TY  - JOUR
AU  - Pavlović, Jelena
AU  - Hrenović, Jasna
AU  - Povrenović, Dragan
AU  - Rajić, Nevenka
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7414
AB  - Adsorptive, catalytic, and antibacterial properties of clinoptilolite-rich tuffs (ZT) are presented here. ZT transformed into Fe-containing ZT (Fe-ZT) removes various organic and inorganic anions from water. Fe-ZT, which contains selenium, is beneficial for growing Pleurotus ostreatus mushrooms. The fungi convert inorganic Se from Fe-ZT into a more useful organically bonded form. ZT and Fe-ZT as supplements retain nitrogen and potassium in sandy, silty loam and silty clay soils. ZT shows an affinity toward toxic metal cations, which are essential for cleaning contaminated water. The adsorption of atenolol, acetylsalicylic, and salicylic acid onto M-ZT (M–Cu2+, Mn2+, Ni2+, or Zn2+) from water solutions suggests that both the natures of M and pharmaceuticals have a significant impact on the adsorption mechanism and determine the adsorption capability of the ZT. ZT is an excellent carrier for ultrafine (2–5 nm) nano oxide particles, which have been shown to have catalytic activity in different chemical processes and photodegradation reactions of organic pollutants. ZT can also be transformed into SO4-SnO2-ZT, which is catalytically active as a solid acid. M-ZT is an effective carrier of valuable bacteria. Ag-ZT possesses beneficial bactericidal activity in disinfecting water and soil remediation.
PB  - MDPI
T2  - Materials
T1  - Advances in the Applications of Clinoptilolite-Rich Tuffs
IS  - 6
SP  - 1306
VL  - 17
DO  - 10.3390/ma17061306
ER  - 

@article{
author = "Pavlović, Jelena and Hrenović, Jasna and Povrenović, Dragan and Rajić, Nevenka",
year = "2024",
abstract = "Adsorptive, catalytic, and antibacterial properties of clinoptilolite-rich tuffs (ZT) are presented here. ZT transformed into Fe-containing ZT (Fe-ZT) removes various organic and inorganic anions from water. Fe-ZT, which contains selenium, is beneficial for growing Pleurotus ostreatus mushrooms. The fungi convert inorganic Se from Fe-ZT into a more useful organically bonded form. ZT and Fe-ZT as supplements retain nitrogen and potassium in sandy, silty loam and silty clay soils. ZT shows an affinity toward toxic metal cations, which are essential for cleaning contaminated water. The adsorption of atenolol, acetylsalicylic, and salicylic acid onto M-ZT (M–Cu2+, Mn2+, Ni2+, or Zn2+) from water solutions suggests that both the natures of M and pharmaceuticals have a significant impact on the adsorption mechanism and determine the adsorption capability of the ZT. ZT is an excellent carrier for ultrafine (2–5 nm) nano oxide particles, which have been shown to have catalytic activity in different chemical processes and photodegradation reactions of organic pollutants. ZT can also be transformed into SO4-SnO2-ZT, which is catalytically active as a solid acid. M-ZT is an effective carrier of valuable bacteria. Ag-ZT possesses beneficial bactericidal activity in disinfecting water and soil remediation.",
publisher = "MDPI",
journal = "Materials",
title = "Advances in the Applications of Clinoptilolite-Rich Tuffs",
number = "6",
pages = "1306",
volume = "17",
doi = "10.3390/ma17061306"
}

Pavlović, J., Hrenović, J., Povrenović, D.,& Rajić, N.. (2024). Advances in the Applications of Clinoptilolite-Rich Tuffs. in Materials
MDPI., 17(6), 1306.
https://doi.org/10.3390/ma17061306

Pavlović J, Hrenović J, Povrenović D, Rajić N. Advances in the Applications of Clinoptilolite-Rich Tuffs. in Materials. 2024;17(6):1306.
doi:10.3390/ma17061306 .

Pavlović, Jelena, Hrenović, Jasna, Povrenović, Dragan, Rajić, Nevenka, "Advances in the Applications of Clinoptilolite-Rich Tuffs" in Materials, 17, no. 6 (2024):1306,
https://doi.org/10.3390/ma17061306 . .

TY  - CONF
AU  - Pavlović, Jelena
AU  - Šuligoj, Andraž
AU  - Novak Tušar, Nataša
AU  - Rajić, Nevenka
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6572
AB  - Due to their unique structural properties, low cost and environmental compatibility, natural zeolites have been recognized as effective
supports for photocatalytic particles such as transition metal oxides (e.g. TiO2, NiO, ZnO, CuO, SnO2, Fe2O3) in the catalytic degradation
of complex organic dyes present in water media [1, 2]. The lattice of zeolite prevents the aggregation of oxide species but also
contributes to the electron-hole recombination. It has been noticed that pure clinoptilolite (CLI) exhibits a photocatalytic activity in the
degradation of rhodamine B. This is explained by the presence of Ti and/or Fe species, which are usually impurities in zeolitic tuffs [3].
The present study focuses on CLI-rich natural zeolitic tuffs and their photocatalytic activity in the degradation of cationic organic dyes
such as methylene blue (MB). CLI from different regions and deposists was tested: a) Serbia – Slanci (SCLI), b) Turkey – Gördes (TCLI),
c) Iran – Semnam (ICLI), d) Romania – Baia Mare (RCLI) and e) Slovakia – Nižný Hrabovec (SKCLI). Samples were sieved to obtain the
particles with the size in the range 63 and 125 μm mesh, washed with deionized water, dried at 105 °C overnight and tested wi thout
any additional treatments. Photodegradation tests were performed using a batch reactor system equipped with a 50 cm3 Pyrex glass
cell and by a circulating water jacket to keep the constant temperature at 25 °C. All tests were done at atmospheric pressure. Suspension
contained water solution of MB (C0= 10 mg dm–3) and photocatalyst in the concentration of 0.2 g dm–3 at different pH (pH= 3, 6, or
9), was continuously stirred by magnetic stirrer for 30 min to achieved an adsorption/desorption equilibrium and then irradiated for
300 min. Osram Ultra Vitalux lamp (300 W) served as visible light source, positioned 10 cm above the photocatalytic reactor. The
concentration of MB was measured colorimetrically at λ = 664 nm by using an UV/VIS spectrometer.
The obtained results showed that the overall degradation of MB by the photocatalytic process can be attributed to the joint effect of
initial adsorption and degradation under visible light irradiation. The adsorption amounts indicated that CLI has two roles: adsorption
of MB during the dark phase and photocatalytical. The adsorption increased with pH. The photocatalytic degradation is also affected
by pH showing the best activity for all studied zeolitic tuffs at pH= 6. The rate of MB degradation varied from about 36-47% while the
total degradation was 70-91%. The photocatalytic activity was attributed to the presence of Fe species showing a linear increase with
the Fe content in the tuffs. The MB photodegradation follows the Langmuir–Hinshelwood kinetic model. The recyclability tests showed
that the degradation rate decreased from 91 to 69% during three reaction cycles, demonstrating a promising potential of CLI in the
treatment of textile industry wastewaters.
PB  - Slovenian Zeoilte Association
C3  - Book of abstracts / 9th Conference of the Federation of European Zeolite Associations (FEZA
2023), 2nd-6th of July
T1  - Photocatalytic activity of clinoptilolite rich zeolitic tuffs from different regions
SP  - 192
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6572
ER  - 

@conference{
author = "Pavlović, Jelena and Šuligoj, Andraž and Novak Tušar, Nataša and Rajić, Nevenka",
year = "2023",
abstract = "Due to their unique structural properties, low cost and environmental compatibility, natural zeolites have been recognized as effective
supports for photocatalytic particles such as transition metal oxides (e.g. TiO2, NiO, ZnO, CuO, SnO2, Fe2O3) in the catalytic degradation
of complex organic dyes present in water media [1, 2]. The lattice of zeolite prevents the aggregation of oxide species but also
contributes to the electron-hole recombination. It has been noticed that pure clinoptilolite (CLI) exhibits a photocatalytic activity in the
degradation of rhodamine B. This is explained by the presence of Ti and/or Fe species, which are usually impurities in zeolitic tuffs [3].
The present study focuses on CLI-rich natural zeolitic tuffs and their photocatalytic activity in the degradation of cationic organic dyes
such as methylene blue (MB). CLI from different regions and deposists was tested: a) Serbia – Slanci (SCLI), b) Turkey – Gördes (TCLI),
c) Iran – Semnam (ICLI), d) Romania – Baia Mare (RCLI) and e) Slovakia – Nižný Hrabovec (SKCLI). Samples were sieved to obtain the
particles with the size in the range 63 and 125 μm mesh, washed with deionized water, dried at 105 °C overnight and tested wi thout
any additional treatments. Photodegradation tests were performed using a batch reactor system equipped with a 50 cm3 Pyrex glass
cell and by a circulating water jacket to keep the constant temperature at 25 °C. All tests were done at atmospheric pressure. Suspension
contained water solution of MB (C0= 10 mg dm–3) and photocatalyst in the concentration of 0.2 g dm–3 at different pH (pH= 3, 6, or
9), was continuously stirred by magnetic stirrer for 30 min to achieved an adsorption/desorption equilibrium and then irradiated for
300 min. Osram Ultra Vitalux lamp (300 W) served as visible light source, positioned 10 cm above the photocatalytic reactor. The
concentration of MB was measured colorimetrically at λ = 664 nm by using an UV/VIS spectrometer.
The obtained results showed that the overall degradation of MB by the photocatalytic process can be attributed to the joint effect of
initial adsorption and degradation under visible light irradiation. The adsorption amounts indicated that CLI has two roles: adsorption
of MB during the dark phase and photocatalytical. The adsorption increased with pH. The photocatalytic degradation is also affected
by pH showing the best activity for all studied zeolitic tuffs at pH= 6. The rate of MB degradation varied from about 36-47% while the
total degradation was 70-91%. The photocatalytic activity was attributed to the presence of Fe species showing a linear increase with
the Fe content in the tuffs. The MB photodegradation follows the Langmuir–Hinshelwood kinetic model. The recyclability tests showed
that the degradation rate decreased from 91 to 69% during three reaction cycles, demonstrating a promising potential of CLI in the
treatment of textile industry wastewaters.",
publisher = "Slovenian Zeoilte Association",
journal = "Book of abstracts / 9th Conference of the Federation of European Zeolite Associations (FEZA
2023), 2nd-6th of July",
title = "Photocatalytic activity of clinoptilolite rich zeolitic tuffs from different regions",
pages = "192",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6572"
}

Pavlović, J., Šuligoj, A., Novak Tušar, N.,& Rajić, N.. (2023). Photocatalytic activity of clinoptilolite rich zeolitic tuffs from different regions. in Book of abstracts / 9th Conference of the Federation of European Zeolite Associations (FEZA
2023), 2nd-6th of July
Slovenian Zeoilte Association., 192.
https://hdl.handle.net/21.15107/rcub_technorep_6572

Pavlović J, Šuligoj A, Novak Tušar N, Rajić N. Photocatalytic activity of clinoptilolite rich zeolitic tuffs from different regions. in Book of abstracts / 9th Conference of the Federation of European Zeolite Associations (FEZA
2023), 2nd-6th of July. 2023;:192.
https://hdl.handle.net/21.15107/rcub_technorep_6572 .

Pavlović, Jelena, Šuligoj, Andraž, Novak Tušar, Nataša, Rajić, Nevenka, "Photocatalytic activity of clinoptilolite rich zeolitic tuffs from different regions" in Book of abstracts / 9th Conference of the Federation of European Zeolite Associations (FEZA
2023), 2nd-6th of July (2023):192,
https://hdl.handle.net/21.15107/rcub_technorep_6572 .

