TY  - JOUR
AU  - Stojković, Milica
AU  - Ristić, Mirjana
AU  - Đolić, Maja
AU  - Perić Grujić, Aleksandra
AU  - Onjia, Antonije
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7456
AB  - Considering the rising demand for rare earth elements (REEs), researchers are looking for new sources for their extraction, thereby fostering economic and environmentally justified processing solutions. Among potential industrial sources, coal fly ash emerges as one of the most promising. The recovery of REEs from coal fly and bottom ashes derived from different thermal power plants was the main focus of this study. A dual-step methodology was conducted on ash samples, which involved an ultrasonic roasting process to disintegrate the silica matrix, followed by a microwave-assisted acid leaching step to extract REEs. The roasting procedure was studied using the Plackett–Burman design, and the Box–Behnken design was subsequently implemented to optimize the leaching procedure. The optimized ultrasonic roasting procedure was set up at 95 °C for 10 min with an ash-to-roasting agent (3M NaOH) ratio of 0.5:1 (m/V). For acid leaching, the optimal conditions were obtained at 174 °C for 30 min with an HCl ÷ HNO3 mixture (1:1 V/V). The standard reference material (NIST 1633c) was used in the conclusive experiments to estimate the average recovery (80%) of REEs. The green aspects of this methodology were evaluated using several metrics (atom economy, E-factor, and energy consumption). The proposed process outperforms high-temperature roasting procedures in terms of greenness; however, the REE recovery rate is lower.
PB  - MDPI
T2  - Metals
T1  - Recovery of Rare Earth Elements from Coal Fly and Bottom Ashes by Ultrasonic Roasting Followed by Microwave Leaching
IS  - 4
SP  - 371
VL  - 14
DO  - 10.3390/met14040371
ER  - 

@article{
author = "Stojković, Milica and Ristić, Mirjana and Đolić, Maja and Perić Grujić, Aleksandra and Onjia, Antonije",
year = "2024",
abstract = "Considering the rising demand for rare earth elements (REEs), researchers are looking for new sources for their extraction, thereby fostering economic and environmentally justified processing solutions. Among potential industrial sources, coal fly ash emerges as one of the most promising. The recovery of REEs from coal fly and bottom ashes derived from different thermal power plants was the main focus of this study. A dual-step methodology was conducted on ash samples, which involved an ultrasonic roasting process to disintegrate the silica matrix, followed by a microwave-assisted acid leaching step to extract REEs. The roasting procedure was studied using the Plackett–Burman design, and the Box–Behnken design was subsequently implemented to optimize the leaching procedure. The optimized ultrasonic roasting procedure was set up at 95 °C for 10 min with an ash-to-roasting agent (3M NaOH) ratio of 0.5:1 (m/V). For acid leaching, the optimal conditions were obtained at 174 °C for 30 min with an HCl ÷ HNO3 mixture (1:1 V/V). The standard reference material (NIST 1633c) was used in the conclusive experiments to estimate the average recovery (80%) of REEs. The green aspects of this methodology were evaluated using several metrics (atom economy, E-factor, and energy consumption). The proposed process outperforms high-temperature roasting procedures in terms of greenness; however, the REE recovery rate is lower.",
publisher = "MDPI",
journal = "Metals",
title = "Recovery of Rare Earth Elements from Coal Fly and Bottom Ashes by Ultrasonic Roasting Followed by Microwave Leaching",
number = "4",
pages = "371",
volume = "14",
doi = "10.3390/met14040371"
}

Stojković, M., Ristić, M., Đolić, M., Perić Grujić, A.,& Onjia, A.. (2024). Recovery of Rare Earth Elements from Coal Fly and Bottom Ashes by Ultrasonic Roasting Followed by Microwave Leaching. in Metals
MDPI., 14(4), 371.
https://doi.org/10.3390/met14040371

Stojković M, Ristić M, Đolić M, Perić Grujić A, Onjia A. Recovery of Rare Earth Elements from Coal Fly and Bottom Ashes by Ultrasonic Roasting Followed by Microwave Leaching. in Metals. 2024;14(4):371.
doi:10.3390/met14040371 .

Stojković, Milica, Ristić, Mirjana, Đolić, Maja, Perić Grujić, Aleksandra, Onjia, Antonije, "Recovery of Rare Earth Elements from Coal Fly and Bottom Ashes by Ultrasonic Roasting Followed by Microwave Leaching" in Metals, 14, no. 4 (2024):371,
https://doi.org/10.3390/met14040371 . .

TY  - JOUR
AU  - Janković, Andrija Z.
AU  - Ćujić, Mirjana R.
AU  - Stojković, Milica D.
AU  - Đolić, Maja B.
AU  - Živojinović, Dragana Z.
AU  - Onjia, Antonije E.
AU  - Ristić, Mirjana Đ.
AU  - Perić Grujić, Aleksandra A.
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7362
AB  - In this work, removal of heavy metals (Cr, Mn, Co, Ni, Cu, Zn, As, Cd, and Pb) from fly ash has been studied using acid leaching and wet oxidation methods. In parallel, microwave-assisted acid digestion was applied for determination of pseudo-total concentrations of heavy metals to estimate the leaching efficiency. Multivariate statistics (Pearson correlation, principal component analysis, and hierarchical cluster analysis) have shown two dominant groups of elements, depending on their characteristics and affinity towards the ash solid phase. Thus, Cr, Zn, Mn, Co, and Ni belong to the group I, while Pb, As, Cd, and Cu belong to the group II. It was demonstrated that the wet oxidation method was more suitable than acid leaching since the reduction in metal concentration was 30 to 75 % compared to 12 to 25 % obtained by acid digestion. The influence of fly ash treatment on the residue characteristics was investigated by X-ray diffractometry and scanning electron microscopy. The analyses revealed surface and structure changes of fly ash after the wet oxidation treatment. Overall, wet oxidation could be an appropriate treatment for heavy metal removal from fly ash, providing a material that could be further used, thus reducing the risk of pollution caused by the disposal of coal combustion fly ash. © 2024, Association of the Chemical Engineers of Serbia.
AB  - Uklanjanje teških metala (Cr, Mn, Co, Ni, Cu, Zn, As, Cd i Pb) iz elektrofilterskog pepela proučavano je korišćenjem metoda kiselog luženja i vlažne oksidacije. Paralelno je primenjena i kisela digestija uz pomoć mikrotalasne pećnice za određivanje pseudoukupnih koncentracija teških metala u cilju procene efikasnosti luženja. Multivarijantna statistika (Pearsonova korelacija, analiza glavnih komponenti i hijerarhijska klaster analiza) pokazala je dve dominantne grupe elemenata u zavisnosti od njihovih karakteristika i afiniteta prema čvrstoj fazi pepela. Grupe I (Cr, Zn, Mn, Co i Ni) i II (Pb, As, Cd i Cu) su međusobno diskriminisane. Pokazalo se da je metoda vlažne oksidacije prikladnija od kiselog luženja jer je smanjenje koncentracija metala bilo 30-75 % u poređenju sa 12-25 % dobijenih kiselom digestijom. Takođe je ispitan uticaj tretmana letećeg pepela na karakteristike čvrstog ostatka metodama rendgenske difrakcije i skenirajuće elektronske mikroskopije. Ovim metodama su otkrivene promene na površini i u strukturi letećeg pepela nakon tretmana vlažnom oksidacijom. Vlažna oksidacija se može smatrati kao moguća metoda za tretman u cilju uklanjanje teških metala iz letećeg pepela, obezbeđujući materijal koji bi se mogao dalje koristiti i smanjujući rizik od zagađenja izazvanog odlaganjem letećeg pepela.
PB  - Savez hemijskih inženjera Srbije
T2  - Hemijska industrija
T1  - Impact of leaching procedure on heavy metals removal from coal fly ash
T1  - Uticaj metode izluživanja na uklanjanje teških metala iz letećeg pepela
EP  - 62
IS  - 1
SP  - 51
VL  - 78
DO  - 10.2298/HEMIND230901001J
ER  - 

@article{
author = "Janković, Andrija Z. and Ćujić, Mirjana R. and Stojković, Milica D. and Đolić, Maja B. and Živojinović, Dragana Z. and Onjia, Antonije E. and Ristić, Mirjana Đ. and Perić Grujić, Aleksandra A.",
year = "2024",
abstract = "In this work, removal of heavy metals (Cr, Mn, Co, Ni, Cu, Zn, As, Cd, and Pb) from fly ash has been studied using acid leaching and wet oxidation methods. In parallel, microwave-assisted acid digestion was applied for determination of pseudo-total concentrations of heavy metals to estimate the leaching efficiency. Multivariate statistics (Pearson correlation, principal component analysis, and hierarchical cluster analysis) have shown two dominant groups of elements, depending on their characteristics and affinity towards the ash solid phase. Thus, Cr, Zn, Mn, Co, and Ni belong to the group I, while Pb, As, Cd, and Cu belong to the group II. It was demonstrated that the wet oxidation method was more suitable than acid leaching since the reduction in metal concentration was 30 to 75 % compared to 12 to 25 % obtained by acid digestion. The influence of fly ash treatment on the residue characteristics was investigated by X-ray diffractometry and scanning electron microscopy. The analyses revealed surface and structure changes of fly ash after the wet oxidation treatment. Overall, wet oxidation could be an appropriate treatment for heavy metal removal from fly ash, providing a material that could be further used, thus reducing the risk of pollution caused by the disposal of coal combustion fly ash. © 2024, Association of the Chemical Engineers of Serbia., Uklanjanje teških metala (Cr, Mn, Co, Ni, Cu, Zn, As, Cd i Pb) iz elektrofilterskog pepela proučavano je korišćenjem metoda kiselog luženja i vlažne oksidacije. Paralelno je primenjena i kisela digestija uz pomoć mikrotalasne pećnice za određivanje pseudoukupnih koncentracija teških metala u cilju procene efikasnosti luženja. Multivarijantna statistika (Pearsonova korelacija, analiza glavnih komponenti i hijerarhijska klaster analiza) pokazala je dve dominantne grupe elemenata u zavisnosti od njihovih karakteristika i afiniteta prema čvrstoj fazi pepela. Grupe I (Cr, Zn, Mn, Co i Ni) i II (Pb, As, Cd i Cu) su međusobno diskriminisane. Pokazalo se da je metoda vlažne oksidacije prikladnija od kiselog luženja jer je smanjenje koncentracija metala bilo 30-75 % u poređenju sa 12-25 % dobijenih kiselom digestijom. Takođe je ispitan uticaj tretmana letećeg pepela na karakteristike čvrstog ostatka metodama rendgenske difrakcije i skenirajuće elektronske mikroskopije. Ovim metodama su otkrivene promene na površini i u strukturi letećeg pepela nakon tretmana vlažnom oksidacijom. Vlažna oksidacija se može smatrati kao moguća metoda za tretman u cilju uklanjanje teških metala iz letećeg pepela, obezbeđujući materijal koji bi se mogao dalje koristiti i smanjujući rizik od zagađenja izazvanog odlaganjem letećeg pepela.",
publisher = "Savez hemijskih inženjera Srbije",
journal = "Hemijska industrija",
title = "Impact of leaching procedure on heavy metals removal from coal fly ash, Uticaj metode izluživanja na uklanjanje teških metala iz letećeg pepela",
pages = "62-51",
number = "1",
volume = "78",
doi = "10.2298/HEMIND230901001J"
}

Janković, A. Z., Ćujić, M. R., Stojković, M. D., Đolić, M. B., Živojinović, D. Z., Onjia, A. E., Ristić, M. Đ.,& Perić Grujić, A. A.. (2024). Impact of leaching procedure on heavy metals removal from coal fly ash. in Hemijska industrija
Savez hemijskih inženjera Srbije., 78(1), 51-62.
https://doi.org/10.2298/HEMIND230901001J

Janković AZ, Ćujić MR, Stojković MD, Đolić MB, Živojinović DZ, Onjia AE, Ristić MĐ, Perić Grujić AA. Impact of leaching procedure on heavy metals removal from coal fly ash. in Hemijska industrija. 2024;78(1):51-62.
doi:10.2298/HEMIND230901001J .

Janković, Andrija Z., Ćujić, Mirjana R., Stojković, Milica D., Đolić, Maja B., Živojinović, Dragana Z., Onjia, Antonije E., Ristić, Mirjana Đ., Perić Grujić, Aleksandra A., "Impact of leaching procedure on heavy metals removal from coal fly ash" in Hemijska industrija, 78, no. 1 (2024):51-62,
https://doi.org/10.2298/HEMIND230901001J . .

TY  - JOUR
AU  - Vesković, Jelena
AU  - Deršek-Timotić, Ivana
AU  - Lučić, Milica
AU  - Miletić, Andrijana
AU  - Đolić, Maja
AU  - Ražić, Slavica
AU  - Onjia, Antonije
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7407
AB  - Population growth, urbanization, industry, floods, and agriculture globally degrade groundwater in river plains, necessitating action for its quality assessment and management. Hence, a comprehensive methodology, including hydrogeochemical facies (Piper, Gibbs), irrigation indices (SAR, Wilcox), entropy-weighted water quality index (EWQI), positive matrix factorization (PMF), and Monte Carlo simulation of source-specific health risks was used in this study to analyze groundwater in the Morava river plain (Serbia). The results revealed a prevalent Ca–Mg–HCO3 groundwater type, influenced by water–rock interactions. Although groundwater was found suitable for irrigation, only 66.7 % of the samples were considered drinkable. Agricultural activities, natural processes, and municipal wastewater were identified as primary pollution sources. The incremental lifetime cancer risk (ILCR) and hazard index (HI) threshold exceedance for adults and children ranged from 8.5 % to 39 % of the samples, with arsenic identified as the most risk-contributing contaminant. These findings provide valuable insights for researchers studying groundwater vulnerability in river plains.
PB  - Elsevier Ltd.
T2  - Marine Pollution Bulletin
T1  - Entropy-weighted water quality index, hydrogeochemistry, and Monte Carlo simulation of source-specific health risks of groundwater in the Morava River plain (Serbia)
SP  - 116277
VL  - 201
DO  - 10.1016/j.marpolbul.2024.116277
ER  - 

@article{
author = "Vesković, Jelena and Deršek-Timotić, Ivana and Lučić, Milica and Miletić, Andrijana and Đolić, Maja and Ražić, Slavica and Onjia, Antonije",
year = "2024",
abstract = "Population growth, urbanization, industry, floods, and agriculture globally degrade groundwater in river plains, necessitating action for its quality assessment and management. Hence, a comprehensive methodology, including hydrogeochemical facies (Piper, Gibbs), irrigation indices (SAR, Wilcox), entropy-weighted water quality index (EWQI), positive matrix factorization (PMF), and Monte Carlo simulation of source-specific health risks was used in this study to analyze groundwater in the Morava river plain (Serbia). The results revealed a prevalent Ca–Mg–HCO3 groundwater type, influenced by water–rock interactions. Although groundwater was found suitable for irrigation, only 66.7 % of the samples were considered drinkable. Agricultural activities, natural processes, and municipal wastewater were identified as primary pollution sources. The incremental lifetime cancer risk (ILCR) and hazard index (HI) threshold exceedance for adults and children ranged from 8.5 % to 39 % of the samples, with arsenic identified as the most risk-contributing contaminant. These findings provide valuable insights for researchers studying groundwater vulnerability in river plains.",
publisher = "Elsevier Ltd.",
journal = "Marine Pollution Bulletin",
title = "Entropy-weighted water quality index, hydrogeochemistry, and Monte Carlo simulation of source-specific health risks of groundwater in the Morava River plain (Serbia)",
pages = "116277",
volume = "201",
doi = "10.1016/j.marpolbul.2024.116277"
}

Vesković, J., Deršek-Timotić, I., Lučić, M., Miletić, A., Đolić, M., Ražić, S.,& Onjia, A.. (2024). Entropy-weighted water quality index, hydrogeochemistry, and Monte Carlo simulation of source-specific health risks of groundwater in the Morava River plain (Serbia). in Marine Pollution Bulletin
Elsevier Ltd.., 201, 116277.
https://doi.org/10.1016/j.marpolbul.2024.116277

Vesković J, Deršek-Timotić I, Lučić M, Miletić A, Đolić M, Ražić S, Onjia A. Entropy-weighted water quality index, hydrogeochemistry, and Monte Carlo simulation of source-specific health risks of groundwater in the Morava River plain (Serbia). in Marine Pollution Bulletin. 2024;201:116277.
doi:10.1016/j.marpolbul.2024.116277 .

Vesković, Jelena, Deršek-Timotić, Ivana, Lučić, Milica, Miletić, Andrijana, Đolić, Maja, Ražić, Slavica, Onjia, Antonije, "Entropy-weighted water quality index, hydrogeochemistry, and Monte Carlo simulation of source-specific health risks of groundwater in the Morava River plain (Serbia)" in Marine Pollution Bulletin, 201 (2024):116277,
https://doi.org/10.1016/j.marpolbul.2024.116277 . .

