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  - 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  - 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  - 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 . .