TY  - JOUR
AU  - Pavlović, Jelena
AU  - Rajić, Nevenka
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6473
AB  - Many efforts have been devoted to produce green materials and technology to prevent and minimize the adverse effects on the environment and human health caused primarily by population growth and industrial progress. Over the past years, the use of zeolites has attracted considerable attention as both an economically and environmentally friendly option. Zeolites are crystalline, hydrated aluminosilicates with an open-framework structure. Unique structural features make them very useful ion-changers, adsorbents and catalysts. The catalytic use of zeolites has expanded from traditional use in the petrochemical industry and refineries to use in the catalytic degradation of various environmental pollutants and the synthesis of fine chemicals. In recent times, progress on the use of zeolites has been achieved in biomass conversion to fuels and valuable industrial bio-based chemicals. This review highlights the recent advances in the catalytic application of clinoptilolite (CLI), the most abundant and explored natural zeolite. The main goal of the review is to give the current state of CLI applications and insights into CLI catalytic performance, which opens possibilities for a variety of applications.
PB  - MDPI
T2  - Minerals
T1  - Clinoptilolite—An Efficient Carrier for Catalytically Active Nano Oxide Particles
IS  - 7
SP  - 877
VL  - 13
DO  - 10.3390/min13070877
ER  - 

@article{
author = "Pavlović, Jelena and Rajić, Nevenka",
year = "2023",
abstract = "Many efforts have been devoted to produce green materials and technology to prevent and minimize the adverse effects on the environment and human health caused primarily by population growth and industrial progress. Over the past years, the use of zeolites has attracted considerable attention as both an economically and environmentally friendly option. Zeolites are crystalline, hydrated aluminosilicates with an open-framework structure. Unique structural features make them very useful ion-changers, adsorbents and catalysts. The catalytic use of zeolites has expanded from traditional use in the petrochemical industry and refineries to use in the catalytic degradation of various environmental pollutants and the synthesis of fine chemicals. In recent times, progress on the use of zeolites has been achieved in biomass conversion to fuels and valuable industrial bio-based chemicals. This review highlights the recent advances in the catalytic application of clinoptilolite (CLI), the most abundant and explored natural zeolite. The main goal of the review is to give the current state of CLI applications and insights into CLI catalytic performance, which opens possibilities for a variety of applications.",
publisher = "MDPI",
journal = "Minerals",
title = "Clinoptilolite—An Efficient Carrier for Catalytically Active Nano Oxide Particles",
number = "7",
pages = "877",
volume = "13",
doi = "10.3390/min13070877"
}

Pavlović, J.,& Rajić, N.. (2023). Clinoptilolite—An Efficient Carrier for Catalytically Active Nano Oxide Particles. in Minerals
MDPI., 13(7), 877.
https://doi.org/10.3390/min13070877

Pavlović J, Rajić N. Clinoptilolite—An Efficient Carrier for Catalytically Active Nano Oxide Particles. in Minerals. 2023;13(7):877.
doi:10.3390/min13070877 .

Pavlović, Jelena, Rajić, Nevenka, "Clinoptilolite—An Efficient Carrier for Catalytically Active Nano Oxide Particles" in Minerals, 13, no. 7 (2023):877,
https://doi.org/10.3390/min13070877 . .

TY  - JOUR
AU  - Pavlović, Jelena
AU  - Šuligoj, Andraž
AU  - Opresnik, Mojca
AU  - Tušar-Novak, Nataša
AU  - Zabukovec-Logar, Nataša
AU  - Rajić, Nevenka
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5051
AB  - The present study focuses on clinoptilolite (CLI)-rich natural zeolitic tuffs and their photocatalytic activity in the degradation of cationic organic dyes. CLI from different regions was tested in the photocatalytic degradation of methylene blue (MB) as a model cationic dye. The photocatalytic tests were performed at room temperature and atmospheric pressure under visible light irradiation. For all the CLI samples, the highest activity was observed at pH = 6. Total MB degradation varied between 70 and 91% (C0 = 10 mg dm–3, 0.2 g dm–3 of photocatalyst, during 300 min). It is suggested that the presence of Fe species in the studied tuffs is responsible for the photocatalytic activity. The activity increases linearly with the Fe content in the tuffs. The MB photodegradation follows the Langmuir–Hinshelwood kinetic model. The recyclability tests showed good stability and efficiency of the photocatalyst. The degradation rate decreased from 91 to 69% during three reaction cycles, indicating a promising potential of natural zeolites in the treatment of textile industry wastewater.
PB  - MDPI
T2  - Catalysts
T1  - Studies of Clinoptilolite-Rich Zeolitic Tuffs from Different Regions and Their Activity in Photodegradation of Methylene Blue
IS  - 2
SP  - 224
VL  - 12
DO  - https://doi.org/10.3390/catal12020224
ER  - 

@article{
author = "Pavlović, Jelena and Šuligoj, Andraž and Opresnik, Mojca and Tušar-Novak, Nataša and Zabukovec-Logar, Nataša and Rajić, Nevenka",
year = "2022",
abstract = "The present study focuses on clinoptilolite (CLI)-rich natural zeolitic tuffs and their photocatalytic activity in the degradation of cationic organic dyes. CLI from different regions was tested in the photocatalytic degradation of methylene blue (MB) as a model cationic dye. The photocatalytic tests were performed at room temperature and atmospheric pressure under visible light irradiation. For all the CLI samples, the highest activity was observed at pH = 6. Total MB degradation varied between 70 and 91% (C0 = 10 mg dm–3, 0.2 g dm–3 of photocatalyst, during 300 min). It is suggested that the presence of Fe species in the studied tuffs is responsible for the photocatalytic activity. The activity increases linearly with the Fe content in the tuffs. The MB photodegradation follows the Langmuir–Hinshelwood kinetic model. The recyclability tests showed good stability and efficiency of the photocatalyst. The degradation rate decreased from 91 to 69% during three reaction cycles, indicating a promising potential of natural zeolites in the treatment of textile industry wastewater.",
publisher = "MDPI",
journal = "Catalysts",
title = "Studies of Clinoptilolite-Rich Zeolitic Tuffs from Different Regions and Their Activity in Photodegradation of Methylene Blue",
number = "2",
pages = "224",
volume = "12",
doi = "https://doi.org/10.3390/catal12020224"
}

Pavlović, J., Šuligoj, A., Opresnik, M., Tušar-Novak, N., Zabukovec-Logar, N.,& Rajić, N.. (2022). Studies of Clinoptilolite-Rich Zeolitic Tuffs from Different Regions and Their Activity in Photodegradation of Methylene Blue. in Catalysts
MDPI., 12(2), 224.
https://doi.org/https://doi.org/10.3390/catal12020224

Pavlović J, Šuligoj A, Opresnik M, Tušar-Novak N, Zabukovec-Logar N, Rajić N. Studies of Clinoptilolite-Rich Zeolitic Tuffs from Different Regions and Their Activity in Photodegradation of Methylene Blue. in Catalysts. 2022;12(2):224.
doi:https://doi.org/10.3390/catal12020224 .

Pavlović, Jelena, Šuligoj, Andraž, Opresnik, Mojca, Tušar-Novak, Nataša, Zabukovec-Logar, Nataša, Rajić, Nevenka, "Studies of Clinoptilolite-Rich Zeolitic Tuffs from Different Regions and Their Activity in Photodegradation of Methylene Blue" in Catalysts, 12, no. 2 (2022):224,
https://doi.org/https://doi.org/10.3390/catal12020224 . .

TY  - CONF
AU  - Pavlović, Jelena
AU  - Šuligoj, Andraž
AU  - Rajić, Nevenka
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5156
AB  - Due to their structural complexity, chemical stability, and toxicity, organic dyes mostly used in the textile industry, cause serious environmental problems. Advanced Oxidation Processes (AOPs) currently appear to offer a high potential for complete degradation of organic dyes. The present work is focused on natural clinoptilolite (CLI) and its unusual photocatalytic activity. CLI from different regions were studied as photocatalysts in the photodegradation of methylene blue (MB) as a model cationic dye under visible light at room temperature and atmospheric pressure at different pH. For all CLI samples at pH = 6, the total degradation degree of MB varied from 74 to 88 %, thus indicating a high photocatalytic activity of CLI.
PB  - Croatian Zeolite Association
C3  - Proceedings of the 9th Croatian-Slovenian-Serbian Symposium on Zeolites
T1  - Photocatalytic removal of dyes from wastewater under solar lights by natural  clinoptilolite from different regions
UR  - https://hdl.handle.net/21.15107/rcub_technorep_5156
ER  - 

@conference{
author = "Pavlović, Jelena and Šuligoj, Andraž and Rajić, Nevenka",
year = "2021",
abstract = "Due to their structural complexity, chemical stability, and toxicity, organic dyes mostly used in the textile industry, cause serious environmental problems. Advanced Oxidation Processes (AOPs) currently appear to offer a high potential for complete degradation of organic dyes. The present work is focused on natural clinoptilolite (CLI) and its unusual photocatalytic activity. CLI from different regions were studied as photocatalysts in the photodegradation of methylene blue (MB) as a model cationic dye under visible light at room temperature and atmospheric pressure at different pH. For all CLI samples at pH = 6, the total degradation degree of MB varied from 74 to 88 %, thus indicating a high photocatalytic activity of CLI.",
publisher = "Croatian Zeolite Association",
journal = "Proceedings of the 9th Croatian-Slovenian-Serbian Symposium on Zeolites",
title = "Photocatalytic removal of dyes from wastewater under solar lights by natural  clinoptilolite from different regions",
url = "https://hdl.handle.net/21.15107/rcub_technorep_5156"
}

Pavlović, J., Šuligoj, A.,& Rajić, N.. (2021). Photocatalytic removal of dyes from wastewater under solar lights by natural  clinoptilolite from different regions. in Proceedings of the 9th Croatian-Slovenian-Serbian Symposium on Zeolites
Croatian Zeolite Association..
https://hdl.handle.net/21.15107/rcub_technorep_5156

Pavlović J, Šuligoj A, Rajić N. Photocatalytic removal of dyes from wastewater under solar lights by natural  clinoptilolite from different regions. in Proceedings of the 9th Croatian-Slovenian-Serbian Symposium on Zeolites. 2021;.
https://hdl.handle.net/21.15107/rcub_technorep_5156 .

Pavlović, Jelena, Šuligoj, Andraž, Rajić, Nevenka, "Photocatalytic removal of dyes from wastewater under solar lights by natural  clinoptilolite from different regions" in Proceedings of the 9th Croatian-Slovenian-Serbian Symposium on Zeolites (2021),
https://hdl.handle.net/21.15107/rcub_technorep_5156 .

TY  - CONF
AU  - Kalebić, Barbara
AU  - Pavlović, Jelena
AU  - Rajić, Nevenka
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5215
AB  - Natural zeolite – clinoptilolite (CLI) from Serbian deposit Slanci (near the capital city Belgrade) was
investigated as adsorbent for the adsorption of antibiotic ciprofloxacin (CIP) as a model organic micropollutant (OMP) present in wastewater. At 20 °C the adsorption capacity varies from 4.81 to 8.90 mg g-1 for the initial CIP solution concentration of 15 and 50 mg CIP dm–3, respectively. The adsorption isotherms at 10, 15 and 20 °C are best represented by the Langmuir model and the adsorption kinetics by the Lagergren's pseudosecond-order equation. The adsorption mechanism most probably involves an ion-exchange reaction occurred at the CLI surface and according to results of Weber-Morris model does not involve intra-particle diffusion.
PB  - Erciyes University
C3  - INTERNATIONAL CONFERENCE ON ENERGY, ENVIRONMENT AND STORAGE OF ENERGY ICEESEN 2020 (Conference Proceedings)gs
T1  - CLINOPTILOLITE AS A PERSPECTIVE LOW-COSTADSORBENT FOR REMOVAL OF ORGANIC MICROPOLLUTANTS FROM WASTEWATER
EP  - 423
SP  - 420
UR  - https://hdl.handle.net/21.15107/rcub_technorep_5215
ER  - 

@conference{
author = "Kalebić, Barbara and Pavlović, Jelena and Rajić, Nevenka",
year = "2020",
abstract = "Natural zeolite – clinoptilolite (CLI) from Serbian deposit Slanci (near the capital city Belgrade) was
investigated as adsorbent for the adsorption of antibiotic ciprofloxacin (CIP) as a model organic micropollutant (OMP) present in wastewater. At 20 °C the adsorption capacity varies from 4.81 to 8.90 mg g-1 for the initial CIP solution concentration of 15 and 50 mg CIP dm–3, respectively. The adsorption isotherms at 10, 15 and 20 °C are best represented by the Langmuir model and the adsorption kinetics by the Lagergren's pseudosecond-order equation. The adsorption mechanism most probably involves an ion-exchange reaction occurred at the CLI surface and according to results of Weber-Morris model does not involve intra-particle diffusion.",
publisher = "Erciyes University",
journal = "INTERNATIONAL CONFERENCE ON ENERGY, ENVIRONMENT AND STORAGE OF ENERGY ICEESEN 2020 (Conference Proceedings)gs",
title = "CLINOPTILOLITE AS A PERSPECTIVE LOW-COSTADSORBENT FOR REMOVAL OF ORGANIC MICROPOLLUTANTS FROM WASTEWATER",
pages = "423-420",
url = "https://hdl.handle.net/21.15107/rcub_technorep_5215"
}

Kalebić, B., Pavlović, J.,& Rajić, N.. (2020). CLINOPTILOLITE AS A PERSPECTIVE LOW-COSTADSORBENT FOR REMOVAL OF ORGANIC MICROPOLLUTANTS FROM WASTEWATER. in INTERNATIONAL CONFERENCE ON ENERGY, ENVIRONMENT AND STORAGE OF ENERGY ICEESEN 2020 (Conference Proceedings)gs
Erciyes University., 420-423.
https://hdl.handle.net/21.15107/rcub_technorep_5215

Kalebić B, Pavlović J, Rajić N. CLINOPTILOLITE AS A PERSPECTIVE LOW-COSTADSORBENT FOR REMOVAL OF ORGANIC MICROPOLLUTANTS FROM WASTEWATER. in INTERNATIONAL CONFERENCE ON ENERGY, ENVIRONMENT AND STORAGE OF ENERGY ICEESEN 2020 (Conference Proceedings)gs. 2020;:420-423.
https://hdl.handle.net/21.15107/rcub_technorep_5215 .