TY  - JOUR
AU  - Paulista, Larissa O.
AU  - Ferreira, Alexandre F. P.
AU  - Castanheira, Bruna
AU  - Đolić, Maja B.
AU  - Martins, Ramiro J. E.
AU  - Boaventura, Rui A. R.
AU  - Vilar, Vítor J. P.
AU  - Silva, Tânia F. C. V.
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6622
AB  - A new hybrid catalyst composed of mesostructured silica SBA-15 functionalized with TiO2 and further loaded with RuO2 was developed to efficiently promote thermo-photocatalytic CO2 hydrogenation into methane at low temperatures. The catalytic activity was assessed with respect to TiO2:RuO2 loading, catalyst dosage, illumination source (polychromatic sunlight and monochromatic LEDs) and power, [H2]:[CO2] molar ratio, temperature, and catalyst reusability. The best methanation yields were attained for the RuO2(6.4%):TiO2(16.9%)/SBA-15 nanocomposite at 150 ºC, under simulated sunlight (0.21 W) and stoichiometric [H2]:[CO2] molar ratio, reaching: a specific CH4 production rate of 13.6 mmol gcat-1 h-1; 99.8 % selectivity; 96.8 % CO2 conversion (110-min; 40 mL); and apparent photonic efficiency/quantum yield of 39.5 %/42.1 %. Considering only the active RuO2:TiO2 photocatalyst mass (23.3 %), the CH4 production rate increased to 58.6 mmol gactive_cat-1 h-1. Besides, this highly-active photocatalyst featured excellent UV-Vis-IR light absorbance, high surface area, and stability for reuse when moist gas was removed between cycles.
PB  - Elsevier B.V.
T2  - Applied Catalysis B: Environmental
T1  - Solar-driven thermo-photocatalytic CO2 methanation over a structured RuO2:TiO2/SBA-15 nanocomposite at low temperature
SP  - 123232
VL  - 340
DO  - 10.1016/j.apcatb.2023.123232
ER  - 

@article{
author = "Paulista, Larissa O. and Ferreira, Alexandre F. P. and Castanheira, Bruna and Đolić, Maja B. and Martins, Ramiro J. E. and Boaventura, Rui A. R. and Vilar, Vítor J. P. and Silva, Tânia F. C. V.",
year = "2024",
abstract = "A new hybrid catalyst composed of mesostructured silica SBA-15 functionalized with TiO2 and further loaded with RuO2 was developed to efficiently promote thermo-photocatalytic CO2 hydrogenation into methane at low temperatures. The catalytic activity was assessed with respect to TiO2:RuO2 loading, catalyst dosage, illumination source (polychromatic sunlight and monochromatic LEDs) and power, [H2]:[CO2] molar ratio, temperature, and catalyst reusability. The best methanation yields were attained for the RuO2(6.4%):TiO2(16.9%)/SBA-15 nanocomposite at 150 ºC, under simulated sunlight (0.21 W) and stoichiometric [H2]:[CO2] molar ratio, reaching: a specific CH4 production rate of 13.6 mmol gcat-1 h-1; 99.8 % selectivity; 96.8 % CO2 conversion (110-min; 40 mL); and apparent photonic efficiency/quantum yield of 39.5 %/42.1 %. Considering only the active RuO2:TiO2 photocatalyst mass (23.3 %), the CH4 production rate increased to 58.6 mmol gactive_cat-1 h-1. Besides, this highly-active photocatalyst featured excellent UV-Vis-IR light absorbance, high surface area, and stability for reuse when moist gas was removed between cycles.",
publisher = "Elsevier B.V.",
journal = "Applied Catalysis B: Environmental",
title = "Solar-driven thermo-photocatalytic CO2 methanation over a structured RuO2:TiO2/SBA-15 nanocomposite at low temperature",
pages = "123232",
volume = "340",
doi = "10.1016/j.apcatb.2023.123232"
}

Paulista, L. O., Ferreira, A. F. P., Castanheira, B., Đolić, M. B., Martins, R. J. E., Boaventura, R. A. R., Vilar, V. J. P.,& Silva, T. F. C. V.. (2024). Solar-driven thermo-photocatalytic CO2 methanation over a structured RuO2:TiO2/SBA-15 nanocomposite at low temperature. in Applied Catalysis B: Environmental
Elsevier B.V.., 340, 123232.
https://doi.org/10.1016/j.apcatb.2023.123232

Paulista LO, Ferreira AFP, Castanheira B, Đolić MB, Martins RJE, Boaventura RAR, Vilar VJP, Silva TFCV. Solar-driven thermo-photocatalytic CO2 methanation over a structured RuO2:TiO2/SBA-15 nanocomposite at low temperature. in Applied Catalysis B: Environmental. 2024;340:123232.
doi:10.1016/j.apcatb.2023.123232 .

Paulista, Larissa O., Ferreira, Alexandre F. P., Castanheira, Bruna, Đolić, Maja B., Martins, Ramiro J. E., Boaventura, Rui A. R., Vilar, Vítor J. P., Silva, Tânia F. C. V., "Solar-driven thermo-photocatalytic CO2 methanation over a structured RuO2:TiO2/SBA-15 nanocomposite at low temperature" in Applied Catalysis B: Environmental, 340 (2024):123232,
https://doi.org/10.1016/j.apcatb.2023.123232 . .

TY  - CONF
AU  - Vesković, Jelena
AU  - Lučić, Milica
AU  - Ražić, Slavica
AU  - Deršek-Timotić, Ivana
AU  - Miletić, Andrijana
AU  - Đolić, Maja
AU  - Onjia, Antonije
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7146
AB  - One of the most significant sources of drinking water is groundwater. Therefore, it is
crucial to assess groundwater quality and ascertain potential causes of contamination to address
pollution and provide people with clean drinking water. In this paper, groundwater in the Morava
River plain is investigated and analyzed for 14 physicochemical parameters, such as pH, EC, HCO3
, NO3
-
, PO4
3-
, Cl-
, SO4
2-
, Na+
, K+
, Mg2+, Ca2+, Fe, Mn, and As. To determine groundwater facies and
sources of pollution, three multivariate statistical analysis techniques were applied. Hierarchical
Cluster Analysis (HCA) was used to group groundwater samples based on their similar chemical
characteristics and to determine the dominant hydrochemical groundwater type. According to HCA
results, groundwater samples were clustered into three groups, including Cluster 1 (72.3%), Cluster
2 (19.7%), and Cluster 3 (7.9%), and the main groundwater type was Ca-HCO3 type. Factor Analysis
(FA) incorporated with Pearson correlation analysis was conducted to determine the main sources
of pollution. Water-rock interactions and agricultural practices were identified as primary pollution
sources in the investigated area.
PB  - Belgrade : The Academy of Applied Technical Studies "Belgrade"
C3  - Conference Proceedings / International Scientific and Professional Conference Politehnika 2023, Belgrade, 15th December 2023
T1  - Multivariate analysis of the Morava river plain groundwater
EP  - 94
SP  - 89
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7146
ER  - 

@conference{
author = "Vesković, Jelena and Lučić, Milica and Ražić, Slavica and Deršek-Timotić, Ivana and Miletić, Andrijana and Đolić, Maja and Onjia, Antonije",
year = "2023",
abstract = "One of the most significant sources of drinking water is groundwater. Therefore, it is
crucial to assess groundwater quality and ascertain potential causes of contamination to address
pollution and provide people with clean drinking water. In this paper, groundwater in the Morava
River plain is investigated and analyzed for 14 physicochemical parameters, such as pH, EC, HCO3
, NO3
-
, PO4
3-
, Cl-
, SO4
2-
, Na+
, K+
, Mg2+, Ca2+, Fe, Mn, and As. To determine groundwater facies and
sources of pollution, three multivariate statistical analysis techniques were applied. Hierarchical
Cluster Analysis (HCA) was used to group groundwater samples based on their similar chemical
characteristics and to determine the dominant hydrochemical groundwater type. According to HCA
results, groundwater samples were clustered into three groups, including Cluster 1 (72.3%), Cluster
2 (19.7%), and Cluster 3 (7.9%), and the main groundwater type was Ca-HCO3 type. Factor Analysis
(FA) incorporated with Pearson correlation analysis was conducted to determine the main sources
of pollution. Water-rock interactions and agricultural practices were identified as primary pollution
sources in the investigated area.",
publisher = "Belgrade : The Academy of Applied Technical Studies "Belgrade"",
journal = "Conference Proceedings / International Scientific and Professional Conference Politehnika 2023, Belgrade, 15th December 2023",
title = "Multivariate analysis of the Morava river plain groundwater",
pages = "94-89",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7146"
}

Vesković, J., Lučić, M., Ražić, S., Deršek-Timotić, I., Miletić, A., Đolić, M.,& Onjia, A.. (2023). Multivariate analysis of the Morava river plain groundwater. in Conference Proceedings / International Scientific and Professional Conference Politehnika 2023, Belgrade, 15th December 2023
Belgrade : The Academy of Applied Technical Studies "Belgrade"., 89-94.
https://hdl.handle.net/21.15107/rcub_technorep_7146

Vesković J, Lučić M, Ražić S, Deršek-Timotić I, Miletić A, Đolić M, Onjia A. Multivariate analysis of the Morava river plain groundwater. in Conference Proceedings / International Scientific and Professional Conference Politehnika 2023, Belgrade, 15th December 2023. 2023;:89-94.
https://hdl.handle.net/21.15107/rcub_technorep_7146 .

Vesković, Jelena, Lučić, Milica, Ražić, Slavica, Deršek-Timotić, Ivana, Miletić, Andrijana, Đolić, Maja, Onjia, Antonije, "Multivariate analysis of the Morava river plain groundwater" in Conference Proceedings / International Scientific and Professional Conference Politehnika 2023, Belgrade, 15th December 2023 (2023):89-94,
https://hdl.handle.net/21.15107/rcub_technorep_7146 .

TY  - JOUR
AU  - Ćujić, Mirjana
AU  - Ćirović, Željko
AU  - Đolić, Maja
AU  - Janković-Mandić, Ljiljana
AU  - Radenković, Mirjana
AU  - Onjia, Antonije
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6528
AB  - The health effects attributed to exposure to ambient PM2.5 concentrations
above 10 μg/m3
by using the AirQ+ modeling software were assessed. The
hourly concentrations of PM2.5 were collected from 13 air pollution
monitoring stations in the Belgrade district during Jun and July 2021.,
which were further used as input data for the AirQ+
software. The average
concentration of PM2.5 for two-month monitoring from all sampling sites in
the city was 14.8 μg/m3
, the maximum daily concentration was 55.7 μg/m3
,
while the maximum concentration per hour was 365 μg/m3
. The spatial
distribution of concentrations was mapped using geostatistical interpolation,
revealing hotspots within the city centre and industrial area of the district.
The burden of disease, such as stroke, ischemic heart disease (IHD), chronic
obstructive pulmonary disease (COPD) and lung cancer (LC), due to the
ambient PM2.5 pollution was evaluated according to the WHO methodology
for health risk assessment of air pollution. The model used for this
assessment is based on the attributable proportion defined as the section of
the health effect related to exposure to air pollution in an at-risk population.
The estimated attributable proportion was 19.4% for stroke, 27.2% for IHD,
15.3% for COPD and 9.0% for LC. The estimated number of attributable
cases per 100,000 population at risk, due to PM2.5 air pollution, for stroke,
IHD, COPD, and LC, was 28, 34, 15, and 8, respectively.
PB  - VINČA Institute of Nuclear Sciences
T2  - Thermal Science
T1  - Assessment of the burden of disease due to PM2.5 air pollution for the Belgrade district
EP  - 2273
IS  - 3
SP  - 2265
VL  - 27
DO  - 10.2298/TSCI220131104C
ER  - 

@article{
author = "Ćujić, Mirjana and Ćirović, Željko and Đolić, Maja and Janković-Mandić, Ljiljana and Radenković, Mirjana and Onjia, Antonije",
year = "2023",
abstract = "The health effects attributed to exposure to ambient PM2.5 concentrations
above 10 μg/m3
by using the AirQ+ modeling software were assessed. The
hourly concentrations of PM2.5 were collected from 13 air pollution
monitoring stations in the Belgrade district during Jun and July 2021.,
which were further used as input data for the AirQ+
software. The average
concentration of PM2.5 for two-month monitoring from all sampling sites in
the city was 14.8 μg/m3
, the maximum daily concentration was 55.7 μg/m3
,
while the maximum concentration per hour was 365 μg/m3
. The spatial
distribution of concentrations was mapped using geostatistical interpolation,
revealing hotspots within the city centre and industrial area of the district.
The burden of disease, such as stroke, ischemic heart disease (IHD), chronic
obstructive pulmonary disease (COPD) and lung cancer (LC), due to the
ambient PM2.5 pollution was evaluated according to the WHO methodology
for health risk assessment of air pollution. The model used for this
assessment is based on the attributable proportion defined as the section of
the health effect related to exposure to air pollution in an at-risk population.
The estimated attributable proportion was 19.4% for stroke, 27.2% for IHD,
15.3% for COPD and 9.0% for LC. The estimated number of attributable
cases per 100,000 population at risk, due to PM2.5 air pollution, for stroke,
IHD, COPD, and LC, was 28, 34, 15, and 8, respectively.",
publisher = "VINČA Institute of Nuclear Sciences",
journal = "Thermal Science",
title = "Assessment of the burden of disease due to PM2.5 air pollution for the Belgrade district",
pages = "2273-2265",
number = "3",
volume = "27",
doi = "10.2298/TSCI220131104C"
}

Ćujić, M., Ćirović, Ž., Đolić, M., Janković-Mandić, L., Radenković, M.,& Onjia, A.. (2023). Assessment of the burden of disease due to PM2.5 air pollution for the Belgrade district. in Thermal Science
VINČA Institute of Nuclear Sciences., 27(3), 2265-2273.
https://doi.org/10.2298/TSCI220131104C

Ćujić M, Ćirović Ž, Đolić M, Janković-Mandić L, Radenković M, Onjia A. Assessment of the burden of disease due to PM2.5 air pollution for the Belgrade district. in Thermal Science. 2023;27(3):2265-2273.
doi:10.2298/TSCI220131104C .

Ćujić, Mirjana, Ćirović, Željko, Đolić, Maja, Janković-Mandić, Ljiljana, Radenković, Mirjana, Onjia, Antonije, "Assessment of the burden of disease due to PM2.5 air pollution for the Belgrade district" in Thermal Science, 27, no. 3 (2023):2265-2273,
https://doi.org/10.2298/TSCI220131104C . .

TY  - JOUR
AU  - Andrade, Deborah C.
AU  - Đolić, Maja B.
AU  - Martínez-Huitle, Carlos A.
AU  - dos Santos, Elisama V.
AU  - Silva, Tânia F.C.V.
AU  - Vilar, Vítor J.P.
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5316
AB  - This work proposes an eco-efficient treatment technology for the remediation of a kaolinite-based clay soil artificially contaminated with hexavalent chromium (50 mg Cr(VI) kg–1 soil), combining electrokinetics (EK) with permeable reactive barriers (PRB) composed of cork granules, the major by-product of cork stoppers production. This 100% natural and sustainable material can act as (i) an electron donor in the Cr(VI) reduction into trivalent chromium [Cr(III)], the less toxic state, and as (ii) a binder for the reduced Cr(III) on its pre-oxidized surface. The EK and Cr(VI) reduction efficiencies were assessed over 15 days as a function of the: (i) supporting electrolyte solution (demineralized water – DW, tap water, citric acid – CA, and sodium chloride – NaCl); and (ii) cork-PRB inclusion and position (near the anodic compartment, using direct current, or in the soil middle section, applying reversal polarity). Results showed that DW was the best supporting electrolyte solution, removing about 33% of total chromium (CrT) from the soil towards the anode, mainly under the Cr(VI) form, even though CA and NaCl presented higher electrical conductivity. Besides, nearly 67% Cr(VI) was reduced into less mobile Cr(III) only by soil-borne electron donor constituents, especially iron (> 6 g kg–1), which impaired the overall Cr migration due to the Cr(III) precipitation/adsorption over/onto the soil. Such reaction was boosted by CA and NaCl electrolytes, which increased H+ ions availability, reaching reduction efficiencies higher than 98%. When the cork-PRB was incorporated into the DW-driven EK process near the anode, the best position owing to the low pH, the Cr(VI) reduction and CrT removal efficiencies improved to about 97% and 42%, respectively. Furthermore, virtually no Cr(VI) migrated to the anolyte/catholyte, and less than 2% Cr(III) was found in the anodic chamber, being c.a. 40% of CrT retained in the cork-PRB as Cr(III) and c.a. 3%/55% of Cr(VI)/Cr(III) into the soil. Notwithstanding, the EK-PRB process can render polluted soil somewhat less dangerous and prevent the spreading of contamination to natural aquifers.
PB  - Elsevier Ltd.
T2  - Electrochimica Acta
T1  - Coupling electrokinetic with a cork-based permeable reactive barrier to prevent groundwater pollution: A case study on hexavalent chromium-contaminated soil
SP  - 140936
VL  - 429
DO  - 10.1016/j.electacta.2022.140936
ER  - 

@article{
author = "Andrade, Deborah C. and Đolić, Maja B. and Martínez-Huitle, Carlos A. and dos Santos, Elisama V. and Silva, Tânia F.C.V. and Vilar, Vítor J.P.",
year = "2022",
abstract = "This work proposes an eco-efficient treatment technology for the remediation of a kaolinite-based clay soil artificially contaminated with hexavalent chromium (50 mg Cr(VI) kg–1 soil), combining electrokinetics (EK) with permeable reactive barriers (PRB) composed of cork granules, the major by-product of cork stoppers production. This 100% natural and sustainable material can act as (i) an electron donor in the Cr(VI) reduction into trivalent chromium [Cr(III)], the less toxic state, and as (ii) a binder for the reduced Cr(III) on its pre-oxidized surface. The EK and Cr(VI) reduction efficiencies were assessed over 15 days as a function of the: (i) supporting electrolyte solution (demineralized water – DW, tap water, citric acid – CA, and sodium chloride – NaCl); and (ii) cork-PRB inclusion and position (near the anodic compartment, using direct current, or in the soil middle section, applying reversal polarity). Results showed that DW was the best supporting electrolyte solution, removing about 33% of total chromium (CrT) from the soil towards the anode, mainly under the Cr(VI) form, even though CA and NaCl presented higher electrical conductivity. Besides, nearly 67% Cr(VI) was reduced into less mobile Cr(III) only by soil-borne electron donor constituents, especially iron (> 6 g kg–1), which impaired the overall Cr migration due to the Cr(III) precipitation/adsorption over/onto the soil. Such reaction was boosted by CA and NaCl electrolytes, which increased H+ ions availability, reaching reduction efficiencies higher than 98%. When the cork-PRB was incorporated into the DW-driven EK process near the anode, the best position owing to the low pH, the Cr(VI) reduction and CrT removal efficiencies improved to about 97% and 42%, respectively. Furthermore, virtually no Cr(VI) migrated to the anolyte/catholyte, and less than 2% Cr(III) was found in the anodic chamber, being c.a. 40% of CrT retained in the cork-PRB as Cr(III) and c.a. 3%/55% of Cr(VI)/Cr(III) into the soil. Notwithstanding, the EK-PRB process can render polluted soil somewhat less dangerous and prevent the spreading of contamination to natural aquifers.",
publisher = "Elsevier Ltd.",
journal = "Electrochimica Acta",
title = "Coupling electrokinetic with a cork-based permeable reactive barrier to prevent groundwater pollution: A case study on hexavalent chromium-contaminated soil",
pages = "140936",
volume = "429",
doi = "10.1016/j.electacta.2022.140936"
}

Andrade, D. C., Đolić, M. B., Martínez-Huitle, C. A., dos Santos, E. V., Silva, T. F.C.V.,& Vilar, V. J.P.. (2022). Coupling electrokinetic with a cork-based permeable reactive barrier to prevent groundwater pollution: A case study on hexavalent chromium-contaminated soil. in Electrochimica Acta
Elsevier Ltd.., 429, 140936.
https://doi.org/10.1016/j.electacta.2022.140936

Andrade DC, Đolić MB, Martínez-Huitle CA, dos Santos EV, Silva TF, Vilar VJ. Coupling electrokinetic with a cork-based permeable reactive barrier to prevent groundwater pollution: A case study on hexavalent chromium-contaminated soil. in Electrochimica Acta. 2022;429:140936.
doi:10.1016/j.electacta.2022.140936 .

Andrade, Deborah C., Đolić, Maja B., Martínez-Huitle, Carlos A., dos Santos, Elisama V., Silva, Tânia F.C.V., Vilar, Vítor J.P., "Coupling electrokinetic with a cork-based permeable reactive barrier to prevent groundwater pollution: A case study on hexavalent chromium-contaminated soil" in Electrochimica Acta, 429 (2022):140936,
https://doi.org/10.1016/j.electacta.2022.140936 . .

TY  - JOUR
AU  - Silva, Karyn NO
AU  - Henrique, João MM
AU  - Đolić, Maja B.
AU  - Martínez-Huitle, Carlos A
AU  - Dos Santos, Elisama V
AU  - Moreira, Francisca C
AU  - Vilar, Vítor JP
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5196
AB  - Soil washing is a well-known technology for the remediation of soils polluted by organic contaminants, including polycyclic aromatic hydrocarbons (PAHs). This study aimed to go further by integrating soil washing and permeable reactive barriers (PRBs) made of cork granules to remove PAHs from the soil. While PAHs may be transferred from the soil to the washing solution in the soil washing step, the cork PRB may provide the removal of PAHs from the washing solution, ultimately leading to the reuse of this solution. RESULTS: The integrated approach was tested by means of packed bed column experiments in the absence and presence of cork PRBs. Two PAHs were under focus: fluorene (FLU) and phenanthrene (PHE). In soil with 0.5 mmol L−1 kgsoil−1 of FLU and PHE, the soil washing technique employing thermally treated cork granules and a solution of 70%/30% water/acetonitrile (v/v) flowing at 2.2 mL min−1 promoted the transfer of ~58% of PAHs from the soil to the washing solution, while the cork PRB retained ~98% of the PAHs from the washing solution. The acetonitrile content of the water/acetonitrile washing solutions contributed to the soil washing since it was responsible for PAH desorption and elution, however it was unfavorable for PAH sorption onto the cork as acetonitrile competed with PAHs for cork sorption sites. CONCLUSION: Cork PRBs were able to retain PAHs from soil washing solutions and provide final solutions free of PAHs, demonstrating the viability of integrating solvent-aided soil washing with cork PRBs. © 2022 Society of Chemical Industry (SCI).
PB  - John Wiley and Sons Ltd
T2  - Journal of Chemical Technology and Biotechnology
T1  - Integration of soil washing and cork permeable reactive barriers for the remediation of soil contaminated with polycyclic aromatic hydrocarbons
DO  - 10.1002/jctb.7203
ER  - 

@article{
author = "Silva, Karyn NO and Henrique, João MM and Đolić, Maja B. and Martínez-Huitle, Carlos A and Dos Santos, Elisama V and Moreira, Francisca C and Vilar, Vítor JP",
year = "2022",
abstract = "Soil washing is a well-known technology for the remediation of soils polluted by organic contaminants, including polycyclic aromatic hydrocarbons (PAHs). This study aimed to go further by integrating soil washing and permeable reactive barriers (PRBs) made of cork granules to remove PAHs from the soil. While PAHs may be transferred from the soil to the washing solution in the soil washing step, the cork PRB may provide the removal of PAHs from the washing solution, ultimately leading to the reuse of this solution. RESULTS: The integrated approach was tested by means of packed bed column experiments in the absence and presence of cork PRBs. Two PAHs were under focus: fluorene (FLU) and phenanthrene (PHE). In soil with 0.5 mmol L−1 kgsoil−1 of FLU and PHE, the soil washing technique employing thermally treated cork granules and a solution of 70%/30% water/acetonitrile (v/v) flowing at 2.2 mL min−1 promoted the transfer of ~58% of PAHs from the soil to the washing solution, while the cork PRB retained ~98% of the PAHs from the washing solution. The acetonitrile content of the water/acetonitrile washing solutions contributed to the soil washing since it was responsible for PAH desorption and elution, however it was unfavorable for PAH sorption onto the cork as acetonitrile competed with PAHs for cork sorption sites. CONCLUSION: Cork PRBs were able to retain PAHs from soil washing solutions and provide final solutions free of PAHs, demonstrating the viability of integrating solvent-aided soil washing with cork PRBs. © 2022 Society of Chemical Industry (SCI).",
publisher = "John Wiley and Sons Ltd",
journal = "Journal of Chemical Technology and Biotechnology",
title = "Integration of soil washing and cork permeable reactive barriers for the remediation of soil contaminated with polycyclic aromatic hydrocarbons",
doi = "10.1002/jctb.7203"
}

Silva, K. N., Henrique, J. M., Đolić, M. B., Martínez-Huitle, C. A., Dos Santos, E. V., Moreira, F. C.,& Vilar, V. J.. (2022). Integration of soil washing and cork permeable reactive barriers for the remediation of soil contaminated with polycyclic aromatic hydrocarbons. in Journal of Chemical Technology and Biotechnology
John Wiley and Sons Ltd..
https://doi.org/10.1002/jctb.7203

Silva KN, Henrique JM, Đolić MB, Martínez-Huitle CA, Dos Santos EV, Moreira FC, Vilar VJ. Integration of soil washing and cork permeable reactive barriers for the remediation of soil contaminated with polycyclic aromatic hydrocarbons. in Journal of Chemical Technology and Biotechnology. 2022;.
doi:10.1002/jctb.7203 .

Silva, Karyn NO, Henrique, João MM, Đolić, Maja B., Martínez-Huitle, Carlos A, Dos Santos, Elisama V, Moreira, Francisca C, Vilar, Vítor JP, "Integration of soil washing and cork permeable reactive barriers for the remediation of soil contaminated with polycyclic aromatic hydrocarbons" in Journal of Chemical Technology and Biotechnology (2022),
https://doi.org/10.1002/jctb.7203 . .

TY  - JOUR
AU  - Marjanović, Vesna
AU  - Marković, Radmila
AU  - Steharnik, Mirjana
AU  - Dimitrijević, Silvana
AU  - Marinković, Aleksandar D.
AU  - Perić-Grujić, Aleksandra
AU  - Đolić, Maja
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5271
AB  - Highly porous lignin-based microspheres, modified by magnetite nanoparticles, were used for the first time for the removal of selenate anions, Se(VI), from spiked and real water samples. The influence of experimental conditions: selenate concentration, adsorbent dosage and contact time on the adsorption capacity was investigated in a batch experimental mode. The FTIR, XRD, SEM techniques were used to analyze the structural and morphological properties of the native and exhausted adsorbent. The maximum adsorption capacity was found to be 69.9 mg/g for Se(VI) anions at pH 6.46 from the simulated water samples. The modified natural polymer was efficient in Se(VI) removal from the real (potable) water samples, originated from six cities in the Republic of Serbia, with an overage efficacy of 20%. The regeneration capacity of 61% in one cycle of desorption (0.5 M NaOH as desorption solution) of bio-based adsorbent was gained in this investigation. The examined material demonstrated a significant affinity for Se(VI) oxyanion, but a low potential for multi-cycle material application; consequently, the loaded sorbent could be proposed to be used as a Se fertilizer.
PB  - MDPI
T2  - International Journal of Molecular Sciences
T1  - Lignin Microspheres Modified with Magnetite Nanoparticles as a Selenate Highly Porous Adsorbent
IS  - 22
SP  - 13872
VL  - 23
DO  - 10.3390/ijms232213872
ER  - 

@article{
author = "Marjanović, Vesna and Marković, Radmila and Steharnik, Mirjana and Dimitrijević, Silvana and Marinković, Aleksandar D. and Perić-Grujić, Aleksandra and Đolić, Maja",
year = "2022",
abstract = "Highly porous lignin-based microspheres, modified by magnetite nanoparticles, were used for the first time for the removal of selenate anions, Se(VI), from spiked and real water samples. The influence of experimental conditions: selenate concentration, adsorbent dosage and contact time on the adsorption capacity was investigated in a batch experimental mode. The FTIR, XRD, SEM techniques were used to analyze the structural and morphological properties of the native and exhausted adsorbent. The maximum adsorption capacity was found to be 69.9 mg/g for Se(VI) anions at pH 6.46 from the simulated water samples. The modified natural polymer was efficient in Se(VI) removal from the real (potable) water samples, originated from six cities in the Republic of Serbia, with an overage efficacy of 20%. The regeneration capacity of 61% in one cycle of desorption (0.5 M NaOH as desorption solution) of bio-based adsorbent was gained in this investigation. The examined material demonstrated a significant affinity for Se(VI) oxyanion, but a low potential for multi-cycle material application; consequently, the loaded sorbent could be proposed to be used as a Se fertilizer.",
publisher = "MDPI",
journal = "International Journal of Molecular Sciences",
title = "Lignin Microspheres Modified with Magnetite Nanoparticles as a Selenate Highly Porous Adsorbent",
number = "22",
pages = "13872",
volume = "23",
doi = "10.3390/ijms232213872"
}

Marjanović, V., Marković, R., Steharnik, M., Dimitrijević, S., Marinković, A. D., Perić-Grujić, A.,& Đolić, M.. (2022). Lignin Microspheres Modified with Magnetite Nanoparticles as a Selenate Highly Porous Adsorbent. in International Journal of Molecular Sciences
MDPI., 23(22), 13872.
https://doi.org/10.3390/ijms232213872

Marjanović V, Marković R, Steharnik M, Dimitrijević S, Marinković AD, Perić-Grujić A, Đolić M. Lignin Microspheres Modified with Magnetite Nanoparticles as a Selenate Highly Porous Adsorbent. in International Journal of Molecular Sciences. 2022;23(22):13872.
doi:10.3390/ijms232213872 .

Marjanović, Vesna, Marković, Radmila, Steharnik, Mirjana, Dimitrijević, Silvana, Marinković, Aleksandar D., Perić-Grujić, Aleksandra, Đolić, Maja, "Lignin Microspheres Modified with Magnetite Nanoparticles as a Selenate Highly Porous Adsorbent" in International Journal of Molecular Sciences, 23, no. 22 (2022):13872,
https://doi.org/10.3390/ijms232213872 . .

TY  - JOUR
AU  - Presumido, Pedro H.
AU  - dos Santos, Lucrecio F.
AU  - Neuparth, Teresa
AU  - Santos, Miguel M.
AU  - Feliciano, Manuel
AU  - Primo, Ana
AU  - Garcia, Hermenegildo
AU  - Đolić, Maja
AU  - Vilar, Vitor J. P.
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5019
AB  - This work presents a ceramic tubular membrane coated with a continuous graphene-TiO2 nanocomposite thin-film for contaminants of emerging concern (CECs) removal from synthetic and real matrices in single-pass flow-through operation. Microfiltration ceramic membranes were coated in situ with graphene (G)-TiO2-P25 nano-composite using two different methods: Membrane type A - TiO2-P25 incorporated in the G preparation stage (1% [MA-1], 2% [MA-2] and 3% [MA-3] [w/v]), and Membrane type B - TiO2-P25 thin-film uniformly coated over the G film surface (coating layers: 3 [MB-1], 6 [MB-2], and 9 [MB-3]). After the catalyst deposition and before the pyrolysis step, air was forced to pass through the membranes pores (inside-outside mode), providing a porous film. The CECs solution (diclofenac-DCF, 17 beta-estradiol-E2, 17 alpha-ethinylestradiol-EE2 and amoxicillin-AMX) was prepared using Ultrapure water (UPW) or an urban wastewater after secondary treatment (UWW) fortified with 500 mu g L-1 of each CEC. Membranes were characterized by the following techniques: Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM), Fourier-Transform Infrared spectroscopy (FTIR), Diffuse Reflectance UV-Visible spectroscopy (DR UV-Vis) and Raman spectroscopy. The membranes coated with MA-3 and MB-2 catalyst films, irradiated by UVA light, showed the highest ability for CECs removal. Furthermore, the Relative flux reduction ratio (RFR) decreased around 45% in the absence of UVA light, owing to membrane fouling. The combination of filtration and oxidation (G-TiO2-UVA) provided a permeate with higher quality and minimized membrane fouling. Although membrane type B allowed for a permeate with higher quality, membrane type A provided a higher permeate flux.
T2  - Chemical Engineering Journal
T1  - A Novel ceramic tubular membrane coated with a continuous graphene-TiO2 nanocomposite thin-film for CECs mitigation
VL  - 430
DO  - 10.1016/j.cej.2021.132639
ER  - 

@article{
author = "Presumido, Pedro H. and dos Santos, Lucrecio F. and Neuparth, Teresa and Santos, Miguel M. and Feliciano, Manuel and Primo, Ana and Garcia, Hermenegildo and Đolić, Maja and Vilar, Vitor J. P.",
year = "2022",
abstract = "This work presents a ceramic tubular membrane coated with a continuous graphene-TiO2 nanocomposite thin-film for contaminants of emerging concern (CECs) removal from synthetic and real matrices in single-pass flow-through operation. Microfiltration ceramic membranes were coated in situ with graphene (G)-TiO2-P25 nano-composite using two different methods: Membrane type A - TiO2-P25 incorporated in the G preparation stage (1% [MA-1], 2% [MA-2] and 3% [MA-3] [w/v]), and Membrane type B - TiO2-P25 thin-film uniformly coated over the G film surface (coating layers: 3 [MB-1], 6 [MB-2], and 9 [MB-3]). After the catalyst deposition and before the pyrolysis step, air was forced to pass through the membranes pores (inside-outside mode), providing a porous film. The CECs solution (diclofenac-DCF, 17 beta-estradiol-E2, 17 alpha-ethinylestradiol-EE2 and amoxicillin-AMX) was prepared using Ultrapure water (UPW) or an urban wastewater after secondary treatment (UWW) fortified with 500 mu g L-1 of each CEC. Membranes were characterized by the following techniques: Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM), Fourier-Transform Infrared spectroscopy (FTIR), Diffuse Reflectance UV-Visible spectroscopy (DR UV-Vis) and Raman spectroscopy. The membranes coated with MA-3 and MB-2 catalyst films, irradiated by UVA light, showed the highest ability for CECs removal. Furthermore, the Relative flux reduction ratio (RFR) decreased around 45% in the absence of UVA light, owing to membrane fouling. The combination of filtration and oxidation (G-TiO2-UVA) provided a permeate with higher quality and minimized membrane fouling. Although membrane type B allowed for a permeate with higher quality, membrane type A provided a higher permeate flux.",
journal = "Chemical Engineering Journal",
title = "A Novel ceramic tubular membrane coated with a continuous graphene-TiO2 nanocomposite thin-film for CECs mitigation",
volume = "430",
doi = "10.1016/j.cej.2021.132639"
}

Presumido, P. H., dos Santos, L. F., Neuparth, T., Santos, M. M., Feliciano, M., Primo, A., Garcia, H., Đolić, M.,& Vilar, V. J. P.. (2022). A Novel ceramic tubular membrane coated with a continuous graphene-TiO2 nanocomposite thin-film for CECs mitigation. in Chemical Engineering Journal, 430.
https://doi.org/10.1016/j.cej.2021.132639

Presumido PH, dos Santos LF, Neuparth T, Santos MM, Feliciano M, Primo A, Garcia H, Đolić M, Vilar VJP. A Novel ceramic tubular membrane coated with a continuous graphene-TiO2 nanocomposite thin-film for CECs mitigation. in Chemical Engineering Journal. 2022;430.
doi:10.1016/j.cej.2021.132639 .