Kalebić, Barbara, Pavlović, Jelena, Rajić, Nevenka, "CLINOPTILOLITE AS A PERSPECTIVE LOW-COSTADSORBENT FOR REMOVAL OF ORGANIC MICROPOLLUTANTS FROM WASTEWATER" in INTERNATIONAL CONFERENCE ON ENERGY, ENVIRONMENT AND STORAGE OF ENERGY ICEESEN 2020 (Conference Proceedings)gs (2020):420-423,
https://hdl.handle.net/21.15107/rcub_technorep_5215 .

TY  - JOUR
AU  - Suligoj, Andraz
AU  - Pavlović, Jelena
AU  - Arcon, Iztok
AU  - Rajić, Nevenka
AU  - Novak-Tusar, Nataša
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4455
AB  - Due to their adsorbent, ion exchange and catalytic properties zeolites are suitable for a variety of applications. We report on the photocatalytic activity of a readily available and inexpensive natural zeolite clinoptilolite (Z) containing SnO2 (Sn-Z). The Sn-Z samples with 3-15 wt. % of Sn were prepared by using a precipitation-deposition method. Powder X-ray diffraction analysis showed that the zeolite structure was unaffected by the introduction of the Sn-phase. Diffuse reflectance UV/VIS spectra of the Sn-Z samples confirmed the presence of SnO2 and X-Ray absorption spectroscopy analyses suggested that the SnO2 particles mainly resided on the surface of the clinoptilolite, while ATR-FTIR analysis gave some clues that part of the SnO2 phase was incorporated in the pores of the zeolite. The presence of SnO2 in Sn-Z increased both adsorption capacity and photocatalytic performance which could be partially explained by higher surface area and partially with an increased negative potential of the surface. Adsorption and total degradation of methylene blue (MB) for the Sn-Z with the highest amount of Sn (15 wt.%) was about 30% and 45%, respectively, suggesting a synergetic effect between SnO2 and the clinoptilolite lattice. Reusability tests showed that these catalysts present a promising material for water purification.
PB  - MDPI, Basel
T2  - Catalysts
T1  - SnO2-Containing Clinoptilolite as a Composite Photocatalyst for Dyes Removal from Wastewater under Solar Light
IS  - 2
VL  - 10
DO  - 10.3390/catal10020253
ER  - 

@article{
author = "Suligoj, Andraz and Pavlović, Jelena and Arcon, Iztok and Rajić, Nevenka and Novak-Tusar, Nataša",
year = "2020",
abstract = "Due to their adsorbent, ion exchange and catalytic properties zeolites are suitable for a variety of applications. We report on the photocatalytic activity of a readily available and inexpensive natural zeolite clinoptilolite (Z) containing SnO2 (Sn-Z). The Sn-Z samples with 3-15 wt. % of Sn were prepared by using a precipitation-deposition method. Powder X-ray diffraction analysis showed that the zeolite structure was unaffected by the introduction of the Sn-phase. Diffuse reflectance UV/VIS spectra of the Sn-Z samples confirmed the presence of SnO2 and X-Ray absorption spectroscopy analyses suggested that the SnO2 particles mainly resided on the surface of the clinoptilolite, while ATR-FTIR analysis gave some clues that part of the SnO2 phase was incorporated in the pores of the zeolite. The presence of SnO2 in Sn-Z increased both adsorption capacity and photocatalytic performance which could be partially explained by higher surface area and partially with an increased negative potential of the surface. Adsorption and total degradation of methylene blue (MB) for the Sn-Z with the highest amount of Sn (15 wt.%) was about 30% and 45%, respectively, suggesting a synergetic effect between SnO2 and the clinoptilolite lattice. Reusability tests showed that these catalysts present a promising material for water purification.",
publisher = "MDPI, Basel",
journal = "Catalysts",
title = "SnO2-Containing Clinoptilolite as a Composite Photocatalyst for Dyes Removal from Wastewater under Solar Light",
number = "2",
volume = "10",
doi = "10.3390/catal10020253"
}

Suligoj, A., Pavlović, J., Arcon, I., Rajić, N.,& Novak-Tusar, N.. (2020). SnO2-Containing Clinoptilolite as a Composite Photocatalyst for Dyes Removal from Wastewater under Solar Light. in Catalysts
MDPI, Basel., 10(2).
https://doi.org/10.3390/catal10020253

Suligoj A, Pavlović J, Arcon I, Rajić N, Novak-Tusar N. SnO2-Containing Clinoptilolite as a Composite Photocatalyst for Dyes Removal from Wastewater under Solar Light. in Catalysts. 2020;10(2).
doi:10.3390/catal10020253 .

Suligoj, Andraz, Pavlović, Jelena, Arcon, Iztok, Rajić, Nevenka, Novak-Tusar, Nataša, "SnO2-Containing Clinoptilolite as a Composite Photocatalyst for Dyes Removal from Wastewater under Solar Light" in Catalysts, 10, no. 2 (2020),
https://doi.org/10.3390/catal10020253 . .

TY  - CONF
AU  - Dikić, Jelena
AU  - Pavlović, Jelena
AU  - Lukić, Ivana
AU  - Balošević, Svetlana
AU  - Rajić, Nevenka
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6480
AB  - Composites based on natural zeolite – clinoptilolite and thymol were prepared using
two different approaches: 1) wet impregnation (WI) and supercritical solvent impregnation
(SSI). The SSI was more superior since it yielded the composite with higher amount of
thymol and with stronger thymol-clinoptilolite interactions than WI. The composites
exhibited antibacterial activity towards Gram-negative bacteria Escherichia coli and Grampositive bacteria Staphylococcus aureus suggesting its applicability for disinfectant purposes.
PB  - Srpsko zeolitsko drustvo, Beograd
C3  - Proceedings of the 8th Serbian-Croatian-Slovenian Symposium on Zeolites
T1  - PREPARATION, CHARACTERIZATION AND ANTIBACTERIAL ACTIVITY OF CLINOPTILOLITE/THYMOL COMPOSITES
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6480
ER  - 

@conference{
author = "Dikić, Jelena and Pavlović, Jelena and Lukić, Ivana and Balošević, Svetlana and Rajić, Nevenka",
year = "2019",
abstract = "Composites based on natural zeolite – clinoptilolite and thymol were prepared using
two different approaches: 1) wet impregnation (WI) and supercritical solvent impregnation
(SSI). The SSI was more superior since it yielded the composite with higher amount of
thymol and with stronger thymol-clinoptilolite interactions than WI. The composites
exhibited antibacterial activity towards Gram-negative bacteria Escherichia coli and Grampositive bacteria Staphylococcus aureus suggesting its applicability for disinfectant purposes.",
publisher = "Srpsko zeolitsko drustvo, Beograd",
journal = "Proceedings of the 8th Serbian-Croatian-Slovenian Symposium on Zeolites",
title = "PREPARATION, CHARACTERIZATION AND ANTIBACTERIAL ACTIVITY OF CLINOPTILOLITE/THYMOL COMPOSITES",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6480"
}

Dikić, J., Pavlović, J., Lukić, I., Balošević, S.,& Rajić, N.. (2019). PREPARATION, CHARACTERIZATION AND ANTIBACTERIAL ACTIVITY OF CLINOPTILOLITE/THYMOL COMPOSITES. in Proceedings of the 8th Serbian-Croatian-Slovenian Symposium on Zeolites
Srpsko zeolitsko drustvo, Beograd..
https://hdl.handle.net/21.15107/rcub_technorep_6480

Dikić J, Pavlović J, Lukić I, Balošević S, Rajić N. PREPARATION, CHARACTERIZATION AND ANTIBACTERIAL ACTIVITY OF CLINOPTILOLITE/THYMOL COMPOSITES. in Proceedings of the 8th Serbian-Croatian-Slovenian Symposium on Zeolites. 2019;.
https://hdl.handle.net/21.15107/rcub_technorep_6480 .

Dikić, Jelena, Pavlović, Jelena, Lukić, Ivana, Balošević, Svetlana, Rajić, Nevenka, "PREPARATION, CHARACTERIZATION AND ANTIBACTERIAL ACTIVITY OF CLINOPTILOLITE/THYMOL COMPOSITES" in Proceedings of the 8th Serbian-Croatian-Slovenian Symposium on Zeolites (2019),
https://hdl.handle.net/21.15107/rcub_technorep_6480 .

TY  - JOUR
AU  - Radović, Marko N.
AU  - Adamović, Tijana
AU  - Pavlović, Jelena
AU  - Rusmirović, Jelena
AU  - Tadić, Vanja
AU  - Branković, Zorica
AU  - Ivanović, Jasna
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4232
AB  - Supercritical CO2 impregnation process was used for the first time to fabricate biodegradable gelatin-chitosan (G/Ch) films containing dove oil (CO) for potential use in active food packaging. All the impregnations were carried out at moderately low temperature (40 degrees C). Aiming to maximize CO loading in the films with acceptable morphological, structural and thermal properties, CO2 pressure, impregnation time and G:Ch mass ratio were varied. Gelatin fraction in the films of 25-50 wt. %, scCO(2) pressures of 10-20 MPa and impregnation time of 2-6 h impregnation favoured the CO loading. Processing of the film with equal gelatin to chitosan mass ratio (G/Ch(50:50)) at 10 MPa for 2 h yielded sufficiently high loading (56 mg CO/g(film)) without an adverse effect on morphological properties. The G/Ch(50:50) film was therefore chosen for structural and thermal analyses. ATR-FTIR analysis confirmed successful CO incorporation into the G/Ch(50:50) and its interaction with the film. Plasticizing effect of scCO(2) and CO on the film was evidenced by DSC. Incorporation of 56 mg CO/g(film) into the G/Ch(50:50) didn't affect thermal stability of the film. Beside environmental benefits, supercritical impregnation process enables fast fabrication of G/Ch bio-composite films containing CO, thermally stable to 110 degrees C, which is suitable for most of food packaging applications.
PB  - Savez hemijskih inženjera, Beograd
T2  - Chemical Industry & Chemical Engineering Quarterly
T1  - Supercritical co2 impregnation of gelatin-chitosan films with clove essential oil and characterization thereof
EP  - 130
IS  - 2
SP  - 119
VL  - 25
DO  - 10.2298/CICEQ180323025R
ER  - 

@article{
author = "Radović, Marko N. and Adamović, Tijana and Pavlović, Jelena and Rusmirović, Jelena and Tadić, Vanja and Branković, Zorica and Ivanović, Jasna",
year = "2019",
abstract = "Supercritical CO2 impregnation process was used for the first time to fabricate biodegradable gelatin-chitosan (G/Ch) films containing dove oil (CO) for potential use in active food packaging. All the impregnations were carried out at moderately low temperature (40 degrees C). Aiming to maximize CO loading in the films with acceptable morphological, structural and thermal properties, CO2 pressure, impregnation time and G:Ch mass ratio were varied. Gelatin fraction in the films of 25-50 wt. %, scCO(2) pressures of 10-20 MPa and impregnation time of 2-6 h impregnation favoured the CO loading. Processing of the film with equal gelatin to chitosan mass ratio (G/Ch(50:50)) at 10 MPa for 2 h yielded sufficiently high loading (56 mg CO/g(film)) without an adverse effect on morphological properties. The G/Ch(50:50) film was therefore chosen for structural and thermal analyses. ATR-FTIR analysis confirmed successful CO incorporation into the G/Ch(50:50) and its interaction with the film. Plasticizing effect of scCO(2) and CO on the film was evidenced by DSC. Incorporation of 56 mg CO/g(film) into the G/Ch(50:50) didn't affect thermal stability of the film. Beside environmental benefits, supercritical impregnation process enables fast fabrication of G/Ch bio-composite films containing CO, thermally stable to 110 degrees C, which is suitable for most of food packaging applications.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Chemical Industry & Chemical Engineering Quarterly",
title = "Supercritical co2 impregnation of gelatin-chitosan films with clove essential oil and characterization thereof",
pages = "130-119",
number = "2",
volume = "25",
doi = "10.2298/CICEQ180323025R"
}

Radović, M. N., Adamović, T., Pavlović, J., Rusmirović, J., Tadić, V., Branković, Z.,& Ivanović, J.. (2019). Supercritical co2 impregnation of gelatin-chitosan films with clove essential oil and characterization thereof. in Chemical Industry & Chemical Engineering Quarterly
Savez hemijskih inženjera, Beograd., 25(2), 119-130.
https://doi.org/10.2298/CICEQ180323025R

Radović MN, Adamović T, Pavlović J, Rusmirović J, Tadić V, Branković Z, Ivanović J. Supercritical co2 impregnation of gelatin-chitosan films with clove essential oil and characterization thereof. in Chemical Industry & Chemical Engineering Quarterly. 2019;25(2):119-130.
doi:10.2298/CICEQ180323025R .