Presumido, Pedro H., dos Santos, Lucrecio F., Neuparth, Teresa, Santos, Miguel M., Feliciano, Manuel, Primo, Ana, Garcia, Hermenegildo, Đolić, Maja, Vilar, Vitor J. P., "A Novel ceramic tubular membrane coated with a continuous graphene-TiO2 nanocomposite thin-film for CECs mitigation" in Chemical Engineering Journal, 430 (2022),
https://doi.org/10.1016/j.cej.2021.132639 . .

TY  - JOUR
AU  - Karić, Nataša
AU  - Maia, Alexandra S.
AU  - Teodorović, Ana
AU  - Atanasova, Nataša
AU  - Langergraber, Guenter
AU  - Crini, Grégorio
AU  - Ribeiro, Ana R.L.
AU  - Đolić, Maja
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5094
AB  - The conventional waste management practices dispose or incinerate agricultural and forestry waste, contributing to the environmental pollution while misusing biomass, a valuable resource with a great potential of reuse. In fact, cultivation of agricultural crops and harvesting generate an abundant amount of waste (e.g., stones, shells, straw) that can be used for wastewater treatment. Waste biomass may be used as: (i) an adsorbent in its original, raw form, following ambient drying and grinding; (ii) modified bio-based sorbents; or (iii) a source material for the synthesis of activated carbon adsorbents through carbonization. Despite the numerous publications in this field examining the removal of a wide range of target pollutants (metals, metalloids, dyes, pesticides, as well as emerging contaminants) by several materials, more realistic studies are still required to evaluate the potential to remove residual compounds in complex matrices, by testing natural matrices, i.e., environmental samples without spiking the target compounds. This perspective paper highlights how an integrated-engineering approach may help solving environmental-pollution issues related to water, solid waste, and air pollution. Chiefly, the application of locally produced bio-waste as an adsorbent for wastewater treatment tackles water contamination, decreases the overall amount of agricultural waste, and reduces the potential gas emissions caused by waste transportation, treatment and/or disposal.
PB  - Elsevier B.V.
T2  - Chemical Engineering Journal Advances
T1  - Bio-waste valorisation: Agricultural wastes as biosorbents for removal of (in)organic pollutants in wastewater treatment
SP  - 100239
VL  - 9
DO  - 10.1016/j.ceja.2021.100239
ER  - 

@article{
author = "Karić, Nataša and Maia, Alexandra S. and Teodorović, Ana and Atanasova, Nataša and Langergraber, Guenter and Crini, Grégorio and Ribeiro, Ana R.L. and Đolić, Maja",
year = "2022",
abstract = "The conventional waste management practices dispose or incinerate agricultural and forestry waste, contributing to the environmental pollution while misusing biomass, a valuable resource with a great potential of reuse. In fact, cultivation of agricultural crops and harvesting generate an abundant amount of waste (e.g., stones, shells, straw) that can be used for wastewater treatment. Waste biomass may be used as: (i) an adsorbent in its original, raw form, following ambient drying and grinding; (ii) modified bio-based sorbents; or (iii) a source material for the synthesis of activated carbon adsorbents through carbonization. Despite the numerous publications in this field examining the removal of a wide range of target pollutants (metals, metalloids, dyes, pesticides, as well as emerging contaminants) by several materials, more realistic studies are still required to evaluate the potential to remove residual compounds in complex matrices, by testing natural matrices, i.e., environmental samples without spiking the target compounds. This perspective paper highlights how an integrated-engineering approach may help solving environmental-pollution issues related to water, solid waste, and air pollution. Chiefly, the application of locally produced bio-waste as an adsorbent for wastewater treatment tackles water contamination, decreases the overall amount of agricultural waste, and reduces the potential gas emissions caused by waste transportation, treatment and/or disposal.",
publisher = "Elsevier B.V.",
journal = "Chemical Engineering Journal Advances",
title = "Bio-waste valorisation: Agricultural wastes as biosorbents for removal of (in)organic pollutants in wastewater treatment",
pages = "100239",
volume = "9",
doi = "10.1016/j.ceja.2021.100239"
}

Karić, N., Maia, A. S., Teodorović, A., Atanasova, N., Langergraber, G., Crini, G., Ribeiro, A. R.L.,& Đolić, M.. (2022). Bio-waste valorisation: Agricultural wastes as biosorbents for removal of (in)organic pollutants in wastewater treatment. in Chemical Engineering Journal Advances
Elsevier B.V.., 9, 100239.
https://doi.org/10.1016/j.ceja.2021.100239

Karić N, Maia AS, Teodorović A, Atanasova N, Langergraber G, Crini G, Ribeiro AR, Đolić M. Bio-waste valorisation: Agricultural wastes as biosorbents for removal of (in)organic pollutants in wastewater treatment. in Chemical Engineering Journal Advances. 2022;9:100239.
doi:10.1016/j.ceja.2021.100239 .

Karić, Nataša, Maia, Alexandra S., Teodorović, Ana, Atanasova, Nataša, Langergraber, Guenter, Crini, Grégorio, Ribeiro, Ana R.L., Đolić, Maja, "Bio-waste valorisation: Agricultural wastes as biosorbents for removal of (in)organic pollutants in wastewater treatment" in Chemical Engineering Journal Advances, 9 (2022):100239,
https://doi.org/10.1016/j.ceja.2021.100239 . .

TY  - JOUR
AU  - Popović, Ana L.
AU  - Veličković, Zlate
AU  - Radovanović, Željko
AU  - Đolić, Maja
AU  - Pavlović, Vladimir
AU  - Marinković, Aleksandar D.
AU  - Grzetić, Jelena D.
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5155
AB  - Highly effective lignin-based microspheres were prepared by inverse copolymerization of lignin (kraft) from suspension, with poly(ethylene imine) and amino-functionalized magnetite nanoparticles (A-LMS_Fe3O4) or manganese(IV)oxide nanoparticles (A-LMS_MnO2). The XRD, FTIR, SEM, BET, TEM techniques, including the porosity determination, were performed to analyze morphological and structural properties of synthesized microspheres. The effect of pH, the adsorbent dosage, temperature and contact duration on a batch-mode adsorption efficiency of arsenate and chromate (oxy)anions removal was tested. Spontaneous adsorption was found to be feasible, reaching the adsorption capacities of Cr(VI) (62.9 mg g-1), As(V) (47.8 mg g-1) by A-LMS_Fe3O4, and of Cr(VI) (73.9 mg g-1), As(V) (62.5 mg g-1) using A-LMS_MnO2 adsorbent. Fast removal rates were confirmed via kinetic study, using pseudo-second order, the Weber-Morris and the single resistance mass-transfer model, with a limiting step of the diffusion transport through pores. The correlation of fixed-bed-column results with Bohart-Adams, Thomas, Yoon-Nelson and Dose Response models displayed that breakthrough behavior was influenced by flow rate and the inlet concentration. Significant potential of produced bio-adsorbent is further confirmed by the pore surface diffusion modeling, desorption study and adsorption from multi-component system using artificial water.
PB  - Elsevier Ltd.
T2  - Journal of Environmental Chemical Engineering
T1  - Hybrid amino-terminated lignin microspheres loaded with magnetite and manganese oxide nanoparticles: An effective hazardous oxyanions adsorbent
IS  - 3
SP  - 108009
VL  - 10
DO  - 10.1016/j.jece.2022.108009
ER  - 

@article{
author = "Popović, Ana L. and Veličković, Zlate and Radovanović, Željko and Đolić, Maja and Pavlović, Vladimir and Marinković, Aleksandar D. and Grzetić, Jelena D.",
year = "2022",
abstract = "Highly effective lignin-based microspheres were prepared by inverse copolymerization of lignin (kraft) from suspension, with poly(ethylene imine) and amino-functionalized magnetite nanoparticles (A-LMS_Fe3O4) or manganese(IV)oxide nanoparticles (A-LMS_MnO2). The XRD, FTIR, SEM, BET, TEM techniques, including the porosity determination, were performed to analyze morphological and structural properties of synthesized microspheres. The effect of pH, the adsorbent dosage, temperature and contact duration on a batch-mode adsorption efficiency of arsenate and chromate (oxy)anions removal was tested. Spontaneous adsorption was found to be feasible, reaching the adsorption capacities of Cr(VI) (62.9 mg g-1), As(V) (47.8 mg g-1) by A-LMS_Fe3O4, and of Cr(VI) (73.9 mg g-1), As(V) (62.5 mg g-1) using A-LMS_MnO2 adsorbent. Fast removal rates were confirmed via kinetic study, using pseudo-second order, the Weber-Morris and the single resistance mass-transfer model, with a limiting step of the diffusion transport through pores. The correlation of fixed-bed-column results with Bohart-Adams, Thomas, Yoon-Nelson and Dose Response models displayed that breakthrough behavior was influenced by flow rate and the inlet concentration. Significant potential of produced bio-adsorbent is further confirmed by the pore surface diffusion modeling, desorption study and adsorption from multi-component system using artificial water.",
publisher = "Elsevier Ltd.",
journal = "Journal of Environmental Chemical Engineering",
title = "Hybrid amino-terminated lignin microspheres loaded with magnetite and manganese oxide nanoparticles: An effective hazardous oxyanions adsorbent",
number = "3",
pages = "108009",
volume = "10",
doi = "10.1016/j.jece.2022.108009"
}

Popović, A. L., Veličković, Z., Radovanović, Ž., Đolić, M., Pavlović, V., Marinković, A. D.,& Grzetić, J. D.. (2022). Hybrid amino-terminated lignin microspheres loaded with magnetite and manganese oxide nanoparticles: An effective hazardous oxyanions adsorbent. in Journal of Environmental Chemical Engineering
Elsevier Ltd.., 10(3), 108009.
https://doi.org/10.1016/j.jece.2022.108009

Popović AL, Veličković Z, Radovanović Ž, Đolić M, Pavlović V, Marinković AD, Grzetić JD. Hybrid amino-terminated lignin microspheres loaded with magnetite and manganese oxide nanoparticles: An effective hazardous oxyanions adsorbent. in Journal of Environmental Chemical Engineering. 2022;10(3):108009.
doi:10.1016/j.jece.2022.108009 .

Popović, Ana L., Veličković, Zlate, Radovanović, Željko, Đolić, Maja, Pavlović, Vladimir, Marinković, Aleksandar D., Grzetić, Jelena D., "Hybrid amino-terminated lignin microspheres loaded with magnetite and manganese oxide nanoparticles: An effective hazardous oxyanions adsorbent" in Journal of Environmental Chemical Engineering, 10, no. 3 (2022):108009,
https://doi.org/10.1016/j.jece.2022.108009 . .

TY  - JOUR
AU  - Pedrosa, Marta
AU  - Ribeiroa, Rui S.
AU  - Guerra-Rodríguez, Sonia
AU  - Rodríguez-Chuecac, Jorge
AU  - Rodríguez, Encarnación
AU  - Silva, Adrián M.T.
AU  - Đolić, Maja
AU  - Lado Ribeiro, Ana Rita
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5166
AB  - This study proposes an efficient activated spirulina-based carbon material (ASBCM800) with an extremely high specific surface area (2211 m2 g−1) to eliminate a wide range of micropollutants (MPs) frequently detected in wastewaters. This bio-sorbent can be simply synthesized by pre-carbonization at 600 °C, followed by activation/carbonization with KOH at 800 °C. The material was fully characterized by nitrogen adsorption–desorption isotherms, thermogravimetric analysis (TGA), attenuated total reflection Fourier transformed infrared (FTIR-ATR) spectroscopy, scanning (SEM) and transmission (TEM) electron microscopy, and X-ray photoelectron spectroscopy (XPS).

The highly porous bio-based ASBCM800 material was tested as bio-sorbent (0.25 g L-1) of two model MPs – metoprolol (pKa 9.6) and diclofenac (pKa 4.0) – each individually spiked at 1 mg L-1 in ultrapure water (natural pH of ca. 5.0 ± 1.0). Adsorption capacities of 660.5 and 588.9 mg g−1 at 25 °C, respectively for metoprolol and diclofenac, were determined by using the 3-parameter Sips model. In subsequent experiments, the novel bio-sorbent was also efficient to remove in less than 30 min more than 88% of most of 20 MPs belonging to 5 classes (6 antibiotics, 3 beta-blockers, 5 multi-class pharmaceuticals, 4 herbicides, and 2 insecticides) that were spiked at 100 µg L-1 each in a secondary effluent sample of an urban wastewater treatment plant. This interesting strategy to remove trace MPs from complex matrices as wastewaters, will also contribute to control algal blooms and to mitigate eutrophication due to the resource recovery of spirulina.
PB  - Elsevier
T2  - Environmental Nanotechnology, Monitoring & Management
T1  - Spirulina-based carbon bio-sorbent for the efficient removal of metoprolol, diclofenac and other micropollutants from wastewater
SP  - 100720
VL  - 18
DO  - 10.1016/j.enmm.2022.100720
ER  - 

@article{
author = "Pedrosa, Marta and Ribeiroa, Rui S. and Guerra-Rodríguez, Sonia and Rodríguez-Chuecac, Jorge and Rodríguez, Encarnación and Silva, Adrián M.T. and Đolić, Maja and Lado Ribeiro, Ana Rita",
year = "2022",
abstract = "This study proposes an efficient activated spirulina-based carbon material (ASBCM800) with an extremely high specific surface area (2211 m2 g−1) to eliminate a wide range of micropollutants (MPs) frequently detected in wastewaters. This bio-sorbent can be simply synthesized by pre-carbonization at 600 °C, followed by activation/carbonization with KOH at 800 °C. The material was fully characterized by nitrogen adsorption–desorption isotherms, thermogravimetric analysis (TGA), attenuated total reflection Fourier transformed infrared (FTIR-ATR) spectroscopy, scanning (SEM) and transmission (TEM) electron microscopy, and X-ray photoelectron spectroscopy (XPS).

The highly porous bio-based ASBCM800 material was tested as bio-sorbent (0.25 g L-1) of two model MPs – metoprolol (pKa 9.6) and diclofenac (pKa 4.0) – each individually spiked at 1 mg L-1 in ultrapure water (natural pH of ca. 5.0 ± 1.0). Adsorption capacities of 660.5 and 588.9 mg g−1 at 25 °C, respectively for metoprolol and diclofenac, were determined by using the 3-parameter Sips model. In subsequent experiments, the novel bio-sorbent was also efficient to remove in less than 30 min more than 88% of most of 20 MPs belonging to 5 classes (6 antibiotics, 3 beta-blockers, 5 multi-class pharmaceuticals, 4 herbicides, and 2 insecticides) that were spiked at 100 µg L-1 each in a secondary effluent sample of an urban wastewater treatment plant. This interesting strategy to remove trace MPs from complex matrices as wastewaters, will also contribute to control algal blooms and to mitigate eutrophication due to the resource recovery of spirulina.",
publisher = "Elsevier",
journal = "Environmental Nanotechnology, Monitoring & Management",
title = "Spirulina-based carbon bio-sorbent for the efficient removal of metoprolol, diclofenac and other micropollutants from wastewater",
pages = "100720",
volume = "18",
doi = "10.1016/j.enmm.2022.100720"
}

Pedrosa, M., Ribeiroa, R. S., Guerra-Rodríguez, S., Rodríguez-Chuecac, J., Rodríguez, E., Silva, A. M.T., Đolić, M.,& Lado Ribeiro, A. R.. (2022). Spirulina-based carbon bio-sorbent for the efficient removal of metoprolol, diclofenac and other micropollutants from wastewater. in Environmental Nanotechnology, Monitoring & Management
Elsevier., 18, 100720.
https://doi.org/10.1016/j.enmm.2022.100720

Pedrosa M, Ribeiroa RS, Guerra-Rodríguez S, Rodríguez-Chuecac J, Rodríguez E, Silva AM, Đolić M, Lado Ribeiro AR. Spirulina-based carbon bio-sorbent for the efficient removal of metoprolol, diclofenac and other micropollutants from wastewater. in Environmental Nanotechnology, Monitoring & Management. 2022;18:100720.
doi:10.1016/j.enmm.2022.100720 .

Pedrosa, Marta, Ribeiroa, Rui S., Guerra-Rodríguez, Sonia, Rodríguez-Chuecac, Jorge, Rodríguez, Encarnación, Silva, Adrián M.T., Đolić, Maja, Lado Ribeiro, Ana Rita, "Spirulina-based carbon bio-sorbent for the efficient removal of metoprolol, diclofenac and other micropollutants from wastewater" in Environmental Nanotechnology, Monitoring & Management, 18 (2022):100720,
https://doi.org/10.1016/j.enmm.2022.100720 . .

TY  - JOUR
AU  - Đolić, Maja
AU  - Ćujić, Mirjana
AU  - Stanišić, Tijana
AU  - Živojinović, Dragana
AU  - Ristić, Mirjana
AU  - Perić Grujić, Aleksandra
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5518
AB  - The Republic of Serbia generates the majority of its electricity at the thermal power plants (TE) Nikola Tesla, Kolubara, and Kostolac. Coal is extracted from the Kolubara basin, which produces approximately 70% of lignite (an average of 30 million tons per year), and the Kostolac basin, which produces 30% of lignite. Ash, fly ash, and slag are examples of coal combustion residues. Because of the high content of potentially hazardous elements such as As, Pb, Cd, and Cr, environmental pollution with ash and fly ash has been extensively researched. Stable isotopes of lead can be used to trace lead sources. It is possible to monitor the presence, transformation pathways, and environmental impact of Pb by determining its isotopic composition in coal and fly ash. For the first time, the isotopic composition of selected coal samples from the Kolubara and Kostolac mines, as well as fly ash from the Kolubara (A and B), Kostolac (A and B), and Nikola Tesla (TENT A3, A2, B2) thermal power plants, was investigated in this study. The obtained data for 206Pb/207Pb in coal serve as the foundation for ranking domestic coals, whereas the isotopic ratios 206Pb/207Pb and 208Pb/207Pb  in fly ash can be used to monitor and control lead pollution from investigated sources.
PB  - The Netherlands Press
T2  - Metallurgical and Materials Engineering
T1  - Contribution to the Serbian coal ranking and fly ash characterization using Pb isotopic ratio
EP  - 684
IS  - 4
SP  - 675
VL  - 28
DO  - 10.56801/MME931
ER  - 

@article{
author = "Đolić, Maja and Ćujić, Mirjana and Stanišić, Tijana and Živojinović, Dragana and Ristić, Mirjana and Perić Grujić, Aleksandra",
year = "2022",
abstract = "The Republic of Serbia generates the majority of its electricity at the thermal power plants (TE) Nikola Tesla, Kolubara, and Kostolac. Coal is extracted from the Kolubara basin, which produces approximately 70% of lignite (an average of 30 million tons per year), and the Kostolac basin, which produces 30% of lignite. Ash, fly ash, and slag are examples of coal combustion residues. Because of the high content of potentially hazardous elements such as As, Pb, Cd, and Cr, environmental pollution with ash and fly ash has been extensively researched. Stable isotopes of lead can be used to trace lead sources. It is possible to monitor the presence, transformation pathways, and environmental impact of Pb by determining its isotopic composition in coal and fly ash. For the first time, the isotopic composition of selected coal samples from the Kolubara and Kostolac mines, as well as fly ash from the Kolubara (A and B), Kostolac (A and B), and Nikola Tesla (TENT A3, A2, B2) thermal power plants, was investigated in this study. The obtained data for 206Pb/207Pb in coal serve as the foundation for ranking domestic coals, whereas the isotopic ratios 206Pb/207Pb and 208Pb/207Pb  in fly ash can be used to monitor and control lead pollution from investigated sources.",
publisher = "The Netherlands Press",
journal = "Metallurgical and Materials Engineering",
title = "Contribution to the Serbian coal ranking and fly ash characterization using Pb isotopic ratio",
pages = "684-675",
number = "4",
volume = "28",
doi = "10.56801/MME931"
}

Đolić, M., Ćujić, M., Stanišić, T., Živojinović, D., Ristić, M.,& Perić Grujić, A.. (2022). Contribution to the Serbian coal ranking and fly ash characterization using Pb isotopic ratio. in Metallurgical and Materials Engineering
The Netherlands Press., 28(4), 675-684.
https://doi.org/10.56801/MME931

Đolić M, Ćujić M, Stanišić T, Živojinović D, Ristić M, Perić Grujić A. Contribution to the Serbian coal ranking and fly ash characterization using Pb isotopic ratio. in Metallurgical and Materials Engineering. 2022;28(4):675-684.
doi:10.56801/MME931 .

Đolić, Maja, Ćujić, Mirjana, Stanišić, Tijana, Živojinović, Dragana, Ristić, Mirjana, Perić Grujić, Aleksandra, "Contribution to the Serbian coal ranking and fly ash characterization using Pb isotopic ratio" in Metallurgical and Materials Engineering, 28, no. 4 (2022):675-684,
https://doi.org/10.56801/MME931 . .

TY  - CONF
AU  - Stanišić, Tijana
AU  - Đolić, Maja
AU  - Ristić, Mirjana
AU  - Perić Grujić, Aleksandra
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6051
AB  - In this study, the adsorption capacity and removal efficiency of lead using various metal-oxide materials from aqueous solution have been analyzed. Two SiO2-based materials, natural (loam) and synthesized (metal-oxide heterostructures – MOH) were investigated. The characterization of these samples was performed using X-ray powder diffraction (XRD) and Fourier-transform infrared spectroscopy (FTIR). Adsorption tests were performed in a batch system by varying the mass of tested materials. The highest adsorption capacity for Pb2+ was achieved using 5 mg of MOH (166.6 µg g-1), while the removal efficiency using the optimal mass (10 mg) of MOH and loam was 99.3 and 94.2 %, respectively. Based on the obtained results, it was concluded that the synthetic material has higher adsorption capacity and removal efficiency than the natural material for the selected ion.
PB  - Society of Physical Chemists of Serbia
C3  - PHYSICAL CHEMISTRY 2022, 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry (Proceedings)
T1  - COMPARATIVE ANALYSIS OF Pb2+ SEPARATION USING NATURAL AND SYNTHETIC SILICATE MATERIALS
EP  - 468
SP  - 465
VL  - II
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6051
ER  - 

@conference{
author = "Stanišić, Tijana and Đolić, Maja and Ristić, Mirjana and Perić Grujić, Aleksandra",
year = "2022",
abstract = "In this study, the adsorption capacity and removal efficiency of lead using various metal-oxide materials from aqueous solution have been analyzed. Two SiO2-based materials, natural (loam) and synthesized (metal-oxide heterostructures – MOH) were investigated. The characterization of these samples was performed using X-ray powder diffraction (XRD) and Fourier-transform infrared spectroscopy (FTIR). Adsorption tests were performed in a batch system by varying the mass of tested materials. The highest adsorption capacity for Pb2+ was achieved using 5 mg of MOH (166.6 µg g-1), while the removal efficiency using the optimal mass (10 mg) of MOH and loam was 99.3 and 94.2 %, respectively. Based on the obtained results, it was concluded that the synthetic material has higher adsorption capacity and removal efficiency than the natural material for the selected ion.",
publisher = "Society of Physical Chemists of Serbia",
journal = "PHYSICAL CHEMISTRY 2022, 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry (Proceedings)",
title = "COMPARATIVE ANALYSIS OF Pb2+ SEPARATION USING NATURAL AND SYNTHETIC SILICATE MATERIALS",
pages = "468-465",
volume = "II",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6051"
}

Stanišić, T., Đolić, M., Ristić, M.,& Perić Grujić, A.. (2022). COMPARATIVE ANALYSIS OF Pb2+ SEPARATION USING NATURAL AND SYNTHETIC SILICATE MATERIALS. in PHYSICAL CHEMISTRY 2022, 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry (Proceedings)
Society of Physical Chemists of Serbia., II, 465-468.
https://hdl.handle.net/21.15107/rcub_technorep_6051

Stanišić T, Đolić M, Ristić M, Perić Grujić A. COMPARATIVE ANALYSIS OF Pb2+ SEPARATION USING NATURAL AND SYNTHETIC SILICATE MATERIALS. in PHYSICAL CHEMISTRY 2022, 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry (Proceedings). 2022;II:465-468.
https://hdl.handle.net/21.15107/rcub_technorep_6051 .

Stanišić, Tijana, Đolić, Maja, Ristić, Mirjana, Perić Grujić, Aleksandra, "COMPARATIVE ANALYSIS OF Pb2+ SEPARATION USING NATURAL AND SYNTHETIC SILICATE MATERIALS" in PHYSICAL CHEMISTRY 2022, 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry (Proceedings), II (2022):465-468,
https://hdl.handle.net/21.15107/rcub_technorep_6051 .

TY  - JOUR
AU  - Stanišić, Tijana
AU  - Đolić, Maja
AU  - Ćujić, Mirjana
AU  - Ristić, Mirjana
AU  - Perić Grujić, Aleksandra
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6057
AB  - This study investigated the use of different natural raw soil materials as low-cost adsorbents for
the removal to remove As(V) and Pb(II) from aqueous systems. It deals with the effect of different soil textures, sandy loam, loam, and loamy sand, on adsorption efficiency. Fourier-transform
infrared spectroscopy (FTIR) was used to carry out the comprehensive characterization of
materials, as well as scanning electron microscopy (SEM), X-ray diffraction (XRD), and liquid
nitrogen porosimetry or the Brunauer–Emmett–Teller (BET). Studies were performed in a batch
system; the initial concentration of examined heavy metals was 100 μg·L–1, pH varied in the range
of 4–6, and the adsorbent dosage was 5–20 mg/10 mL. Sandy loam was the most efficient adsorbent for As(V) separation, with a maximum removal efficiency of 47.5%, while the loam was the
most efficient for Pb(II) separation, with a maximum removal efficiency of 94.2%. The removal
efficiency was affected mainly by the adsorbent characteristics. Performed kinetic studies revealed
two steps of adsorption for both investigated ions. Obtained results indicate that natural sorbents
used in this work present environmentally sustainable material for As(V) and Pb(II) removal,
on the one hand, and the basis for further studies on the simultaneous removal of heavy metals
from water and their reduced mobility in soil, on the other.
PB  - Desalination Publications
T2  - Desalination and Water Treatment
T1  - Disparate soil textures as a native medium for As(V) and Pb(II) separation from aqueous systems
EP  - 202
IS  - 190
VL  - 273
DO  - 10.5004/dwt.2022.28889
ER  - 

@article{
author = "Stanišić, Tijana and Đolić, Maja and Ćujić, Mirjana and Ristić, Mirjana and Perić Grujić, Aleksandra",
year = "2022",
abstract = "This study investigated the use of different natural raw soil materials as low-cost adsorbents for
the removal to remove As(V) and Pb(II) from aqueous systems. It deals with the effect of different soil textures, sandy loam, loam, and loamy sand, on adsorption efficiency. Fourier-transform
infrared spectroscopy (FTIR) was used to carry out the comprehensive characterization of
materials, as well as scanning electron microscopy (SEM), X-ray diffraction (XRD), and liquid
nitrogen porosimetry or the Brunauer–Emmett–Teller (BET). Studies were performed in a batch
system; the initial concentration of examined heavy metals was 100 μg·L–1, pH varied in the range
of 4–6, and the adsorbent dosage was 5–20 mg/10 mL. Sandy loam was the most efficient adsorbent for As(V) separation, with a maximum removal efficiency of 47.5%, while the loam was the
most efficient for Pb(II) separation, with a maximum removal efficiency of 94.2%. The removal
efficiency was affected mainly by the adsorbent characteristics. Performed kinetic studies revealed
two steps of adsorption for both investigated ions. Obtained results indicate that natural sorbents
used in this work present environmentally sustainable material for As(V) and Pb(II) removal,
on the one hand, and the basis for further studies on the simultaneous removal of heavy metals
from water and their reduced mobility in soil, on the other.",
publisher = "Desalination Publications",
journal = "Desalination and Water Treatment",
title = "Disparate soil textures as a native medium for As(V) and Pb(II) separation from aqueous systems",
pages = "202",
number = "190",
volume = "273",
doi = "10.5004/dwt.2022.28889"
}

Stanišić, T., Đolić, M., Ćujić, M., Ristić, M.,& Perić Grujić, A.. (2022). Disparate soil textures as a native medium for As(V) and Pb(II) separation from aqueous systems. in Desalination and Water Treatment
Desalination Publications., 273(190).
https://doi.org/10.5004/dwt.2022.28889

Stanišić T, Đolić M, Ćujić M, Ristić M, Perić Grujić A. Disparate soil textures as a native medium for As(V) and Pb(II) separation from aqueous systems. in Desalination and Water Treatment. 2022;273(190):null-202.
doi:10.5004/dwt.2022.28889 .

Stanišić, Tijana, Đolić, Maja, Ćujić, Mirjana, Ristić, Mirjana, Perić Grujić, Aleksandra, "Disparate soil textures as a native medium for As(V) and Pb(II) separation from aqueous systems" in Desalination and Water Treatment, 273, no. 190 (2022),
https://doi.org/10.5004/dwt.2022.28889 . .

TY  - CONF
AU  - Jovanović, Aleksandar
AU  - Knežević, Nataša
AU  - Čutović, Natalija
AU  - Đolić, Maja
AU  - Prlainović, Nevena
AU  - Veličković, Zlate
AU  - Vuksanović, Marija M.
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6029
AB  - Management of waste polymers (polyethylene - PE and polypropylene - PP) represents one of the major obstacles in the field of environmental protection, which demands a most efficient and eco-friendly technological solution. Due to the high use of various plastic materials, the amount of landfilled or dissipated plastic waste is continuously growing. Therefore, this paper examines the possibilities of recycling these polymers, alongside obtaining granules of similar or advanced physico-mechanical characteristics to the commercially available ones. The applied technology consists of several consecutive processes (collecting, grinding, washing and extruding) where the obtained materials can later be incorporated into widely applicable products, such as foils, bin liners, bags, among others. In this way, high-quality products with great market potential are obtained, which will consequently contribute to lower extraction and less depletion of natural resources. Thus major problems may be solved optimally, consolidating the efficiency of improved eco-friendly technologies which is in line with environmental protection and sustainable waste management.
PB  - University of Belgrade, Technical Faculty in Bor
C3  - 29th International Conference Ecological Truth and Environmental Research – EcoTER’22" Sokobanja, June 21-24, 2022
T1  - Improved technology for production of PE and PP regranulates
EP  - 189
SP  - 186
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10673
ER  - 

@conference{
author = "Jovanović, Aleksandar and Knežević, Nataša and Čutović, Natalija and Đolić, Maja and Prlainović, Nevena and Veličković, Zlate and Vuksanović, Marija M.",
year = "2022",
abstract = "Management of waste polymers (polyethylene - PE and polypropylene - PP) represents one of the major obstacles in the field of environmental protection, which demands a most efficient and eco-friendly technological solution. Due to the high use of various plastic materials, the amount of landfilled or dissipated plastic waste is continuously growing. Therefore, this paper examines the possibilities of recycling these polymers, alongside obtaining granules of similar or advanced physico-mechanical characteristics to the commercially available ones. The applied technology consists of several consecutive processes (collecting, grinding, washing and extruding) where the obtained materials can later be incorporated into widely applicable products, such as foils, bin liners, bags, among others. In this way, high-quality products with great market potential are obtained, which will consequently contribute to lower extraction and less depletion of natural resources. Thus major problems may be solved optimally, consolidating the efficiency of improved eco-friendly technologies which is in line with environmental protection and sustainable waste management.",
publisher = "University of Belgrade, Technical Faculty in Bor",
journal = "29th International Conference Ecological Truth and Environmental Research – EcoTER’22" Sokobanja, June 21-24, 2022",
title = "Improved technology for production of PE and PP regranulates",
pages = "189-186",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10673"
}

Jovanović, A., Knežević, N., Čutović, N., Đolić, M., Prlainović, N., Veličković, Z.,& Vuksanović, M. M.. (2022). Improved technology for production of PE and PP regranulates. in 29th International Conference Ecological Truth and Environmental Research – EcoTER’22" Sokobanja, June 21-24, 2022
University of Belgrade, Technical Faculty in Bor., 186-189.
https://hdl.handle.net/21.15107/rcub_vinar_10673

Jovanović A, Knežević N, Čutović N, Đolić M, Prlainović N, Veličković Z, Vuksanović MM. Improved technology for production of PE and PP regranulates. in 29th International Conference Ecological Truth and Environmental Research – EcoTER’22" Sokobanja, June 21-24, 2022. 2022;:186-189.
https://hdl.handle.net/21.15107/rcub_vinar_10673 .

Jovanović, Aleksandar, Knežević, Nataša, Čutović, Natalija, Đolić, Maja, Prlainović, Nevena, Veličković, Zlate, Vuksanović, Marija M., "Improved technology for production of PE and PP regranulates" in 29th International Conference Ecological Truth and Environmental Research – EcoTER’22" Sokobanja, June 21-24, 2022 (2022):186-189,
https://hdl.handle.net/21.15107/rcub_vinar_10673 .