Radović, Marko N., Adamović, Tijana, Pavlović, Jelena, Rusmirović, Jelena, Tadić, Vanja, Branković, Zorica, Ivanović, Jasna, "Supercritical co2 impregnation of gelatin-chitosan films with clove essential oil and characterization thereof" in Chemical Industry & Chemical Engineering Quarterly, 25, no. 2 (2019):119-130,
https://doi.org/10.2298/CICEQ180323025R . .

TY  - CONF
AU  - Pavlović, Jelena
AU  - Popović, Aleksandra
AU  - Rečnik, Aleksander
AU  - Rajić, Nevenka
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6854
AB  - Due to structural complexity and toxicity of organic dyes their presence in water body
causes usually serious environmental problems. Advanced Oxidation Processes (AOPs) have
been recognized as effective methods for a complete degradation of organic dyes. In this
study, Serbian natural zeolite (clinoptilolite) loaded with Fe(III) was used for the preparation
of a photocatalyst and its catalytic activity was tested in the photodegradation of methylene
blue (MB) as a model cationic dye under visible light at room temperature and atmospheric
pressure. It is showed that the prepared Fe(III)-containing clinoptilolite (FeZ) can be used as
active and recyclable photocatalyst in degradation of MB.
PB  - Belgrade : Serbian Zeolite Association (SZA)
C3  - Proceedings / 8th Serbian-Croatian-Slovenian Symposium on Zeolites, 3 - 5 October 2019, Belgrade, Serbia
T1  - Photocatalytic activity of Fe(III)-loaded clinoptilolite in the degradation of methylene blue as a model pollutant
EP  - 65
SP  - 62
DO  - 978-86-916637-2-8
ER  - 

@conference{
author = "Pavlović, Jelena and Popović, Aleksandra and Rečnik, Aleksander and Rajić, Nevenka",
year = "2019",
abstract = "Due to structural complexity and toxicity of organic dyes their presence in water body
causes usually serious environmental problems. Advanced Oxidation Processes (AOPs) have
been recognized as effective methods for a complete degradation of organic dyes. In this
study, Serbian natural zeolite (clinoptilolite) loaded with Fe(III) was used for the preparation
of a photocatalyst and its catalytic activity was tested in the photodegradation of methylene
blue (MB) as a model cationic dye under visible light at room temperature and atmospheric
pressure. It is showed that the prepared Fe(III)-containing clinoptilolite (FeZ) can be used as
active and recyclable photocatalyst in degradation of MB.",
publisher = "Belgrade : Serbian Zeolite Association (SZA)",
journal = "Proceedings / 8th Serbian-Croatian-Slovenian Symposium on Zeolites, 3 - 5 October 2019, Belgrade, Serbia",
title = "Photocatalytic activity of Fe(III)-loaded clinoptilolite in the degradation of methylene blue as a model pollutant",
pages = "65-62",
doi = "978-86-916637-2-8"
}

Pavlović, J., Popović, A., Rečnik, A.,& Rajić, N.. (2019). Photocatalytic activity of Fe(III)-loaded clinoptilolite in the degradation of methylene blue as a model pollutant. in Proceedings / 8th Serbian-Croatian-Slovenian Symposium on Zeolites, 3 - 5 October 2019, Belgrade, Serbia
Belgrade : Serbian Zeolite Association (SZA)., 62-65.
https://doi.org/978-86-916637-2-8

Pavlović J, Popović A, Rečnik A, Rajić N. Photocatalytic activity of Fe(III)-loaded clinoptilolite in the degradation of methylene blue as a model pollutant. in Proceedings / 8th Serbian-Croatian-Slovenian Symposium on Zeolites, 3 - 5 October 2019, Belgrade, Serbia. 2019;:62-65.
doi:978-86-916637-2-8 .

Pavlović, Jelena, Popović, Aleksandra, Rečnik, Aleksander, Rajić, Nevenka, "Photocatalytic activity of Fe(III)-loaded clinoptilolite in the degradation of methylene blue as a model pollutant" in Proceedings / 8th Serbian-Croatian-Slovenian Symposium on Zeolites, 3 - 5 October 2019, Belgrade, Serbia (2019):62-65,
https://doi.org/978-86-916637-2-8 . .

TY  - JOUR
AU  - Pavlović, Jelena
AU  - Popova, M.
AU  - Mihalyi, R. M.
AU  - Mazaj, Matjaz
AU  - Mali, Gregor
AU  - Kovač, Janez
AU  - Lazarova, H.
AU  - Rajić, Nevenka
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4157
AB  - Catalysts based on natural zeolite - clinoptilolite loaded with either SnO2 (TOHCLI) or sulfated SnO2 (STOHCLI) were prepared and tested in the esterification of levulinic acid (LA) with octanol or ethanol. The Sn content in TOHCLI and STOHCLI varied from 4.5 to 12.3 wt.%. The catalysts were characterized by powder X-ray diffraction method, scanning electron microscopy coupled with energy dispersive X-ray spectroscopy, thermal analysis, X-ray photoelectron spectroscopy, NZ physisorption at - 196 degrees C, (27)A1 and Si-29 MAS NMR solid state spectroscopy and FTIR spectroscopy for analysis of acidic centers. A high conversion rate of LA into octyl- (OLA) or ethyl levulinate (ELA) was obtained for both TOHCLI and STOHCLI. TOHCLI showed a high activity in the conversion of LA into OLA (55%) and a moderate activity in the conversion to ELA (22%). STOHCLI led to a total conversion of LA to OLA and ELA due to the presence of a high amount of Bronsted and Lewis acid sites in the catalysts. The catalytic activity decreased to 86% for OLA and to 66% for ELA after next five cycles. Lower catalytic activity in the repeated cycles during ELA formation was explained by pore blockage due to coke formation.
PB  - Elsevier B.V.
T2  - Microporous and Mesoporous Materials
T1  - Catalytic activity of SnO2- and SO4 /SnO2-containing clinoptilolite in the esterification of levulinic acid
EP  - 18
SP  - 10
VL  - 279
DO  - 10.1016/j.micromeso.2018.12.009
ER  - 

@article{
author = "Pavlović, Jelena and Popova, M. and Mihalyi, R. M. and Mazaj, Matjaz and Mali, Gregor and Kovač, Janez and Lazarova, H. and Rajić, Nevenka",
year = "2019",
abstract = "Catalysts based on natural zeolite - clinoptilolite loaded with either SnO2 (TOHCLI) or sulfated SnO2 (STOHCLI) were prepared and tested in the esterification of levulinic acid (LA) with octanol or ethanol. The Sn content in TOHCLI and STOHCLI varied from 4.5 to 12.3 wt.%. The catalysts were characterized by powder X-ray diffraction method, scanning electron microscopy coupled with energy dispersive X-ray spectroscopy, thermal analysis, X-ray photoelectron spectroscopy, NZ physisorption at - 196 degrees C, (27)A1 and Si-29 MAS NMR solid state spectroscopy and FTIR spectroscopy for analysis of acidic centers. A high conversion rate of LA into octyl- (OLA) or ethyl levulinate (ELA) was obtained for both TOHCLI and STOHCLI. TOHCLI showed a high activity in the conversion of LA into OLA (55%) and a moderate activity in the conversion to ELA (22%). STOHCLI led to a total conversion of LA to OLA and ELA due to the presence of a high amount of Bronsted and Lewis acid sites in the catalysts. The catalytic activity decreased to 86% for OLA and to 66% for ELA after next five cycles. Lower catalytic activity in the repeated cycles during ELA formation was explained by pore blockage due to coke formation.",
publisher = "Elsevier B.V.",
journal = "Microporous and Mesoporous Materials",
title = "Catalytic activity of SnO2- and SO4 /SnO2-containing clinoptilolite in the esterification of levulinic acid",
pages = "18-10",
volume = "279",
doi = "10.1016/j.micromeso.2018.12.009"
}

Pavlović, J., Popova, M., Mihalyi, R. M., Mazaj, M., Mali, G., Kovač, J., Lazarova, H.,& Rajić, N.. (2019). Catalytic activity of SnO2- and SO4 /SnO2-containing clinoptilolite in the esterification of levulinic acid. in Microporous and Mesoporous Materials
Elsevier B.V.., 279, 10-18.
https://doi.org/10.1016/j.micromeso.2018.12.009

Pavlović J, Popova M, Mihalyi RM, Mazaj M, Mali G, Kovač J, Lazarova H, Rajić N. Catalytic activity of SnO2- and SO4 /SnO2-containing clinoptilolite in the esterification of levulinic acid. in Microporous and Mesoporous Materials. 2019;279:10-18.
doi:10.1016/j.micromeso.2018.12.009 .

Pavlović, Jelena, Popova, M., Mihalyi, R. M., Mazaj, Matjaz, Mali, Gregor, Kovač, Janez, Lazarova, H., Rajić, Nevenka, "Catalytic activity of SnO2- and SO4 /SnO2-containing clinoptilolite in the esterification of levulinic acid" in Microporous and Mesoporous Materials, 279 (2019):10-18,
https://doi.org/10.1016/j.micromeso.2018.12.009 . .