TY  - CONF
AU  - Karić, Nataša
AU  - Stanišić, Tijana
AU  - Đolić, Maja
AU  - Vukčević, Marija
AU  - Ristić, Mirjana
AU  - Perić-Grujić, Aleksandra
AU  - Marinković, Aleksandar
AU  - Trivunac, Katarina
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6083
AB  - Cilj rada bio je razvijanje jednostavnog i ekološki prihvatljivog načina pripreme katjonski modifikovanog skroba sa katjonskim reagensima, glicidiltrimetilamonijum hloridom (GTMAH) i betain
hidrohloridom (BHH), bez upotrebe organskih rastvarača. Takođe, proučavani su i uslovi reakcije
kao što su reakciona temperatura, koncentracija katjonskih reagenasa, prisustvo i koncentracija katalizatora i prirodnog plastifikatora u strukturi materijala. Strukturna karakterizacija katjonskih
skrobova izvršena je upotrebom Furijeove infracrvene (FTIR) spektroskopije i skenirajuće elektronske mikroskopije (SEM). Svojstva materijala kao što su stepen katjonizacije, viskoznost, kapacitet
bubrenja i rastvorljivost određena su prema standardnim metodama. Stepen katjonizacije pripremljenih katjonskih skrobova varirao je od 0,048-0,162 mmol g-1 za uzorke sa GTMAH i od 0,032-0,156
mmol g-1 za uzorke sa BHH. FTIR i SEM karakterizacija potvrdila je da je ugradnja katjonskog dela
u strukturu skroba bila uspešna.
AB  - In this study, a simple and eco-efficient way to prepare cationized modified starch with cationic
reactants, such as glycidyltrimethylammonium chloride (GTMAC) and betaine hydrochloride (BHC),
without using an organic solvents was developed. The processing conditions such as reaction temperature, concentration of cationic reagents, presence and concentration of catalyst and natural plasticizer within the material structure were also studied. The structure of cationic starch derivatives was
characterized by using Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM). The properties of materials such as cationic degree, viscosity, swelling capacity,
solubility and moisture content were determined according to standard methods. The degree of cationization of the prepared cationic starches varied from 0.048 to 0.162 mmol g-1for samples with
GTMAC and from 0.032 to 0.156 mmol g-1for samples with BHC. The FTIR and SEM characterization showed that incorporation of a cationic moiety onto the backbone of the starch was successful.
PB  - Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS), Društvo za procesnu tehniku
C3  - 34. Međunarodni kongres o procesnoj industriji - Procesing '21
T1  - Sinteza i karakterizacija katjonskog skroba za primenu u tretmanu otpadnih voda
T1  - Synthesis and characterization of cationic starch for application in the wastewater treatment
EP  - 54
SP  - 49
DO  - 10.24094/ptk.021.34.1.49
ER  - 

@conference{
author = "Karić, Nataša and Stanišić, Tijana and Đolić, Maja and Vukčević, Marija and Ristić, Mirjana and Perić-Grujić, Aleksandra and Marinković, Aleksandar and Trivunac, Katarina",
year = "2021",
abstract = "Cilj rada bio je razvijanje jednostavnog i ekološki prihvatljivog načina pripreme katjonski modifikovanog skroba sa katjonskim reagensima, glicidiltrimetilamonijum hloridom (GTMAH) i betain
hidrohloridom (BHH), bez upotrebe organskih rastvarača. Takođe, proučavani su i uslovi reakcije
kao što su reakciona temperatura, koncentracija katjonskih reagenasa, prisustvo i koncentracija katalizatora i prirodnog plastifikatora u strukturi materijala. Strukturna karakterizacija katjonskih
skrobova izvršena je upotrebom Furijeove infracrvene (FTIR) spektroskopije i skenirajuće elektronske mikroskopije (SEM). Svojstva materijala kao što su stepen katjonizacije, viskoznost, kapacitet
bubrenja i rastvorljivost određena su prema standardnim metodama. Stepen katjonizacije pripremljenih katjonskih skrobova varirao je od 0,048-0,162 mmol g-1 za uzorke sa GTMAH i od 0,032-0,156
mmol g-1 za uzorke sa BHH. FTIR i SEM karakterizacija potvrdila je da je ugradnja katjonskog dela
u strukturu skroba bila uspešna., In this study, a simple and eco-efficient way to prepare cationized modified starch with cationic
reactants, such as glycidyltrimethylammonium chloride (GTMAC) and betaine hydrochloride (BHC),
without using an organic solvents was developed. The processing conditions such as reaction temperature, concentration of cationic reagents, presence and concentration of catalyst and natural plasticizer within the material structure were also studied. The structure of cationic starch derivatives was
characterized by using Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM). The properties of materials such as cationic degree, viscosity, swelling capacity,
solubility and moisture content were determined according to standard methods. The degree of cationization of the prepared cationic starches varied from 0.048 to 0.162 mmol g-1for samples with
GTMAC and from 0.032 to 0.156 mmol g-1for samples with BHC. The FTIR and SEM characterization showed that incorporation of a cationic moiety onto the backbone of the starch was successful.",
publisher = "Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS), Društvo za procesnu tehniku",
journal = "34. Međunarodni kongres o procesnoj industriji - Procesing '21",
title = "Sinteza i karakterizacija katjonskog skroba za primenu u tretmanu otpadnih voda, Synthesis and characterization of cationic starch for application in the wastewater treatment",
pages = "54-49",
doi = "10.24094/ptk.021.34.1.49"
}

Karić, N., Stanišić, T., Đolić, M., Vukčević, M., Ristić, M., Perić-Grujić, A., Marinković, A.,& Trivunac, K.. (2021). Sinteza i karakterizacija katjonskog skroba za primenu u tretmanu otpadnih voda. in 34. Međunarodni kongres o procesnoj industriji - Procesing '21
Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS), Društvo za procesnu tehniku., 49-54.
https://doi.org/10.24094/ptk.021.34.1.49

Karić N, Stanišić T, Đolić M, Vukčević M, Ristić M, Perić-Grujić A, Marinković A, Trivunac K. Sinteza i karakterizacija katjonskog skroba za primenu u tretmanu otpadnih voda. in 34. Međunarodni kongres o procesnoj industriji - Procesing '21. 2021;:49-54.
doi:10.24094/ptk.021.34.1.49 .

Karić, Nataša, Stanišić, Tijana, Đolić, Maja, Vukčević, Marija, Ristić, Mirjana, Perić-Grujić, Aleksandra, Marinković, Aleksandar, Trivunac, Katarina, "Sinteza i karakterizacija katjonskog skroba za primenu u tretmanu otpadnih voda" in 34. Međunarodni kongres o procesnoj industriji - Procesing '21 (2021):49-54,
https://doi.org/10.24094/ptk.021.34.1.49 . .

TY  - JOUR
AU  - Đolić, Maja
AU  - Karanac, Milica
AU  - Radovanović, Dragana
AU  - Umićević, Ana
AU  - Kapidžić, Ana
AU  - Veličković, Zlate
AU  - Marinković, Aleksandar
AU  - Kamberović, Željko
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4916
AB  - Fly and bottom ash(es) are the most abundant generated by-products of coal combustion in thermal power plants. This investigation offers a sustainable solution of a double and circular use of industrial waste material in civil engineering practices; i.e., fly ash (FA) as an eco-efficiently, low-cost material for As(V) adsorption, as well as an additive in building materials. A goethite impregnated sample (FAG) was synthesized and optimized using the column precipitation procedure, then thoroughly, structurally and morphologically characterized using liquid nitrogen porosimetry (BET), X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM) and Mossbauer spectroscopy (MS) techniques. The data from the equilibrium adsorption were fitted by linear and non-linear isotherm models; the optimal capacity of FAG/As(V) removal was calculated from the Langmuir model at 31.742 mg g(-1) for 45 degrees C. The kinetics of adsorption process has shown the pseudo-second-order kinetic model (PSO). The Weber-Morris model was applied to determine the intra-particle diffusion as a limiting step of reaction. The low pH dependant FAG leaching confirmed the efficient use of non-hazardous waste material in arsenic removal; furthermore, it also validated the new added value of the used/spent adsorbent as an adhesive in building materials possessing advanced mechanical properties.
T2  - Journal of Cleaner Production
T1  - Closing the loop: As(V) adsorption onto goethite impregnated coal-combustion fly ash as integral building materials
VL  - 303
DO  - 10.1016/j.jclepro.2021.126924
ER  - 

@article{
author = "Đolić, Maja and Karanac, Milica and Radovanović, Dragana and Umićević, Ana and Kapidžić, Ana and Veličković, Zlate and Marinković, Aleksandar and Kamberović, Željko",
year = "2021",
abstract = "Fly and bottom ash(es) are the most abundant generated by-products of coal combustion in thermal power plants. This investigation offers a sustainable solution of a double and circular use of industrial waste material in civil engineering practices; i.e., fly ash (FA) as an eco-efficiently, low-cost material for As(V) adsorption, as well as an additive in building materials. A goethite impregnated sample (FAG) was synthesized and optimized using the column precipitation procedure, then thoroughly, structurally and morphologically characterized using liquid nitrogen porosimetry (BET), X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM) and Mossbauer spectroscopy (MS) techniques. The data from the equilibrium adsorption were fitted by linear and non-linear isotherm models; the optimal capacity of FAG/As(V) removal was calculated from the Langmuir model at 31.742 mg g(-1) for 45 degrees C. The kinetics of adsorption process has shown the pseudo-second-order kinetic model (PSO). The Weber-Morris model was applied to determine the intra-particle diffusion as a limiting step of reaction. The low pH dependant FAG leaching confirmed the efficient use of non-hazardous waste material in arsenic removal; furthermore, it also validated the new added value of the used/spent adsorbent as an adhesive in building materials possessing advanced mechanical properties.",
journal = "Journal of Cleaner Production",
title = "Closing the loop: As(V) adsorption onto goethite impregnated coal-combustion fly ash as integral building materials",
volume = "303",
doi = "10.1016/j.jclepro.2021.126924"
}

Đolić, M., Karanac, M., Radovanović, D., Umićević, A., Kapidžić, A., Veličković, Z., Marinković, A.,& Kamberović, Ž.. (2021). Closing the loop: As(V) adsorption onto goethite impregnated coal-combustion fly ash as integral building materials. in Journal of Cleaner Production, 303.
https://doi.org/10.1016/j.jclepro.2021.126924

Đolić M, Karanac M, Radovanović D, Umićević A, Kapidžić A, Veličković Z, Marinković A, Kamberović Ž. Closing the loop: As(V) adsorption onto goethite impregnated coal-combustion fly ash as integral building materials. in Journal of Cleaner Production. 2021;303.
doi:10.1016/j.jclepro.2021.126924 .

Đolić, Maja, Karanac, Milica, Radovanović, Dragana, Umićević, Ana, Kapidžić, Ana, Veličković, Zlate, Marinković, Aleksandar, Kamberović, Željko, "Closing the loop: As(V) adsorption onto goethite impregnated coal-combustion fly ash as integral building materials" in Journal of Cleaner Production, 303 (2021),
https://doi.org/10.1016/j.jclepro.2021.126924 . .

TY  - CONF
AU  - Stanišić, Tijana
AU  - Karić, Nataša
AU  - Karanac, Milica
AU  - Đolić, Maja
AU  - Ristić, Mirjana
AU  - Perić-Grujić, Aleksandra
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6115
AB  - U ovom radu ispitana su adsorpciona svojstva tri prirodna mineralna materijala za uklanjanje
Pb(II) i As(V) jona iz vodenih rastvora. Sveobuhvatna strukturna analiza pokazala je glavne mineralne komponente, SiO2, Al2O3 i Fe2O3, a najveći udeo u sastavu ovih materijala imaju kvarc, mikrolin
i kaolinit. Optimalni uslovi su utvrđeni na osnovu rezultata dosadašnjih istraživanja i variranjem mase
ispitivanih adsorbenata. Rezultati su pokazali da sa povećanjem mase materijala raste efikasnost uklanjanja jona , sve do optimalnog odnosa (m:V=1:1), nakon čega je efikasnost uklanjanja zanemarljiva.
Najbolju efikasnost uklanjanja, pri optimalnim uslovima, pokazao je materijal čija je glavna tekstura
ilovača (94,8 %) pri uklanjanju Pb(II) jona i materijal čija je glavna tekstura peskovita ilovača (47,5
%) pri separaciji As(V) jona. Dalja ispitivanja će biti usmerena na ispitivanje simultanog izdvajanja
odabranih jona, kao i na određivanje adsorpcionih izotermi, kinetičkih i termodinamičkih parametara procesa adsorpcije, mogućnosti regeneracije upotrebljenih adsorbenata, kao i njihove ponovne upotrebe
ili bezbednog zbrinjavanja, nakon adsorpcije.
AB  - The aim of this research is to examine the efficiency of raw mineral materials that possess good
adsorption and techno-economic properties applicable in real systems for the removal of heavy metal
ions, primarily lead and arsenic. The adsorption studies were conducted in batch system. To determine the optimal conditions, the adsorption efficiency of the selected ions was tested by variation of
the adsorbents mass (5, 7.5, 10 and 20 mg). The materials used in the experimental work are of
mineral origin, whose composition consists mainly of SiO2, Al2O3 and Fe2O3. The characterization
of analyzed materials was performed using X-Ray Diffraction (XRD), Fourier-Transform Infrared
Spectroscopy (FTIR) and scanning electron microscopy (SEM). The maximum removal efficiency of
lead ions is 94.8 %, on the material predominantly composed of loam, while for arsenic it is 47.5 %
on material based on sandy loam.
PB  - Departman za energetiku i procesnu tehniku - FTN
C3  - Međunarodni kongres o procesnoj industriji - Procesing '21
T1  - Prirodni adsorbenti na bazi metalnih oksida za uklanjanje jona olova i arsena iz vodenih rastvora
DO  - 10.24094/ptk.021.34.1.43
ER  - 

@conference{
author = "Stanišić, Tijana and Karić, Nataša and Karanac, Milica and Đolić, Maja and Ristić, Mirjana and Perić-Grujić, Aleksandra",
year = "2021",
abstract = "U ovom radu ispitana su adsorpciona svojstva tri prirodna mineralna materijala za uklanjanje
Pb(II) i As(V) jona iz vodenih rastvora. Sveobuhvatna strukturna analiza pokazala je glavne mineralne komponente, SiO2, Al2O3 i Fe2O3, a najveći udeo u sastavu ovih materijala imaju kvarc, mikrolin
i kaolinit. Optimalni uslovi su utvrđeni na osnovu rezultata dosadašnjih istraživanja i variranjem mase
ispitivanih adsorbenata. Rezultati su pokazali da sa povećanjem mase materijala raste efikasnost uklanjanja jona , sve do optimalnog odnosa (m:V=1:1), nakon čega je efikasnost uklanjanja zanemarljiva.
Najbolju efikasnost uklanjanja, pri optimalnim uslovima, pokazao je materijal čija je glavna tekstura
ilovača (94,8 %) pri uklanjanju Pb(II) jona i materijal čija je glavna tekstura peskovita ilovača (47,5
%) pri separaciji As(V) jona. Dalja ispitivanja će biti usmerena na ispitivanje simultanog izdvajanja
odabranih jona, kao i na određivanje adsorpcionih izotermi, kinetičkih i termodinamičkih parametara procesa adsorpcije, mogućnosti regeneracije upotrebljenih adsorbenata, kao i njihove ponovne upotrebe
ili bezbednog zbrinjavanja, nakon adsorpcije., The aim of this research is to examine the efficiency of raw mineral materials that possess good
adsorption and techno-economic properties applicable in real systems for the removal of heavy metal
ions, primarily lead and arsenic. The adsorption studies were conducted in batch system. To determine the optimal conditions, the adsorption efficiency of the selected ions was tested by variation of
the adsorbents mass (5, 7.5, 10 and 20 mg). The materials used in the experimental work are of
mineral origin, whose composition consists mainly of SiO2, Al2O3 and Fe2O3. The characterization
of analyzed materials was performed using X-Ray Diffraction (XRD), Fourier-Transform Infrared
Spectroscopy (FTIR) and scanning electron microscopy (SEM). The maximum removal efficiency of
lead ions is 94.8 %, on the material predominantly composed of loam, while for arsenic it is 47.5 %
on material based on sandy loam.",
publisher = "Departman za energetiku i procesnu tehniku - FTN",
journal = "Međunarodni kongres o procesnoj industriji - Procesing '21",
title = "Prirodni adsorbenti na bazi metalnih oksida za uklanjanje jona olova i arsena iz vodenih rastvora",
doi = "10.24094/ptk.021.34.1.43"
}

Stanišić, T., Karić, N., Karanac, M., Đolić, M., Ristić, M.,& Perić-Grujić, A.. (2021). Prirodni adsorbenti na bazi metalnih oksida za uklanjanje jona olova i arsena iz vodenih rastvora. in Međunarodni kongres o procesnoj industriji - Procesing '21
Departman za energetiku i procesnu tehniku - FTN..
https://doi.org/10.24094/ptk.021.34.1.43

Stanišić T, Karić N, Karanac M, Đolić M, Ristić M, Perić-Grujić A. Prirodni adsorbenti na bazi metalnih oksida za uklanjanje jona olova i arsena iz vodenih rastvora. in Međunarodni kongres o procesnoj industriji - Procesing '21. 2021;.
doi:10.24094/ptk.021.34.1.43 .

Stanišić, Tijana, Karić, Nataša, Karanac, Milica, Đolić, Maja, Ristić, Mirjana, Perić-Grujić, Aleksandra, "Prirodni adsorbenti na bazi metalnih oksida za uklanjanje jona olova i arsena iz vodenih rastvora" in Međunarodni kongres o procesnoj industriji - Procesing '21 (2021),
https://doi.org/10.24094/ptk.021.34.1.43 . .

TY  - CONF
AU  - Stanišić, Tijana
AU  - Đolić, Maja
AU  - Perić-Grujić, Aleksandra
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6310
AB  - The aim of this research was to investigate As(V) and Pb(II) adsorption behaviour onto mineral heterostructures based on the mixture of Si and Ti-oxides (MHO). Heavy metals are discharged into water bodies from various industries which cause environmental pollution and public health problems due to their toxicity, persistence, high solubility, and mobility [1]. The conventional methods of heavy metal decontamination include chemical precipitation, ion exchange, membrane separation and reverse osmosis [2]. However, the adsorption process for heavy metals removal has been investigated as a cost-effective method, usually easy to manage, maintain and consolidate within the entire wastewater treatment plant. The metal-oxide heterostructures with a high surface area and specific affinity for heavy metals adsorption from aqueous solutions have demonstrated a promising performance in practical engineering applications [3]. The most common hybrid adsorbents are consisted of metal-oxides combinations such as: iron oxides (maghemite: γ-Fe2O3, hematite: α-Fe2O3, magnetite: Fe3O4, goethite: α-FeOOH), manganese oxide (α-MnO2), zinc oxide (ZnO), titanium oxide (TiO2), aluminum oxide (γ-Al2O3), magnesium oxide (MgO) and cerium oxide (CeO2) [4-6]. In this study, synthesized SiO2 and TiO2-hybrid material for removal of As(V) and Pb(II) ions from aqueous solution was investigated. The adsorption experiment was conducted in a batch system, using the initial concentrations of 100 µg L-1, at appropriate pHi for selected ions (pHPb(II)=5 and pHAs(V)=6). The experimental optimization was performed by varying the parameters such as the mass of the adsorbent and pH of initial ion solution. The maximum removal efficiency of Pb(II) and As(V) was 99,8 and 52.2 %, respectively (experimental conditions: mads=10 mg, V=10 mL, t=24h and T=25 oC).
The characterization of MHO adsorbent was carried out using the following techniques: X-ray diffraction (XRD), gas adsorption/desorption isotherms (BET), scanning electron microscopy (SEM) and the Fourier-transform infrared spectroscopy (FTIR). XRD patterns of the MHO sample have shown that the main contribution originates from the diopside phase, CaMgSi2 O6 (84.0 wt. %), while the other oxide-contributions comprised of a hexagonal structure of titanium oxides
(anatase and rutile, in total 2.2 wt. %), and iron (titanium) oxides (hematite and titanomagnetite, in total 12.2 wt. %). The FTIR was used to analyze the functional groups present in MHO and recorded numerous vibrations and stretching of functional groups (dominantly Si-O-Si, Si-O-Al and Si-O-Ti bonds), which confirmed that the synthesized material consists of mineral oxides. The SEM analysis indicates a large number of uneven thin forms of nanoplatelets which is complementary confirmed by increased porosity and large surface size (SBET = 271.7 m2 g-1).
PB  - Serbian Chemical Society
C3  - 21st European Meeting on Environmental Chemistry, BOOK OF ABSTRACTS
T1  - SiO2  and TiO2 -Hybrid Material for Removal of As(V) and Pb(II) Ions from Aqueous Solution
SP  - 114
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6310
ER  - 

@conference{
author = "Stanišić, Tijana and Đolić, Maja and Perić-Grujić, Aleksandra",
year = "2021",
abstract = "The aim of this research was to investigate As(V) and Pb(II) adsorption behaviour onto mineral heterostructures based on the mixture of Si and Ti-oxides (MHO). Heavy metals are discharged into water bodies from various industries which cause environmental pollution and public health problems due to their toxicity, persistence, high solubility, and mobility [1]. The conventional methods of heavy metal decontamination include chemical precipitation, ion exchange, membrane separation and reverse osmosis [2]. However, the adsorption process for heavy metals removal has been investigated as a cost-effective method, usually easy to manage, maintain and consolidate within the entire wastewater treatment plant. The metal-oxide heterostructures with a high surface area and specific affinity for heavy metals adsorption from aqueous solutions have demonstrated a promising performance in practical engineering applications [3]. The most common hybrid adsorbents are consisted of metal-oxides combinations such as: iron oxides (maghemite: γ-Fe2O3, hematite: α-Fe2O3, magnetite: Fe3O4, goethite: α-FeOOH), manganese oxide (α-MnO2), zinc oxide (ZnO), titanium oxide (TiO2), aluminum oxide (γ-Al2O3), magnesium oxide (MgO) and cerium oxide (CeO2) [4-6]. In this study, synthesized SiO2 and TiO2-hybrid material for removal of As(V) and Pb(II) ions from aqueous solution was investigated. The adsorption experiment was conducted in a batch system, using the initial concentrations of 100 µg L-1, at appropriate pHi for selected ions (pHPb(II)=5 and pHAs(V)=6). The experimental optimization was performed by varying the parameters such as the mass of the adsorbent and pH of initial ion solution. The maximum removal efficiency of Pb(II) and As(V) was 99,8 and 52.2 %, respectively (experimental conditions: mads=10 mg, V=10 mL, t=24h and T=25 oC).
The characterization of MHO adsorbent was carried out using the following techniques: X-ray diffraction (XRD), gas adsorption/desorption isotherms (BET), scanning electron microscopy (SEM) and the Fourier-transform infrared spectroscopy (FTIR). XRD patterns of the MHO sample have shown that the main contribution originates from the diopside phase, CaMgSi2 O6 (84.0 wt. %), while the other oxide-contributions comprised of a hexagonal structure of titanium oxides
(anatase and rutile, in total 2.2 wt. %), and iron (titanium) oxides (hematite and titanomagnetite, in total 12.2 wt. %). The FTIR was used to analyze the functional groups present in MHO and recorded numerous vibrations and stretching of functional groups (dominantly Si-O-Si, Si-O-Al and Si-O-Ti bonds), which confirmed that the synthesized material consists of mineral oxides. The SEM analysis indicates a large number of uneven thin forms of nanoplatelets which is complementary confirmed by increased porosity and large surface size (SBET = 271.7 m2 g-1).",
publisher = "Serbian Chemical Society",
journal = "21st European Meeting on Environmental Chemistry, BOOK OF ABSTRACTS",
title = "SiO2  and TiO2 -Hybrid Material for Removal of As(V) and Pb(II) Ions from Aqueous Solution",
pages = "114",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6310"
}

Stanišić, T., Đolić, M.,& Perić-Grujić, A.. (2021). SiO2  and TiO2 -Hybrid Material for Removal of As(V) and Pb(II) Ions from Aqueous Solution. in 21st European Meeting on Environmental Chemistry, BOOK OF ABSTRACTS
Serbian Chemical Society., 114.
https://hdl.handle.net/21.15107/rcub_technorep_6310

Stanišić T, Đolić M, Perić-Grujić A. SiO2  and TiO2 -Hybrid Material for Removal of As(V) and Pb(II) Ions from Aqueous Solution. in 21st European Meeting on Environmental Chemistry, BOOK OF ABSTRACTS. 2021;:114.
https://hdl.handle.net/21.15107/rcub_technorep_6310 .

Stanišić, Tijana, Đolić, Maja, Perić-Grujić, Aleksandra, "SiO2  and TiO2 -Hybrid Material for Removal of As(V) and Pb(II) Ions from Aqueous Solution" in 21st European Meeting on Environmental Chemistry, BOOK OF ABSTRACTS (2021):114,
https://hdl.handle.net/21.15107/rcub_technorep_6310 .

TY  - CONF
AU  - Stanišić, Tijana
AU  - Đolić, Maja
AU  - Ćujić, Mirjana
AU  - Ristić, Mirjana
AU  - Perić-Grujić, Aleksandra
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6313
AB  - Olovo i arsen predstavljaju značajnu grupu neorganskih polutanata koji su prisutni u
životnoj sredini, pre svega u vodenim sistemima, pa je njihovo uklanjanje veliki tehničkotehnološki izazov. Zbog toga se sve više pažnje posvećuje razvoju pristupačnih, efikasnih i
ekološki prihvatljivih adsorbenata. Prirodni materijali na bazi oksida metala (SiO2, Al2O3,
Fe2O3), poput ilovače, predstavljaju efikasne adsorbente za uklanjanje katjonskih i anjonskih
vrsta iz vodenih rastvora. U ovom radu adsorpciona svojstva ilovače ispitivana su u šaržnom
sistemu, promenom pH vrednosti početnog rastvora, dok su masa adsorbenta, vreme i
temperature procesa bili konstantni. Značajnu ulogu u odvijanju adsorpcionog procesa ima pH
vrednost rastvora, stoga se eksperiment zasnivao na određivanju efikasnosti procesa pri vrednosti
pH rastvora 4, 5 i 6. Strukturne karakteristike ilovače su određene primenom rendgenske
difrakcione analize (engl. X-Ray Difraction, XRD), infracrvenom spektroskopijom sa Furijeovom
transformacijom (engl. Fourier-Transform Infrared Spectroscopy, FTIR) i skenirajuće elektronske
mikroskopije (engl. Scanning electron microscopy, SEM). Koncentracija jona nakon procesa
adsorpcije određena je pomoću indukovano spregnute plazme sa masenom spektrometrijom (engl.
Inductively Coupled Plasma Mass Spectrometry, ICP-MS). Maksimalna efikasnost uklanjanja
jona olova postignuta je na pH vrednosti 5 (94,2 %), dok je za jone arsena optimalna pH vrednost
bila 6 (35,1 %).
AB  - Lead and arsenic represent an important group of inorganic pollutants that can be found in the environment, primarily in aquatic systems. Their removal from water systems is a big environmental problem, but also a significant technological challenge. Therefore, an increasing attention is paid to the development of widely available, efficient and environmentally friendly adsorbents. Natural metal oxide-based materials (SiO2, Al2O3, Fe2O3), such as loam, are effective adsorbents for removal of cationic and anionic species. The adsorption experiments were performed in a batch system, varying the pH value of the initial solution, while the mass of adsorbent, time and temperature were constant. The influence of pH value has a leading influence to the adsorption process so the process efficiency was determined at the pH values set at: 4, 5 and 6. The structural characteristics of the loam was performed using X-ray diffraction analysis (XRD), Fourier-Transform Infrared Spectroscopy (FTIR) and scanning electron microscopy (SEM). The concentration of ions after their removal was determined using inductively coupled plasma mass spectrometry (ICP-MS). The maximum removal of lead ions was obtained at pH 5 (94.2%), while for arsenic ions, it was at pH 6 (35.1%).
PB  - Akademija tehničkih strukovnih studija Beograd
C3  - 6. Naučno-stručni skup Politehnika, Zbornik radova
T1  - Ispitivanje adsorpcionih svojstava ilovače za uklanjanje jona olova i arsena iz vodenih rastvora
EP  - 148
SP  - 143
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6313
ER  - 

@conference{
author = "Stanišić, Tijana and Đolić, Maja and Ćujić, Mirjana and Ristić, Mirjana and Perić-Grujić, Aleksandra",
year = "2021",
abstract = "Olovo i arsen predstavljaju značajnu grupu neorganskih polutanata koji su prisutni u
životnoj sredini, pre svega u vodenim sistemima, pa je njihovo uklanjanje veliki tehničkotehnološki izazov. Zbog toga se sve više pažnje posvećuje razvoju pristupačnih, efikasnih i
ekološki prihvatljivih adsorbenata. Prirodni materijali na bazi oksida metala (SiO2, Al2O3,
Fe2O3), poput ilovače, predstavljaju efikasne adsorbente za uklanjanje katjonskih i anjonskih
vrsta iz vodenih rastvora. U ovom radu adsorpciona svojstva ilovače ispitivana su u šaržnom
sistemu, promenom pH vrednosti početnog rastvora, dok su masa adsorbenta, vreme i
temperature procesa bili konstantni. Značajnu ulogu u odvijanju adsorpcionog procesa ima pH
vrednost rastvora, stoga se eksperiment zasnivao na određivanju efikasnosti procesa pri vrednosti
pH rastvora 4, 5 i 6. Strukturne karakteristike ilovače su određene primenom rendgenske
difrakcione analize (engl. X-Ray Difraction, XRD), infracrvenom spektroskopijom sa Furijeovom
transformacijom (engl. Fourier-Transform Infrared Spectroscopy, FTIR) i skenirajuće elektronske
mikroskopije (engl. Scanning electron microscopy, SEM). Koncentracija jona nakon procesa
adsorpcije određena je pomoću indukovano spregnute plazme sa masenom spektrometrijom (engl.
Inductively Coupled Plasma Mass Spectrometry, ICP-MS). Maksimalna efikasnost uklanjanja
jona olova postignuta je na pH vrednosti 5 (94,2 %), dok je za jone arsena optimalna pH vrednost
bila 6 (35,1 %)., Lead and arsenic represent an important group of inorganic pollutants that can be found in the environment, primarily in aquatic systems. Their removal from water systems is a big environmental problem, but also a significant technological challenge. Therefore, an increasing attention is paid to the development of widely available, efficient and environmentally friendly adsorbents. Natural metal oxide-based materials (SiO2, Al2O3, Fe2O3), such as loam, are effective adsorbents for removal of cationic and anionic species. The adsorption experiments were performed in a batch system, varying the pH value of the initial solution, while the mass of adsorbent, time and temperature were constant. The influence of pH value has a leading influence to the adsorption process so the process efficiency was determined at the pH values set at: 4, 5 and 6. The structural characteristics of the loam was performed using X-ray diffraction analysis (XRD), Fourier-Transform Infrared Spectroscopy (FTIR) and scanning electron microscopy (SEM). The concentration of ions after their removal was determined using inductively coupled plasma mass spectrometry (ICP-MS). The maximum removal of lead ions was obtained at pH 5 (94.2%), while for arsenic ions, it was at pH 6 (35.1%).",
publisher = "Akademija tehničkih strukovnih studija Beograd",
journal = "6. Naučno-stručni skup Politehnika, Zbornik radova",
title = "Ispitivanje adsorpcionih svojstava ilovače za uklanjanje jona olova i arsena iz vodenih rastvora",
pages = "148-143",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6313"
}

Stanišić, T., Đolić, M., Ćujić, M., Ristić, M.,& Perić-Grujić, A.. (2021). Ispitivanje adsorpcionih svojstava ilovače za uklanjanje jona olova i arsena iz vodenih rastvora. in 6. Naučno-stručni skup Politehnika, Zbornik radova
Akademija tehničkih strukovnih studija Beograd., 143-148.
https://hdl.handle.net/21.15107/rcub_technorep_6313

Stanišić T, Đolić M, Ćujić M, Ristić M, Perić-Grujić A. Ispitivanje adsorpcionih svojstava ilovače za uklanjanje jona olova i arsena iz vodenih rastvora. in 6. Naučno-stručni skup Politehnika, Zbornik radova. 2021;:143-148.
https://hdl.handle.net/21.15107/rcub_technorep_6313 .

Stanišić, Tijana, Đolić, Maja, Ćujić, Mirjana, Ristić, Mirjana, Perić-Grujić, Aleksandra, "Ispitivanje adsorpcionih svojstava ilovače za uklanjanje jona olova i arsena iz vodenih rastvora" in 6. Naučno-stručni skup Politehnika, Zbornik radova (2021):143-148,
https://hdl.handle.net/21.15107/rcub_technorep_6313 .

TY  - CONF
AU  - Stanišić, Tijana
AU  - Đolić, Maja
AU  - Kokunesoski, Maja
AU  - Ristić, Mirjana
AU  - Perić-Grujić, Aleksandra
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6325
AB  - Cilj istraživanja ovog rada bio je ispitivanje mogućnosti primene prirodnih
nemodifikovanih materijala kao adsorbenata za efikasno uklanjanje Pb2+ jona iz vode. Korišćena
su dva materijala čiji sastav čini smeša oksida SiO2, Al2O3 i Fe2O3. Na osnovu teksturne
klasifikacije uzoraka, analizirani materijali spadaju u peskovitu ilovaču i ilovasti pesak. U okviru
rada izvršena je karakterizacija materijala primenom rendgenske difrakcione analize (engl. X-Ray
Difraction, XRD) i infracrvene spektroskopije sa Furijeovom transformacijom (engl. Fourier-
Transform Infrared Spectroscopy, FTIR). Proces adsorpcije Pb2+ jona na prirodnim materijalima
ispitan je u šaržnom sistemu, variranjem mase adsorbenta i pH vrednosti rastvora. Peskovita
ilovača i ilovasti pesak pokazali su visoku efikasnost za uklanjanje Pb2+ jona iz vode, bez prethodne
hemijske modfikacije. Efikasnost uklanjanja jona olova uz pomoć peskovite ilovače i ilovastog
pesaka iznosi 88,2 % i 80,2 %, pri optimalnim uslovima (Ci (Pb2+)=100 μg L-1, mads=10 mg i
pH=5). Dobijeni rezultati pokazuju i potvrđuju da se prirodni materijali na bazi oksida metala
mogu koristiti kao efikasni adsorbenti za uklanjanje katjonskih oblika teških metala iz vode.
AB  - The aim of this study was to examine the possibility of using natural unmodified materials
as adsorbents for efficient removal of Pb2+ions from aqueous solution. Two raw materials
composed of SiO2, Al2O3 and Fe2O3, were analyzed. According to the textural classification the tested materials belong to sandy loam and loamy sand. In this research, X-ray diffraction analysis (XRD) and Fourier-Transform infrared spectroscopy (FTIR) were used for structural characterization of the materials. The process of adsorption of Pb2+ ions onto natural materials was conducted in a batch system. In order to determine optimal conditions, the mass of the adsorbent and the pH value of the solution were varied. Sandy loam and loamy sand have shown high efficiency for removing Pb2+ions from aqueous solution, without previous chemical modification. The efficiency of removal of lead ions on sandy loam and loamy sand is 88.2% and 80.2%, respectively, under optimal conditions (Ci(Pb2+)=100 μg L-1, mads=10 mg and pH 5). This study confirms that natural materials based on metal oxides can be used as effective adsorbents toremove cationic species of heavy metals from water systems.
PB  - Akademija tehničkih strukovnih studija Beograd
C3  - 6. Naučno-stručni skup Politehnika, Zbornik radova
T1  - Heterogeni prirodni materijali mineralne strukture kao efikasni adsorbenti za uklanjanje Pb2+ jona iz vode
EP  - 154
SP  - 149
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6325
ER  - 