TY  - JOUR
AU  - Pavlović, Jelena
AU  - Popova, M.
AU  - Mihalyi, R. M.
AU  - Mazaj, Matjaz
AU  - Mali, Gregor
AU  - Kovač, Janez
AU  - Lazarova, H.
AU  - Rajić, Nevenka
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5042
AB  - Catalysts based on natural zeolite – clinoptilolite loaded with either SnO2 (TOHCLI) or sulfated SnO2 (STOHCLI) were prepared and tested in the esterification of levulinic acid (LA) with octanol or ethanol. The Sn content in TOHCLI and STOHCLI varied from 4.5 to 12.3 wt.%. The catalysts were characterized by powder X-ray diffraction method, scanning electron microscopy coupled with energy dispersive X-ray spectroscopy, thermal analysis, X-ray photoelectron spectroscopy, N2 physisorption at −196 °C, 27Al and 29Si MAS NMR solid state spectroscopy and FTIR spectroscopy for analysis of acidic centers. A high conversion rate of LA into octyl- (OLA) or ethyl levulinate (ELA) was obtained for both TOHCLI and STOHCLI. TOHCLI showed a high activity in the conversion of LA into OLA (55%) and a moderate activity in the conversion to ELA (22%). STOHCLI led to a total conversion of LA to OLA and ELA due to the presence of a high amount of Brønsted and Lewis acid sites in the catalysts. The catalytic activity decreased to 86% for OLA and to 66% for ELA after next five cycles. Lower catalytic activity in the repeated cycles during ELA formation was explained by pore blockage due to coke formation.
PB  - Elsevier B.V.
T2  - Microporous and Mesoporous Materials
T1  - Catalytic activity of SnO2- and SO4/SnO2-containing clinoptilolite in the esterification of levulinic acid
EP  - 18
SP  - 10
VL  - 279
DO  - 10.1016/j.micromeso.2018.12.009
ER  - 

@article{
author = "Pavlović, Jelena and Popova, M. and Mihalyi, R. M. and Mazaj, Matjaz and Mali, Gregor and Kovač, Janez and Lazarova, H. and Rajić, Nevenka",
year = "2019",
abstract = "Catalysts based on natural zeolite – clinoptilolite loaded with either SnO2 (TOHCLI) or sulfated SnO2 (STOHCLI) were prepared and tested in the esterification of levulinic acid (LA) with octanol or ethanol. The Sn content in TOHCLI and STOHCLI varied from 4.5 to 12.3 wt.%. The catalysts were characterized by powder X-ray diffraction method, scanning electron microscopy coupled with energy dispersive X-ray spectroscopy, thermal analysis, X-ray photoelectron spectroscopy, N2 physisorption at −196 °C, 27Al and 29Si MAS NMR solid state spectroscopy and FTIR spectroscopy for analysis of acidic centers. A high conversion rate of LA into octyl- (OLA) or ethyl levulinate (ELA) was obtained for both TOHCLI and STOHCLI. TOHCLI showed a high activity in the conversion of LA into OLA (55%) and a moderate activity in the conversion to ELA (22%). STOHCLI led to a total conversion of LA to OLA and ELA due to the presence of a high amount of Brønsted and Lewis acid sites in the catalysts. The catalytic activity decreased to 86% for OLA and to 66% for ELA after next five cycles. Lower catalytic activity in the repeated cycles during ELA formation was explained by pore blockage due to coke formation.",
publisher = "Elsevier B.V.",
journal = "Microporous and Mesoporous Materials",
title = "Catalytic activity of SnO2- and SO4/SnO2-containing clinoptilolite in the esterification of levulinic acid",
pages = "18-10",
volume = "279",
doi = "10.1016/j.micromeso.2018.12.009"
}

Pavlović, J., Popova, M., Mihalyi, R. M., Mazaj, M., Mali, G., Kovač, J., Lazarova, H.,& Rajić, N.. (2019). Catalytic activity of SnO2- and SO4/SnO2-containing clinoptilolite in the esterification of levulinic acid. in Microporous and Mesoporous Materials
Elsevier B.V.., 279, 10-18.
https://doi.org/10.1016/j.micromeso.2018.12.009

Pavlović J, Popova M, Mihalyi RM, Mazaj M, Mali G, Kovač J, Lazarova H, Rajić N. Catalytic activity of SnO2- and SO4/SnO2-containing clinoptilolite in the esterification of levulinic acid. in Microporous and Mesoporous Materials. 2019;279:10-18.
doi:10.1016/j.micromeso.2018.12.009 .

Pavlović, Jelena, Popova, M., Mihalyi, R. M., Mazaj, Matjaz, Mali, Gregor, Kovač, Janez, Lazarova, H., Rajić, Nevenka, "Catalytic activity of SnO2- and SO4/SnO2-containing clinoptilolite in the esterification of levulinic acid" in Microporous and Mesoporous Materials, 279 (2019):10-18,
https://doi.org/10.1016/j.micromeso.2018.12.009 . .

TY  - JOUR
AU  - Milenković, Jelena
AU  - Pavlović, Jelena
AU  - Rečnik, Aleksander
AU  - Filipović, Ana
AU  - Chmielewska, Eva
AU  - Rajić, Nevenka
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5078
AB  - In this study we prepared adsorbents on the basis of clinoptilolite-rich zeolitic tuff (Slanci deposit, Beograd), and chitosan, as well as partially cross-linked chitosan by glutaraldehyde. We investigated removal rate of nickel and zinc ions from the aqueous solution by both adsorbents at 25 °C, adsorption isotherms, adsorption kinetics, regeneration of spent adsorbents and their antibacterial activity. Removal rate of both adsorbents for both studied cations was significantly increased in comparison to unmodified clinoptilolite. The adsorption isotherm for Ni (II) followed the Langmuir model, while isotherm for Zn was in accord with the the Freundlich equation. Adsorption kinetics followed the Lagergren pseudo-second order kinetic model for both adsorbents and cations. The adsorbents can be regenerated to a large extent after use. Unlike unmodified clinoptilolite-based adsorbents, spent adsorbents did not show antibacterial activity. This was ascribed to interactions between chitosan coating and clinoptilolite.
AB  - U radu su pripremljeni adsorbensi na bazi zeolitskog tufa bogatog klinoptilolitom (ležište Slanci, Beograd) i hitozana, kao i hitozana koji je delimično umrežen glutaraldehidom. Ispitana je efikasnost uklanjanja jona nikla i cinka iz vodenog rastvora pomoću oba adsorbensa na 25 oC, adsorpcione izoterme, kinetika adsorpcije, regeneracija istrošenih adsorbenasa i njihova antibakterijska aktivnost. Efikasnost uklanjanja oba ispitivana katjona značajno se povećava nakon modifikacije. Adsorpciona izoterma Ni(II) sledi Langmirovu, dok Zn(II) Frojndlihovu izotermu. Kinetika adsorpcije odgovara Lagergrenovom modelu pseudodrugog reda. Oba adsorbensa se mogu u velikom stepenu regenerisati nakon upotrebe. Istrošeni adsorbensi, za razliku od nemodifikovanog klinotpilolita, ne pokazuju antibakterijsku aktivnost. Ovo je pripisano interakcijama hitozana sa klinoptilolitom
PB  - Inženjerska komora Srbije
T2  - Ecologica
T1  - Ispitivanje adsorpcionih svojstava elektrofilterskog pepela sa deponije termoelektrane „Moravaˮ u odnosu na fosfat-jone prisutne u rastvoru
EP  - 653
IS  - 91
SP  - 657
VL  - 25
UR  - https://hdl.handle.net/21.15107/rcub_technorep_5078
ER  - 

@article{
author = "Milenković, Jelena and Pavlović, Jelena and Rečnik, Aleksander and Filipović, Ana and Chmielewska, Eva and Rajić, Nevenka",
year = "2018",
abstract = "In this study we prepared adsorbents on the basis of clinoptilolite-rich zeolitic tuff (Slanci deposit, Beograd), and chitosan, as well as partially cross-linked chitosan by glutaraldehyde. We investigated removal rate of nickel and zinc ions from the aqueous solution by both adsorbents at 25 °C, adsorption isotherms, adsorption kinetics, regeneration of spent adsorbents and their antibacterial activity. Removal rate of both adsorbents for both studied cations was significantly increased in comparison to unmodified clinoptilolite. The adsorption isotherm for Ni (II) followed the Langmuir model, while isotherm for Zn was in accord with the the Freundlich equation. Adsorption kinetics followed the Lagergren pseudo-second order kinetic model for both adsorbents and cations. The adsorbents can be regenerated to a large extent after use. Unlike unmodified clinoptilolite-based adsorbents, spent adsorbents did not show antibacterial activity. This was ascribed to interactions between chitosan coating and clinoptilolite., U radu su pripremljeni adsorbensi na bazi zeolitskog tufa bogatog klinoptilolitom (ležište Slanci, Beograd) i hitozana, kao i hitozana koji je delimično umrežen glutaraldehidom. Ispitana je efikasnost uklanjanja jona nikla i cinka iz vodenog rastvora pomoću oba adsorbensa na 25 oC, adsorpcione izoterme, kinetika adsorpcije, regeneracija istrošenih adsorbenasa i njihova antibakterijska aktivnost. Efikasnost uklanjanja oba ispitivana katjona značajno se povećava nakon modifikacije. Adsorpciona izoterma Ni(II) sledi Langmirovu, dok Zn(II) Frojndlihovu izotermu. Kinetika adsorpcije odgovara Lagergrenovom modelu pseudodrugog reda. Oba adsorbensa se mogu u velikom stepenu regenerisati nakon upotrebe. Istrošeni adsorbensi, za razliku od nemodifikovanog klinotpilolita, ne pokazuju antibakterijsku aktivnost. Ovo je pripisano interakcijama hitozana sa klinoptilolitom",
publisher = "Inženjerska komora Srbije",
journal = "Ecologica",
title = "Ispitivanje adsorpcionih svojstava elektrofilterskog pepela sa deponije termoelektrane „Moravaˮ u odnosu na fosfat-jone prisutne u rastvoru",
pages = "653-657",
number = "91",
volume = "25",
url = "https://hdl.handle.net/21.15107/rcub_technorep_5078"
}

Milenković, J., Pavlović, J., Rečnik, A., Filipović, A., Chmielewska, E.,& Rajić, N.. (2018). Ispitivanje adsorpcionih svojstava elektrofilterskog pepela sa deponije termoelektrane „Moravaˮ u odnosu na fosfat-jone prisutne u rastvoru. in Ecologica
Inženjerska komora Srbije., 25(91), 657-653.
https://hdl.handle.net/21.15107/rcub_technorep_5078

Milenković J, Pavlović J, Rečnik A, Filipović A, Chmielewska E, Rajić N. Ispitivanje adsorpcionih svojstava elektrofilterskog pepela sa deponije termoelektrane „Moravaˮ u odnosu na fosfat-jone prisutne u rastvoru. in Ecologica. 2018;25(91):657-653.
https://hdl.handle.net/21.15107/rcub_technorep_5078 .

Milenković, Jelena, Pavlović, Jelena, Rečnik, Aleksander, Filipović, Ana, Chmielewska, Eva, Rajić, Nevenka, "Ispitivanje adsorpcionih svojstava elektrofilterskog pepela sa deponije termoelektrane „Moravaˮ u odnosu na fosfat-jone prisutne u rastvoru" in Ecologica, 25, no. 91 (2018):657-653,
https://hdl.handle.net/21.15107/rcub_technorep_5078 .

TY  - CONF
AU  - Rajić, Nevenka
AU  - Milenković, J.
AU  - Pavlović, J.
AU  - Jevtić, S.
AU  - Kaplanec, I.
AU  - Rečnik, A.
AU  - Hrenović, J.
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5076
AB  - Clinoptilolite is the most abundant natural zeolite in Serbia, and the Zlatokop deposit (near Vranjska Banja) is the largest deposit. The zeolitic tuff (CT) from Zlatokop contains >70 wt. % clinoptilolite with quartz and feldspar as major mineral impurities. Considering the high clinoptilolite content in the CT, this tuff has been studied in detail as an adsorbent, catalyst carrier and antimicrobial agent.  We evaluated the cation-exchange capacity for several toxic metal cations, the sorption efficiency for several anions, the catalytic activity in the processes of valorization of biomass, and the antimicrobial activity of the CT.
PB  - Lublin University of Technology, Nadbystrzycka 40 20-618 Lublin
C3  - 10th International Conference on the Occurrence,  Properties and Utilization of Natural Zeolites (Book of Abstracts)
T1  - Adsorptive, catalytic and antimicrobial applications of Serbian natural clinoptilolite
EP  - 80
SP  - 79
UR  - https://hdl.handle.net/21.15107/rcub_technorep_5076
ER  - 

@conference{
author = "Rajić, Nevenka and Milenković, J. and Pavlović, J. and Jevtić, S. and Kaplanec, I. and Rečnik, A. and Hrenović, J.",
year = "2018",
abstract = "Clinoptilolite is the most abundant natural zeolite in Serbia, and the Zlatokop deposit (near Vranjska Banja) is the largest deposit. The zeolitic tuff (CT) from Zlatokop contains >70 wt. % clinoptilolite with quartz and feldspar as major mineral impurities. Considering the high clinoptilolite content in the CT, this tuff has been studied in detail as an adsorbent, catalyst carrier and antimicrobial agent.  We evaluated the cation-exchange capacity for several toxic metal cations, the sorption efficiency for several anions, the catalytic activity in the processes of valorization of biomass, and the antimicrobial activity of the CT.",
publisher = "Lublin University of Technology, Nadbystrzycka 40 20-618 Lublin",
journal = "10th International Conference on the Occurrence,  Properties and Utilization of Natural Zeolites (Book of Abstracts)",
title = "Adsorptive, catalytic and antimicrobial applications of Serbian natural clinoptilolite",
pages = "80-79",
url = "https://hdl.handle.net/21.15107/rcub_technorep_5076"
}

Rajić, N., Milenković, J., Pavlović, J., Jevtić, S., Kaplanec, I., Rečnik, A.,& Hrenović, J.. (2018). Adsorptive, catalytic and antimicrobial applications of Serbian natural clinoptilolite. in 10th International Conference on the Occurrence,  Properties and Utilization of Natural Zeolites (Book of Abstracts)
Lublin University of Technology, Nadbystrzycka 40 20-618 Lublin., 79-80.
https://hdl.handle.net/21.15107/rcub_technorep_5076

Rajić N, Milenković J, Pavlović J, Jevtić S, Kaplanec I, Rečnik A, Hrenović J. Adsorptive, catalytic and antimicrobial applications of Serbian natural clinoptilolite. in 10th International Conference on the Occurrence,  Properties and Utilization of Natural Zeolites (Book of Abstracts). 2018;:79-80.
https://hdl.handle.net/21.15107/rcub_technorep_5076 .