@conference{
author = "Stanišić, Tijana and Đolić, Maja and Kokunesoski, Maja and Ristić, Mirjana and Perić-Grujić, Aleksandra",
year = "2021",
abstract = "Cilj istraživanja ovog rada bio je ispitivanje mogućnosti primene prirodnih
nemodifikovanih materijala kao adsorbenata za efikasno uklanjanje Pb2+ jona iz vode. Korišćena
su dva materijala čiji sastav čini smeša oksida SiO2, Al2O3 i Fe2O3. Na osnovu teksturne
klasifikacije uzoraka, analizirani materijali spadaju u peskovitu ilovaču i ilovasti pesak. U okviru
rada izvršena je karakterizacija materijala primenom rendgenske difrakcione analize (engl. X-Ray
Difraction, XRD) i infracrvene spektroskopije sa Furijeovom transformacijom (engl. Fourier-
Transform Infrared Spectroscopy, FTIR). Proces adsorpcije Pb2+ jona na prirodnim materijalima
ispitan je u šaržnom sistemu, variranjem mase adsorbenta i pH vrednosti rastvora. Peskovita
ilovača i ilovasti pesak pokazali su visoku efikasnost za uklanjanje Pb2+ jona iz vode, bez prethodne
hemijske modfikacije. Efikasnost uklanjanja jona olova uz pomoć peskovite ilovače i ilovastog
pesaka iznosi 88,2 % i 80,2 %, pri optimalnim uslovima (Ci (Pb2+)=100 μg L-1, mads=10 mg i
pH=5). Dobijeni rezultati pokazuju i potvrđuju da se prirodni materijali na bazi oksida metala
mogu koristiti kao efikasni adsorbenti za uklanjanje katjonskih oblika teških metala iz vode., The aim of this study was to examine the possibility of using natural unmodified materials
as adsorbents for efficient removal of Pb2+ions from aqueous solution. Two raw materials
composed of SiO2, Al2O3 and Fe2O3, were analyzed. According to the textural classification the tested materials belong to sandy loam and loamy sand. In this research, X-ray diffraction analysis (XRD) and Fourier-Transform infrared spectroscopy (FTIR) were used for structural characterization of the materials. The process of adsorption of Pb2+ ions onto natural materials was conducted in a batch system. In order to determine optimal conditions, the mass of the adsorbent and the pH value of the solution were varied. Sandy loam and loamy sand have shown high efficiency for removing Pb2+ions from aqueous solution, without previous chemical modification. The efficiency of removal of lead ions on sandy loam and loamy sand is 88.2% and 80.2%, respectively, under optimal conditions (Ci(Pb2+)=100 μg L-1, mads=10 mg and pH 5). This study confirms that natural materials based on metal oxides can be used as effective adsorbents toremove cationic species of heavy metals from water systems.",
publisher = "Akademija tehničkih strukovnih studija Beograd",
journal = "6. Naučno-stručni skup Politehnika, Zbornik radova",
title = "Heterogeni prirodni materijali mineralne strukture kao efikasni adsorbenti za uklanjanje Pb2+ jona iz vode",
pages = "154-149",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6325"
}

Stanišić, T., Đolić, M., Kokunesoski, M., Ristić, M.,& Perić-Grujić, A.. (2021). Heterogeni prirodni materijali mineralne strukture kao efikasni adsorbenti za uklanjanje Pb2+ jona iz vode. in 6. Naučno-stručni skup Politehnika, Zbornik radova
Akademija tehničkih strukovnih studija Beograd., 149-154.
https://hdl.handle.net/21.15107/rcub_technorep_6325

Stanišić T, Đolić M, Kokunesoski M, Ristić M, Perić-Grujić A. Heterogeni prirodni materijali mineralne strukture kao efikasni adsorbenti za uklanjanje Pb2+ jona iz vode. in 6. Naučno-stručni skup Politehnika, Zbornik radova. 2021;:149-154.
https://hdl.handle.net/21.15107/rcub_technorep_6325 .

Stanišić, Tijana, Đolić, Maja, Kokunesoski, Maja, Ristić, Mirjana, Perić-Grujić, Aleksandra, "Heterogeni prirodni materijali mineralne strukture kao efikasni adsorbenti za uklanjanje Pb2+ jona iz vode" in 6. Naučno-stručni skup Politehnika, Zbornik radova (2021):149-154,
https://hdl.handle.net/21.15107/rcub_technorep_6325 .

TY  - JOUR
AU  - Novack, Aline M.
AU  - dos Reis, Glaydson S.
AU  - Hackbarth, Fabiola, V
AU  - Marinho, Belisa A.
AU  - Đolić, Maja
AU  - Valle, Jose A. B.
AU  - Sampaio, Carlos H.
AU  - Lima, Eder C.
AU  - Dotto, Guillherme L.
AU  - Ulson de Souza, Antonio Augusto
AU  - Vilar, Vitor J. P.
AU  - Guelli Ulson de Souza, Selene M. A.
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/19
AB  - This paper presents the synthesis of a hybrid material through the use of natural pozzolan and titanium(IV) isopropoxide using the sol-gel method and its application in the photocatalytic hexavalent chromium reduction. The characterization data indicated a mesoporous material possessing a surface area of 271.7 m(2) g(-1). The morphology studies (SEM and TEM) showed nanosheet hybrid structures. The analysis of DRUV, FTIR, XRD, and Mossbauer spectroscopy provides a different electronic structure of the synthetized material when compared with the originals, proving the hybridization process between pozzolan and titanium(IV) isopropoxide. The photocatalytic reduction of Cr(VI) to Cr(III) using the hybrid material showed a better performance than conventional photocatalysts (precursor and TiO2-P25). Operational conditions such as chromium initial concentration (0.02-0.20 mM), solution pH (3-6), and type of scavenger (citric or tartaric acid) were evaluated in order to determine the best experimental conditions for the Cr(VI) photoreduction. At their optimum (catalyst load of 15 mg L-1, tartaric acid as scavenger, [scavenger](0)/[Cr(VI)](0) M ratio = 3:1, pH 3, and 25 degrees C), the total photoreduction of 0.20 mM Cr(VI) was achieved in 180 min. The novel hybrid materials synthesized from pozzolan and titanium(IV) isopropoxide showed to be a potential catalyst for the Cr(VI) reduction in aqueous solution.
PB  - Springer Heidelberg, Heidelberg
T2  - Environmental Science and Pollution Research
T1  - Facile fabrication of hybrid titanium(IV) isopropoxide/pozzolan nanosheets (TnS-Pz) of high photocatalytic activity: characterization and application for Cr(VI) reduction in an aqueous solution
EP  - 23581
IS  - 19
SP  - 23568
VL  - 28
DO  - 10.1007/s11356-020-09178-1
ER  - 

@article{
author = "Novack, Aline M. and dos Reis, Glaydson S. and Hackbarth, Fabiola, V and Marinho, Belisa A. and Đolić, Maja and Valle, Jose A. B. and Sampaio, Carlos H. and Lima, Eder C. and Dotto, Guillherme L. and Ulson de Souza, Antonio Augusto and Vilar, Vitor J. P. and Guelli Ulson de Souza, Selene M. A.",
year = "2021",
abstract = "This paper presents the synthesis of a hybrid material through the use of natural pozzolan and titanium(IV) isopropoxide using the sol-gel method and its application in the photocatalytic hexavalent chromium reduction. The characterization data indicated a mesoporous material possessing a surface area of 271.7 m(2) g(-1). The morphology studies (SEM and TEM) showed nanosheet hybrid structures. The analysis of DRUV, FTIR, XRD, and Mossbauer spectroscopy provides a different electronic structure of the synthetized material when compared with the originals, proving the hybridization process between pozzolan and titanium(IV) isopropoxide. The photocatalytic reduction of Cr(VI) to Cr(III) using the hybrid material showed a better performance than conventional photocatalysts (precursor and TiO2-P25). Operational conditions such as chromium initial concentration (0.02-0.20 mM), solution pH (3-6), and type of scavenger (citric or tartaric acid) were evaluated in order to determine the best experimental conditions for the Cr(VI) photoreduction. At their optimum (catalyst load of 15 mg L-1, tartaric acid as scavenger, [scavenger](0)/[Cr(VI)](0) M ratio = 3:1, pH 3, and 25 degrees C), the total photoreduction of 0.20 mM Cr(VI) was achieved in 180 min. The novel hybrid materials synthesized from pozzolan and titanium(IV) isopropoxide showed to be a potential catalyst for the Cr(VI) reduction in aqueous solution.",
publisher = "Springer Heidelberg, Heidelberg",
journal = "Environmental Science and Pollution Research",
title = "Facile fabrication of hybrid titanium(IV) isopropoxide/pozzolan nanosheets (TnS-Pz) of high photocatalytic activity: characterization and application for Cr(VI) reduction in an aqueous solution",
pages = "23581-23568",
number = "19",
volume = "28",
doi = "10.1007/s11356-020-09178-1"
}

Novack, A. M., dos Reis, G. S., Hackbarth, F. V., Marinho, B. A., Đolić, M., Valle, J. A. B., Sampaio, C. H., Lima, E. C., Dotto, G. L., Ulson de Souza, A. A., Vilar, V. J. P.,& Guelli Ulson de Souza, S. M. A.. (2021). Facile fabrication of hybrid titanium(IV) isopropoxide/pozzolan nanosheets (TnS-Pz) of high photocatalytic activity: characterization and application for Cr(VI) reduction in an aqueous solution. in Environmental Science and Pollution Research
Springer Heidelberg, Heidelberg., 28(19), 23568-23581.
https://doi.org/10.1007/s11356-020-09178-1

Novack AM, dos Reis GS, Hackbarth FV, Marinho BA, Đolić M, Valle JAB, Sampaio CH, Lima EC, Dotto GL, Ulson de Souza AA, Vilar VJP, Guelli Ulson de Souza SMA. Facile fabrication of hybrid titanium(IV) isopropoxide/pozzolan nanosheets (TnS-Pz) of high photocatalytic activity: characterization and application for Cr(VI) reduction in an aqueous solution. in Environmental Science and Pollution Research. 2021;28(19):23568-23581.
doi:10.1007/s11356-020-09178-1 .

Novack, Aline M., dos Reis, Glaydson S., Hackbarth, Fabiola, V, Marinho, Belisa A., Đolić, Maja, Valle, Jose A. B., Sampaio, Carlos H., Lima, Eder C., Dotto, Guillherme L., Ulson de Souza, Antonio Augusto, Vilar, Vitor J. P., Guelli Ulson de Souza, Selene M. A., "Facile fabrication of hybrid titanium(IV) isopropoxide/pozzolan nanosheets (TnS-Pz) of high photocatalytic activity: characterization and application for Cr(VI) reduction in an aqueous solution" in Environmental Science and Pollution Research, 28, no. 19 (2021):23568-23581,
https://doi.org/10.1007/s11356-020-09178-1 . .

TY  - CONF
AU  - Stanišić, Tijana
AU  - Popović, Ana
AU  - Rusmirović, Jelena
AU  - Đolić, Maja
AU  - Ristić, Mirjana
AU  - Perić-Grujić, Aleksandra
AU  - Marinković, Aleksandar
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6322
AB  - Sustainable development and the circular economy are becoming the new imperative of industrial growth, as the world faces the depletion of natural resources and consequences of climate change. The utilization of waste streams through the concept of ‘new added value’ gives life to the production of materials and their environmental application. Therefore, the development of novel, eco-friendly, nature-based adsorbents that possess high degradable and recyclable potential is on the forefront of research. The modifications of wood derivates, such as cellulose and lignin, are widely applied as natural polymers due to their economic feasibility, ecological similarity and adsorption capabilities.

The subject of this study is the adsorption of nickel(II) and cadmium(II) ions from aqueous solutions using 5.0 mass % of alginate lignin microspheres (A-LMS). Due to their toxicity, persistence, high solubility and mobility, such heavy metals are widely dispersed throughout environmental media (chiefly, aquatic bodies), leading to ecological and public health problems. The raw lignin used as a source material in the study originates from the waste stream of the lumber industry. The porous microspheres are of a radius of 50 to 950 microns and a surface area of 36.9 m2 g-1 were synthesized via inverse suspension copolymerization of the kraft lignin with a poly(ethylene imine) grafting-agent and an epichlorohydrin cross-linker. The structural and surface characteristics were confirmed via Fourier transform-infrared (FTIR) spectroscopy, x-ray diffraction (XRD) and scanning electron microscopy (SEM). The textural properties of the synthesized A-LMS were determined according to the Brunauer, Emmett and Teller (BET) method of analyzing nitrogen adsorption. The adsorption batch and column testing were carried out by varying the reaction time, temperature, adsorbent mass, at predefined pH values of the initial solutions. The maximum adsorption capacity of the A-LMS for nickel (II) ions was 89.286 mg g-1 at a temperature of 318 K, while for the adsorption of cadmium(II) ions it was 96.154 mg g-1 at a temperature of 308 K. The kinetic data followed the pseudo-second-order kinetic model, while the Weber-Morris model indicated intra-particle diffusion as a rate limiting step. The thermodynamic parameters for the A-LMS further confirm that the adsorption process was spontaneous and endothermic.

The study indicates the high potential of by-products or waste products from heavy industry to be repurposed for environmental engineering applications by which they may serve a benefit as opposed to being a detrimental risk. Such is the case here with lignin-natural polymers taken from the lumber industry, which themselves may be reutilized for the removal of heavy metals from wastewater.
C3  - EGU General Assembly
T1  - Lignin microspheres as a nature-based material for effective nickel(II) and cadmium(II) ions removal
DO  - 10.5194/egusphere-egu2020-493
ER  - 

@conference{
author = "Stanišić, Tijana and Popović, Ana and Rusmirović, Jelena and Đolić, Maja and Ristić, Mirjana and Perić-Grujić, Aleksandra and Marinković, Aleksandar",
year = "2020",
abstract = "Sustainable development and the circular economy are becoming the new imperative of industrial growth, as the world faces the depletion of natural resources and consequences of climate change. The utilization of waste streams through the concept of ‘new added value’ gives life to the production of materials and their environmental application. Therefore, the development of novel, eco-friendly, nature-based adsorbents that possess high degradable and recyclable potential is on the forefront of research. The modifications of wood derivates, such as cellulose and lignin, are widely applied as natural polymers due to their economic feasibility, ecological similarity and adsorption capabilities.

The subject of this study is the adsorption of nickel(II) and cadmium(II) ions from aqueous solutions using 5.0 mass % of alginate lignin microspheres (A-LMS). Due to their toxicity, persistence, high solubility and mobility, such heavy metals are widely dispersed throughout environmental media (chiefly, aquatic bodies), leading to ecological and public health problems. The raw lignin used as a source material in the study originates from the waste stream of the lumber industry. The porous microspheres are of a radius of 50 to 950 microns and a surface area of 36.9 m2 g-1 were synthesized via inverse suspension copolymerization of the kraft lignin with a poly(ethylene imine) grafting-agent and an epichlorohydrin cross-linker. The structural and surface characteristics were confirmed via Fourier transform-infrared (FTIR) spectroscopy, x-ray diffraction (XRD) and scanning electron microscopy (SEM). The textural properties of the synthesized A-LMS were determined according to the Brunauer, Emmett and Teller (BET) method of analyzing nitrogen adsorption. The adsorption batch and column testing were carried out by varying the reaction time, temperature, adsorbent mass, at predefined pH values of the initial solutions. The maximum adsorption capacity of the A-LMS for nickel (II) ions was 89.286 mg g-1 at a temperature of 318 K, while for the adsorption of cadmium(II) ions it was 96.154 mg g-1 at a temperature of 308 K. The kinetic data followed the pseudo-second-order kinetic model, while the Weber-Morris model indicated intra-particle diffusion as a rate limiting step. The thermodynamic parameters for the A-LMS further confirm that the adsorption process was spontaneous and endothermic.

The study indicates the high potential of by-products or waste products from heavy industry to be repurposed for environmental engineering applications by which they may serve a benefit as opposed to being a detrimental risk. Such is the case here with lignin-natural polymers taken from the lumber industry, which themselves may be reutilized for the removal of heavy metals from wastewater.",
journal = "EGU General Assembly",
title = "Lignin microspheres as a nature-based material for effective nickel(II) and cadmium(II) ions removal",
doi = "10.5194/egusphere-egu2020-493"
}

Stanišić, T., Popović, A., Rusmirović, J., Đolić, M., Ristić, M., Perić-Grujić, A.,& Marinković, A.. (2020). Lignin microspheres as a nature-based material for effective nickel(II) and cadmium(II) ions removal. in EGU General Assembly.
https://doi.org/10.5194/egusphere-egu2020-493

Stanišić T, Popović A, Rusmirović J, Đolić M, Ristić M, Perić-Grujić A, Marinković A. Lignin microspheres as a nature-based material for effective nickel(II) and cadmium(II) ions removal. in EGU General Assembly. 2020;.
doi:10.5194/egusphere-egu2020-493 .

Stanišić, Tijana, Popović, Ana, Rusmirović, Jelena, Đolić, Maja, Ristić, Mirjana, Perić-Grujić, Aleksandra, Marinković, Aleksandar, "Lignin microspheres as a nature-based material for effective nickel(II) and cadmium(II) ions removal" in EGU General Assembly (2020),
https://doi.org/10.5194/egusphere-egu2020-493 . .