Rajić, Nevenka, Milenković, J., Pavlović, J., Jevtić, S., Kaplanec, I., Rečnik, A., Hrenović, J., "Adsorptive, catalytic and antimicrobial applications of Serbian natural clinoptilolite" in 10th International Conference on the Occurrence,  Properties and Utilization of Natural Zeolites (Book of Abstracts) (2018):79-80,
https://hdl.handle.net/21.15107/rcub_technorep_5076 .

TY  - JOUR
AU  - Pavlović, Jelena
AU  - Krogstad, Tore
AU  - Rajić, Nevenka
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3600
AB  - Environmental protection and sustainable agricultural production require the use of inexpensive and environmentally acceptable soil supplements. Objectives of this study were to investigate the influence of the addition of the natural zeolite - clinoptilolite (NZ) and its iron(III)-modified form (FeZ) on the potassium and nitrate leaching from sandy, silty loam and silty clay soils. The zeolites were added in two amounts: 0.5 (FeZ) and 1.0 wt. % (NZ and FeZ). The experiments were carried out in columns organized in eight experimental systems containing unamended (control specimens) and amended soils. The concentration of K+ and NO3-N in the leachates was monitored during 7 days. The obtained results indicate that the K+ and NO3-N leaching mainly depends on the soil type and pH of the soil. The NZ and FeZ addition has the highest impact on the K+ retention in the acidic sandy soil. The highest NO3-N retention is obtained with FeZ in acidic silty loam soil. The K+ leaching kinetics for all the studied soils follow the Avrami kinetics model with the parameter n  lt  1. This study demonstrates that NZ and FeZ can be a good soil supplement for the K+ retention for all studied soils and in the NO3-N retention for silty loam and silty clay soils.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Applicability of zeolites in potassium and nitrate retention in different soil types
EP  - 1314
IS  - 11
SP  - 1303
VL  - 82
DO  - 10.2298/JSC170704106P
ER  - 

@article{
author = "Pavlović, Jelena and Krogstad, Tore and Rajić, Nevenka",
year = "2017",
abstract = "Environmental protection and sustainable agricultural production require the use of inexpensive and environmentally acceptable soil supplements. Objectives of this study were to investigate the influence of the addition of the natural zeolite - clinoptilolite (NZ) and its iron(III)-modified form (FeZ) on the potassium and nitrate leaching from sandy, silty loam and silty clay soils. The zeolites were added in two amounts: 0.5 (FeZ) and 1.0 wt. % (NZ and FeZ). The experiments were carried out in columns organized in eight experimental systems containing unamended (control specimens) and amended soils. The concentration of K+ and NO3-N in the leachates was monitored during 7 days. The obtained results indicate that the K+ and NO3-N leaching mainly depends on the soil type and pH of the soil. The NZ and FeZ addition has the highest impact on the K+ retention in the acidic sandy soil. The highest NO3-N retention is obtained with FeZ in acidic silty loam soil. The K+ leaching kinetics for all the studied soils follow the Avrami kinetics model with the parameter n  lt  1. This study demonstrates that NZ and FeZ can be a good soil supplement for the K+ retention for all studied soils and in the NO3-N retention for silty loam and silty clay soils.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Applicability of zeolites in potassium and nitrate retention in different soil types",
pages = "1314-1303",
number = "11",
volume = "82",
doi = "10.2298/JSC170704106P"
}

Pavlović, J., Krogstad, T.,& Rajić, N.. (2017). Applicability of zeolites in potassium and nitrate retention in different soil types. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 82(11), 1303-1314.
https://doi.org/10.2298/JSC170704106P

Pavlović J, Krogstad T, Rajić N. Applicability of zeolites in potassium and nitrate retention in different soil types. in Journal of the Serbian Chemical Society. 2017;82(11):1303-1314.
doi:10.2298/JSC170704106P .

Pavlović, Jelena, Krogstad, Tore, Rajić, Nevenka, "Applicability of zeolites in potassium and nitrate retention in different soil types" in Journal of the Serbian Chemical Society, 82, no. 11 (2017):1303-1314,
https://doi.org/10.2298/JSC170704106P . .

TY  - JOUR
AU  - Pavlović, Jelena
AU  - Krogstad, Tore
AU  - Rajić, Nevenka
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3199
AB  - Influence of the iron(III)-modified clinoptilolite (FeCLI) on phosphorus leaching from two different Norwegian soil types (sand and clay loam soil) was studied using a column system at room temperature. FeCLI was used in different amounts of 0.5, 1.5 and 2.5 wt. %. The obtained results indicate that the presence of FeCLI causing a reduction of phosphorus leaching from both soil types. The reduction efficiency increases with the FeCLI amount. Addition of 2.5 wt.% FeCLI to the soils decreased the phosphorus leaching by 48 % from clay loam soil and by 42 % from sand soil compared to the control systems. FeCLI also increased pH of the soils from 5.1 to 7.0 for sand and from 5.7 to 7.7 for clay loam soil. All obtained results indicate that FeCLI is a promising soil supplement for the studied soil types due to phosphorus preservation and a decrease of soil acidity.
AB  - U radu je ispitivan uticaj gvožđe(III)- modifikovanog klinoptilolita (FeCLI) na izluživanje fosfora iz dve različite vrste norveškog zemljišta (pesak i glinovita ilovača). Eksperimenti su izvedeni u kolonama na sobnoj temperaturi. FeCLI je dodavan u različitim koncentracijama 0,5; 1,5 i 2,5 mas. %. Dobijeni rezultati ukazuju da FeCLI doprinosi smanjenju izluživanja fosfora kako iz peskovitog, tako i iz glinovito ilovačastog zemljišta. Efikasnost FeCLI raste sa povećanjem koncentracije FeCLI u zemljištu. U koncentraciji 2,5 mas.% FeCLI smanjuje izluživanje fosfora za 48 % (iz glinovite ilovače) i 42 % (iz peskovitog zemljišta). Takođe, FeCLI povećava pH zemljišta: od 5,1 do 7,0 (pesak) i 5,7 do 7,7 (glinovita ilovača). Dobijeni rezultati ukazuju da je FeCLI perspektivan suplement koji doprinosi zadržavanju fosfora u zemljištu i smanjenju kiselosti obe vrste ispitivanih zemljišta.
PB  - Engineering Society for Corrosion, Belgrade, Serbia
T2  - Zaštita materijala
T1  - Influence of the Fe(III): Modified clinoptilolite on phosphorus leaching from different soil types
T1  - Uticaj Fe(III)- modifikovanog klinoptilolita na izluživanje fosfora iz različitih vrsta zemljišta
EP  - 544
IS  - 4
SP  - 539
VL  - 57
DO  - 10.5937/ZasMat1604539P
ER  - 

@article{
author = "Pavlović, Jelena and Krogstad, Tore and Rajić, Nevenka",
year = "2016",
abstract = "Influence of the iron(III)-modified clinoptilolite (FeCLI) on phosphorus leaching from two different Norwegian soil types (sand and clay loam soil) was studied using a column system at room temperature. FeCLI was used in different amounts of 0.5, 1.5 and 2.5 wt. %. The obtained results indicate that the presence of FeCLI causing a reduction of phosphorus leaching from both soil types. The reduction efficiency increases with the FeCLI amount. Addition of 2.5 wt.% FeCLI to the soils decreased the phosphorus leaching by 48 % from clay loam soil and by 42 % from sand soil compared to the control systems. FeCLI also increased pH of the soils from 5.1 to 7.0 for sand and from 5.7 to 7.7 for clay loam soil. All obtained results indicate that FeCLI is a promising soil supplement for the studied soil types due to phosphorus preservation and a decrease of soil acidity., U radu je ispitivan uticaj gvožđe(III)- modifikovanog klinoptilolita (FeCLI) na izluživanje fosfora iz dve različite vrste norveškog zemljišta (pesak i glinovita ilovača). Eksperimenti su izvedeni u kolonama na sobnoj temperaturi. FeCLI je dodavan u različitim koncentracijama 0,5; 1,5 i 2,5 mas. %. Dobijeni rezultati ukazuju da FeCLI doprinosi smanjenju izluživanja fosfora kako iz peskovitog, tako i iz glinovito ilovačastog zemljišta. Efikasnost FeCLI raste sa povećanjem koncentracije FeCLI u zemljištu. U koncentraciji 2,5 mas.% FeCLI smanjuje izluživanje fosfora za 48 % (iz glinovite ilovače) i 42 % (iz peskovitog zemljišta). Takođe, FeCLI povećava pH zemljišta: od 5,1 do 7,0 (pesak) i 5,7 do 7,7 (glinovita ilovača). Dobijeni rezultati ukazuju da je FeCLI perspektivan suplement koji doprinosi zadržavanju fosfora u zemljištu i smanjenju kiselosti obe vrste ispitivanih zemljišta.",
publisher = "Engineering Society for Corrosion, Belgrade, Serbia",
journal = "Zaštita materijala",
title = "Influence of the Fe(III): Modified clinoptilolite on phosphorus leaching from different soil types, Uticaj Fe(III)- modifikovanog klinoptilolita na izluživanje fosfora iz različitih vrsta zemljišta",
pages = "544-539",
number = "4",
volume = "57",
doi = "10.5937/ZasMat1604539P"
}

Pavlović, J., Krogstad, T.,& Rajić, N.. (2016). Influence of the Fe(III): Modified clinoptilolite on phosphorus leaching from different soil types. in Zaštita materijala
Engineering Society for Corrosion, Belgrade, Serbia., 57(4), 539-544.
https://doi.org/10.5937/ZasMat1604539P

Pavlović J, Krogstad T, Rajić N. Influence of the Fe(III): Modified clinoptilolite on phosphorus leaching from different soil types. in Zaštita materijala. 2016;57(4):539-544.
doi:10.5937/ZasMat1604539P .

Pavlović, Jelena, Krogstad, Tore, Rajić, Nevenka, "Influence of the Fe(III): Modified clinoptilolite on phosphorus leaching from different soil types" in Zaštita materijala, 57, no. 4 (2016):539-544,
https://doi.org/10.5937/ZasMat1604539P . .

TY  - JOUR
AU  - Pavlović, Jelena
AU  - Krogstad, Tore
AU  - Rajić, Nevenka
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2941
AB  - This study presents the impact of addition of natural zeolite - clinoptilolite on potassium retention in the soil. Three different types of soil (from three different locations): Norway, Serbia and Bosnia and Herzegovina were analyzed. Potassium is one of the most important plant nutrient and its availability depends greatly on the soil type.Sandy soils, poor in potassium content have a small adsorption capacity and leaching of potassium occurs in a great extend. Due to ion exchange and adsorption properties of natural zeolites, we investigated how addition of the zeolitic tuff from Zlatokop mine (Vranjska Banja, Srbija) affects potassium leaching from the soils.Experiments were carried out in 12 parallel columns (diameter/height: 2.4/30 cm) which are divided into three systems: control - soil; system A - soil and 1 wt. % zeolite; system B - soil and 0.06 wt.% KNO3 and System C - soil, 1 wt. % zeolite, and 0.06 wt.% KNO3. The columns were irrigated with distilled water (flow rate - 2.2 ml/h; which is equivalent to an average level of rainfall). The concentration of leachate potassium was determined during 7 days.All experiments were done in triplicate. The results indicate that the addition of zeolite has the greatest impact on the K retention in the sandy soil. This leads to conclusion that that the zeolite from Zlatokop deposite can be a good supplement for potassium retention in a sandy soil.
AB  - U radu je prikazan uticaj prirodnog zeolita - klinoptilolita na zadržavanje kalijuma u zemljištu. Ispitane su tri vrste zemljišta, sa tri različite lokacije: Norveška, Srbija i Bosna i Hercegovina. Kalijum je jedan od najznačajnijih biljnih nutrijenata i njegova dostupnost u mnogome zavisi od vrste zemljišta. Zemljišta sa većim sadržajem glina bogatija su kalijumom koji se iz njih sporo izlužuje. U peskovitim zemljištima sadržaj kalijuma je mali, zemljišta karakteriše mali adsorpcioni kapacitet a stepen izluživanja kalijuma je veliki. S obzirom na jono-izmenjivačka i adsorpciona svojstva prirodnih zeolita ispitano je da li dodatak zeolitskog tufa iz rudnika Zlatokop (Vranjska Banja) utiče na izluživanje kalijuma iz ispitivanih zemljišta. Eksperimenti su izvedeni u 12 paralelnih kolona (prečnik/visina: 2,4/30 cm) koje su podeljene u četiri sistema: kontrola - samo zemljište, sistem A - zemljište i 1 mas. % zeolita, sistem B - zemljište i 0,06 mas.% kalijum-nitrat i sistem C - zemljište, 1 mas. % zeolita i 0,06 mas.% kalijum-nitrat. Kroz kolone je propuštana destilovana voda pri protoku na prosečnom nivou padavina (2,2 ml/h). Koncentracija kalijuma u filtratu određivana je tokom 7 dana. Svi eksperimenti su urađeni u triplikatu. Rezultati ukazuju da dodatak zeolita ima najveći uticaj na zadržavanje kalijuma u peskovitom zemljištu. Zaključuje se da je ispitivani tuf dobar suplement za peskovita zemljišta u kojima skoro u potpunosti zadržava kalijum koji je dodat kao nutrijent.
PB  - Institut PKB Agroekonomik, Padinska skela
T2  - Zbornik naučnih radova Instituta PKB Agroekonomik
T1  - Influence of natural zeolite addition on potassium retention from different types of soils
T1  - Uticaj prirodnog zeolita kao suplementa na zadržavanje kalijuma urazličitim vrstama zemljišta
EP  - 172
IS  - 1-2
SP  - 165
VL  - 21
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2941
ER  - 

@article{
author = "Pavlović, Jelena and Krogstad, Tore and Rajić, Nevenka",
year = "2015",
abstract = "This study presents the impact of addition of natural zeolite - clinoptilolite on potassium retention in the soil. Three different types of soil (from three different locations): Norway, Serbia and Bosnia and Herzegovina were analyzed. Potassium is one of the most important plant nutrient and its availability depends greatly on the soil type.Sandy soils, poor in potassium content have a small adsorption capacity and leaching of potassium occurs in a great extend. Due to ion exchange and adsorption properties of natural zeolites, we investigated how addition of the zeolitic tuff from Zlatokop mine (Vranjska Banja, Srbija) affects potassium leaching from the soils.Experiments were carried out in 12 parallel columns (diameter/height: 2.4/30 cm) which are divided into three systems: control - soil; system A - soil and 1 wt. % zeolite; system B - soil and 0.06 wt.% KNO3 and System C - soil, 1 wt. % zeolite, and 0.06 wt.% KNO3. The columns were irrigated with distilled water (flow rate - 2.2 ml/h; which is equivalent to an average level of rainfall). The concentration of leachate potassium was determined during 7 days.All experiments were done in triplicate. The results indicate that the addition of zeolite has the greatest impact on the K retention in the sandy soil. This leads to conclusion that that the zeolite from Zlatokop deposite can be a good supplement for potassium retention in a sandy soil., U radu je prikazan uticaj prirodnog zeolita - klinoptilolita na zadržavanje kalijuma u zemljištu. Ispitane su tri vrste zemljišta, sa tri različite lokacije: Norveška, Srbija i Bosna i Hercegovina. Kalijum je jedan od najznačajnijih biljnih nutrijenata i njegova dostupnost u mnogome zavisi od vrste zemljišta. Zemljišta sa većim sadržajem glina bogatija su kalijumom koji se iz njih sporo izlužuje. U peskovitim zemljištima sadržaj kalijuma je mali, zemljišta karakteriše mali adsorpcioni kapacitet a stepen izluživanja kalijuma je veliki. S obzirom na jono-izmenjivačka i adsorpciona svojstva prirodnih zeolita ispitano je da li dodatak zeolitskog tufa iz rudnika Zlatokop (Vranjska Banja) utiče na izluživanje kalijuma iz ispitivanih zemljišta. Eksperimenti su izvedeni u 12 paralelnih kolona (prečnik/visina: 2,4/30 cm) koje su podeljene u četiri sistema: kontrola - samo zemljište, sistem A - zemljište i 1 mas. % zeolita, sistem B - zemljište i 0,06 mas.% kalijum-nitrat i sistem C - zemljište, 1 mas. % zeolita i 0,06 mas.% kalijum-nitrat. Kroz kolone je propuštana destilovana voda pri protoku na prosečnom nivou padavina (2,2 ml/h). Koncentracija kalijuma u filtratu određivana je tokom 7 dana. Svi eksperimenti su urađeni u triplikatu. Rezultati ukazuju da dodatak zeolita ima najveći uticaj na zadržavanje kalijuma u peskovitom zemljištu. Zaključuje se da je ispitivani tuf dobar suplement za peskovita zemljišta u kojima skoro u potpunosti zadržava kalijum koji je dodat kao nutrijent.",
publisher = "Institut PKB Agroekonomik, Padinska skela",
journal = "Zbornik naučnih radova Instituta PKB Agroekonomik",
title = "Influence of natural zeolite addition on potassium retention from different types of soils, Uticaj prirodnog zeolita kao suplementa na zadržavanje kalijuma urazličitim vrstama zemljišta",
pages = "172-165",
number = "1-2",
volume = "21",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2941"
}

Pavlović, J., Krogstad, T.,& Rajić, N.. (2015). Influence of natural zeolite addition on potassium retention from different types of soils. in Zbornik naučnih radova Instituta PKB Agroekonomik
Institut PKB Agroekonomik, Padinska skela., 21(1-2), 165-172.
https://hdl.handle.net/21.15107/rcub_technorep_2941

Pavlović J, Krogstad T, Rajić N. Influence of natural zeolite addition on potassium retention from different types of soils. in Zbornik naučnih radova Instituta PKB Agroekonomik. 2015;21(1-2):165-172.
https://hdl.handle.net/21.15107/rcub_technorep_2941 .

Pavlović, Jelena, Krogstad, Tore, Rajić, Nevenka, "Influence of natural zeolite addition on potassium retention from different types of soils" in Zbornik naučnih radova Instituta PKB Agroekonomik, 21, no. 1-2 (2015):165-172,
https://hdl.handle.net/21.15107/rcub_technorep_2941 .

TY  - JOUR
AU  - Jevtić, Sanja
AU  - Arcon, Iztok
AU  - Recnik, Aleksander
AU  - Babić, Biljana M.
AU  - Mazaj, Matjaz
AU  - Pavlović, Jelena
AU  - Matijasević, Danka
AU  - Nikšić, Miomir
AU  - Rajić, Nevenka
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2662
AB  - Se(IV) and Se(VI) anions are the dominant species of Se existing in aqueous systems. In this study, the iron(III)-modified natural zeolitic tuff (Fe-CLI) from the Serbian deposit Zlatokop has been investigated as an adsorbent for the Se oxyanions. Fe-CLI shows adsorption activity for both Se(IV) and Se(VI) which decreases with increasing pH. The adsorption capacity of Fe-CLI is found to be higher for Se(IV) than for Se(VI). Kinetics data follow the pseudo-second-order model and the obtained parameters k indicate that the rates of adsorption and desorption are higher for Se(VI). Extended X-ray absorption fine structure (EXAFS) and X-ray absorption near edge structure (XANES) analyses reveal that Se is bound at the zeolite surface forming not only the Se-O-Fe but also Se-O-Si bonds. The adsorption mechanism depends of the type of oxo ions. Samples of zeolitic tuff which contain Se were tested as soil supplements for the cultivation of Pleurotus ostreatus mushrooms. The fungus adsorbed the inorganic Se from zeolitic tuff transforming it to a more valuable organically bound form.
PB  - Elsevier, Amsterdam
T2  - Microporous and Mesoporous Materials
T1  - The iron(III)-modified natural zeolitic tuff as an adsorbent and carrier for selenium oxyanions
EP  - 100
SP  - 92
VL  - 197
DO  - 10.1016/j.micromeso.2014.06.008
ER  - 

@article{
author = "Jevtić, Sanja and Arcon, Iztok and Recnik, Aleksander and Babić, Biljana M. and Mazaj, Matjaz and Pavlović, Jelena and Matijasević, Danka and Nikšić, Miomir and Rajić, Nevenka",
year = "2014",
abstract = "Se(IV) and Se(VI) anions are the dominant species of Se existing in aqueous systems. In this study, the iron(III)-modified natural zeolitic tuff (Fe-CLI) from the Serbian deposit Zlatokop has been investigated as an adsorbent for the Se oxyanions. Fe-CLI shows adsorption activity for both Se(IV) and Se(VI) which decreases with increasing pH. The adsorption capacity of Fe-CLI is found to be higher for Se(IV) than for Se(VI). Kinetics data follow the pseudo-second-order model and the obtained parameters k indicate that the rates of adsorption and desorption are higher for Se(VI). Extended X-ray absorption fine structure (EXAFS) and X-ray absorption near edge structure (XANES) analyses reveal that Se is bound at the zeolite surface forming not only the Se-O-Fe but also Se-O-Si bonds. The adsorption mechanism depends of the type of oxo ions. Samples of zeolitic tuff which contain Se were tested as soil supplements for the cultivation of Pleurotus ostreatus mushrooms. The fungus adsorbed the inorganic Se from zeolitic tuff transforming it to a more valuable organically bound form.",
publisher = "Elsevier, Amsterdam",
journal = "Microporous and Mesoporous Materials",
title = "The iron(III)-modified natural zeolitic tuff as an adsorbent and carrier for selenium oxyanions",
pages = "100-92",
volume = "197",
doi = "10.1016/j.micromeso.2014.06.008"
}

Jevtić, S., Arcon, I., Recnik, A., Babić, B. M., Mazaj, M., Pavlović, J., Matijasević, D., Nikšić, M.,& Rajić, N.. (2014). The iron(III)-modified natural zeolitic tuff as an adsorbent and carrier for selenium oxyanions. in Microporous and Mesoporous Materials
Elsevier, Amsterdam., 197, 92-100.
https://doi.org/10.1016/j.micromeso.2014.06.008

Jevtić S, Arcon I, Recnik A, Babić BM, Mazaj M, Pavlović J, Matijasević D, Nikšić M, Rajić N. The iron(III)-modified natural zeolitic tuff as an adsorbent and carrier for selenium oxyanions. in Microporous and Mesoporous Materials. 2014;197:92-100.
doi:10.1016/j.micromeso.2014.06.008 .

Jevtić, Sanja, Arcon, Iztok, Recnik, Aleksander, Babić, Biljana M., Mazaj, Matjaz, Pavlović, Jelena, Matijasević, Danka, Nikšić, Miomir, Rajić, Nevenka, "The iron(III)-modified natural zeolitic tuff as an adsorbent and carrier for selenium oxyanions" in Microporous and Mesoporous Materials, 197 (2014):92-100,
https://doi.org/10.1016/j.micromeso.2014.06.008 . .

TY  - JOUR
AU  - Pavlović, Jelena
AU  - Milenković, Jelena
AU  - Rajić, Nevenka
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2749
AB  - Natural zeolitic tuff from the Zlatokop mine (Vranjska Banja deposit, Serbia) was investigated as the starting material to obtain a low cost adsorbent for the removal of nitrate from aqueous media. The tuff rich in zeolite, clinoptilolite, was modified with several oxides, iron(III), manganese(IV) and magnesium, by simple procedures in order to make the clinoptilolite surface accessible for binding nitrate ions. The obtained oxide-modified zeolite samples were characterized by scanning electron microscopy and energy dispersive X-ray analysis (SEM/EDS), powder X-ray diffraction (PXRD), infrared spectroscopy (FTIR) and by measurement of their specific surface area. The effects of the adsorbent dosage (0.5, 1.0, 1.5 and 2.0 g), temperature (25, 35 and 45 degrees C) and initial nitrate concentration (c(0), 100, 200 and 300 mg dm(-3)) on the binding efficiency were also studied. For all adsorbents, the efficiency increased with temperature. The type of the oxide affected the adsorption mechanism. The Fe(III) oxide-modified zeolite exhibited the best binding ability. For this adsorbent, the adsorption kinetics were studied and it was found that they were best represented by the pseudo-second-order model.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Modification of natural clinoptilolite for nitrate removal from aqueous media
EP  - 1322
IS  - 10
SP  - 1309
VL  - 79
DO  - 10.2298/JSC140116038P
ER  - 

@article{
author = "Pavlović, Jelena and Milenković, Jelena and Rajić, Nevenka",
year = "2014",
abstract = "Natural zeolitic tuff from the Zlatokop mine (Vranjska Banja deposit, Serbia) was investigated as the starting material to obtain a low cost adsorbent for the removal of nitrate from aqueous media. The tuff rich in zeolite, clinoptilolite, was modified with several oxides, iron(III), manganese(IV) and magnesium, by simple procedures in order to make the clinoptilolite surface accessible for binding nitrate ions. The obtained oxide-modified zeolite samples were characterized by scanning electron microscopy and energy dispersive X-ray analysis (SEM/EDS), powder X-ray diffraction (PXRD), infrared spectroscopy (FTIR) and by measurement of their specific surface area. The effects of the adsorbent dosage (0.5, 1.0, 1.5 and 2.0 g), temperature (25, 35 and 45 degrees C) and initial nitrate concentration (c(0), 100, 200 and 300 mg dm(-3)) on the binding efficiency were also studied. For all adsorbents, the efficiency increased with temperature. The type of the oxide affected the adsorption mechanism. The Fe(III) oxide-modified zeolite exhibited the best binding ability. For this adsorbent, the adsorption kinetics were studied and it was found that they were best represented by the pseudo-second-order model.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Modification of natural clinoptilolite for nitrate removal from aqueous media",
pages = "1322-1309",
number = "10",
volume = "79",
doi = "10.2298/JSC140116038P"
}

Pavlović, J., Milenković, J.,& Rajić, N.. (2014). Modification of natural clinoptilolite for nitrate removal from aqueous media. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 79(10), 1309-1322.
https://doi.org/10.2298/JSC140116038P

Pavlović J, Milenković J, Rajić N. Modification of natural clinoptilolite for nitrate removal from aqueous media. in Journal of the Serbian Chemical Society. 2014;79(10):1309-1322.
doi:10.2298/JSC140116038P .

Pavlović, Jelena, Milenković, Jelena, Rajić, Nevenka, "Modification of natural clinoptilolite for nitrate removal from aqueous media" in Journal of the Serbian Chemical Society, 79, no. 10 (2014):1309-1322,
https://doi.org/10.2298/JSC140116038P . .

TY  - JOUR
AU  - Pavlović, Jelena
AU  - Stopić, Srećko
AU  - Friedrich, Bernd
AU  - Kamberović, Željko
PY  - 2007
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1135
AB  - Goal, Scope and Background. This paper is a part of the research work on 'Integrated treatment of industrial wastes towards prevention of regional water resources contamination INTREAT' the project. It addresses the environmental pollution problems associated with solid and liquid waste/effluents produced by sulfide ore mining and metallurgical activities in the Copper Mining and Smelting Complex Bor (RTB-BOR), Serbia. However, since the minimum solubility for the different metals usually found in the polluted water occurs at different pH values and the hydroxide precipitates are amphoteric in nature, selective removal of mixed metals could be achieved as the multiple stage precipitation. For this reason, acid mine water had to be treated in multiple stages in a continuous precipitation system-cascade line reactor. Materials and Methods. All experiments were performed using synthetic metal-bearing effluent with chemical a composition similar to the effluent from open pit, Copper Mining and Smelting Complex Bor (RTB-BOR). That effluent is characterized by low pH (1.78) due to the content of sulfuric acid and heavy metals, such as Cu, Fe, Ni, Mn, Zn with concentrations of 76.680, 26.130, 0.113, 11.490, 1.020 mg/dm(3), respectively. The cascade line reactor is equipped with the following components: for feeding of effluents, for injection of the precipitation agent, for pH measurements and control, and for removal of the process gases. The precipitation agent was 1M NaOH. In each of the three reactors, a changing of pH and temperature was observed. In order to verify efficiency of heavy metals removal, chemical analyses of samples taken at different pH was done using AES-ICP. Results. Consumption of NaOH in reactors was 370 cm(3), 40 cm(3) and 80 cm(3), respectively. Total time of the experiment was 4 h including feeding of the first reactor. The time necessary to achieve the defined pH value was 25 min for the first reactor and 13 min for-both second and third reactors. Taking into account the complete process in the cascade line reactor, the difference between maximum and minimum temperature was as low as 6 degrees C. The quantity of solid residue in reactors respectively was 0.62 g, 2.05 g and 3.91 g. In the case of copper, minimum achieved concentration was 0.62 mg/dm(3) at pH = 10.4. At pH = 4.50 content of iron has rapidly decreased to  lt  0.1 mg/dm(3) and maintained constant at all higher pH values. That means that precipitation has already ended at pH=4.5 and maximum efficiency of iron removal was 99.53%. The concentration of manganese was minimum at pH value of 11.0. Minimum obtained concentration of Zn was 2.18 mg/dm(3) at a pH value of 11. If pH value is higher than 11, Zn can be re-dissolved. The maximum efficiency of Ni removal reached 76.30% at a pH value of 10.4. Discussion. Obtained results show that efficiency of copper, iron and manganese removal is very satisfactory (higher than 90%). The obtained efficiency of Zn and Ni removal is lower (72.30% and 76.31%, respectively). The treated effluent met discharge water standard according to The Council Directive 76/464/EEC on pollution caused by certain dangerous substances into the aquatic environment of the Community. Maximum changing of temperature during the whole process was 6 degrees C. Conclusion. This technology, which was based on inducing chemical precipitation of heavy metals is viable for selective removal of heavy metals from metal-bearing effluents in three reactor systems in a cascade line. Recommendations and Perspectives. The worldwide increasing concern for the environment and guidelines regarding effluent discharge make their treatment necessary for safe discharge in water receivers. In the case where the effluents contain valuable metals, there is also an additional economic interest to recover these metals and to recycle them as secondary raw materials in different production routes.
PB  - Ecomed Publishers, Landsberg
T2  - Environmental Science and Pollution Research
T1  - Selective removal of heavy metals from metal-bearing wastewater in a cascade line reactor
EP  - 522
IS  - 7
SP  - 518
VL  - 14
DO  - 10.1065/espr2006.09.345
ER  - 

@article{
author = "Pavlović, Jelena and Stopić, Srećko and Friedrich, Bernd and Kamberović, Željko",
year = "2007",
abstract = "Goal, Scope and Background. This paper is a part of the research work on 'Integrated treatment of industrial wastes towards prevention of regional water resources contamination INTREAT' the project. It addresses the environmental pollution problems associated with solid and liquid waste/effluents produced by sulfide ore mining and metallurgical activities in the Copper Mining and Smelting Complex Bor (RTB-BOR), Serbia. However, since the minimum solubility for the different metals usually found in the polluted water occurs at different pH values and the hydroxide precipitates are amphoteric in nature, selective removal of mixed metals could be achieved as the multiple stage precipitation. For this reason, acid mine water had to be treated in multiple stages in a continuous precipitation system-cascade line reactor. Materials and Methods. All experiments were performed using synthetic metal-bearing effluent with chemical a composition similar to the effluent from open pit, Copper Mining and Smelting Complex Bor (RTB-BOR). That effluent is characterized by low pH (1.78) due to the content of sulfuric acid and heavy metals, such as Cu, Fe, Ni, Mn, Zn with concentrations of 76.680, 26.130, 0.113, 11.490, 1.020 mg/dm(3), respectively. The cascade line reactor is equipped with the following components: for feeding of effluents, for injection of the precipitation agent, for pH measurements and control, and for removal of the process gases. The precipitation agent was 1M NaOH. In each of the three reactors, a changing of pH and temperature was observed. In order to verify efficiency of heavy metals removal, chemical analyses of samples taken at different pH was done using AES-ICP. Results. Consumption of NaOH in reactors was 370 cm(3), 40 cm(3) and 80 cm(3), respectively. Total time of the experiment was 4 h including feeding of the first reactor. The time necessary to achieve the defined pH value was 25 min for the first reactor and 13 min for-both second and third reactors. Taking into account the complete process in the cascade line reactor, the difference between maximum and minimum temperature was as low as 6 degrees C. The quantity of solid residue in reactors respectively was 0.62 g, 2.05 g and 3.91 g. In the case of copper, minimum achieved concentration was 0.62 mg/dm(3) at pH = 10.4. At pH = 4.50 content of iron has rapidly decreased to  lt  0.1 mg/dm(3) and maintained constant at all higher pH values. That means that precipitation has already ended at pH=4.5 and maximum efficiency of iron removal was 99.53%. The concentration of manganese was minimum at pH value of 11.0. Minimum obtained concentration of Zn was 2.18 mg/dm(3) at a pH value of 11. If pH value is higher than 11, Zn can be re-dissolved. The maximum efficiency of Ni removal reached 76.30% at a pH value of 10.4. Discussion. Obtained results show that efficiency of copper, iron and manganese removal is very satisfactory (higher than 90%). The obtained efficiency of Zn and Ni removal is lower (72.30% and 76.31%, respectively). The treated effluent met discharge water standard according to The Council Directive 76/464/EEC on pollution caused by certain dangerous substances into the aquatic environment of the Community. Maximum changing of temperature during the whole process was 6 degrees C. Conclusion. This technology, which was based on inducing chemical precipitation of heavy metals is viable for selective removal of heavy metals from metal-bearing effluents in three reactor systems in a cascade line. Recommendations and Perspectives. The worldwide increasing concern for the environment and guidelines regarding effluent discharge make their treatment necessary for safe discharge in water receivers. In the case where the effluents contain valuable metals, there is also an additional economic interest to recover these metals and to recycle them as secondary raw materials in different production routes.",
publisher = "Ecomed Publishers, Landsberg",
journal = "Environmental Science and Pollution Research",
title = "Selective removal of heavy metals from metal-bearing wastewater in a cascade line reactor",
pages = "522-518",
number = "7",
volume = "14",
doi = "10.1065/espr2006.09.345"
}

Pavlović, J., Stopić, S., Friedrich, B.,& Kamberović, Ž.. (2007). Selective removal of heavy metals from metal-bearing wastewater in a cascade line reactor. in Environmental Science and Pollution Research
Ecomed Publishers, Landsberg., 14(7), 518-522.
https://doi.org/10.1065/espr2006.09.345

Pavlović J, Stopić S, Friedrich B, Kamberović Ž. Selective removal of heavy metals from metal-bearing wastewater in a cascade line reactor. in Environmental Science and Pollution Research. 2007;14(7):518-522.
doi:10.1065/espr2006.09.345 .

Pavlović, Jelena, Stopić, Srećko, Friedrich, Bernd, Kamberović, Željko, "Selective removal of heavy metals from metal-bearing wastewater in a cascade line reactor" in Environmental Science and Pollution Research, 14, no. 7 (2007):518-522,
https://doi.org/10.1065/espr2006.09.345 . .

TY  - JOUR
AU  - Stopić, Srećko
AU  - Pavlović, Jelena
AU  - Friedrich, Bernd
PY  - 2007
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1035
AB  - This paper presents research work done on complex copper bearing effluents from the Serbian RTB-Bor plant. The INTREAT project, funded by the European community, addresses environmental pollution problems associated with solid and liquid wastes produced by complex sulphide ore mining and metallurgical activities. In order to offer a cost-effective and environmental friendly technology, a continuous precipitation system for selective neutralization and chemical precipitation was designed as cascade line reactor. However, since the minimum solubility for the dissolved metals occurs at different pH-values and the hydroxide precipitates are amphoteric in nature, the highest removal efficiency cannot be achieved at a single precipitation pH level, respectively in one reactor. Thermochemical analysis predicted three effective pH ranges: 4 to 4.5 (mainly iron hydroxides), 7 to 7.5 (mainly copper hydroxide/sulfate-mix), and  gt  10 (mainly nickel hydroxide). For this reason, the waste water was treated in multiple stages. During the testwork the influence of temperature and such pH-values on the metal removal degree was investigated in a continuous operation mode. The consumption of NaOH was monitored in dependence of its feed concentration. Obtained results show that the metal removal efficiency is very satisfactory and the recovered purified solution meets international discharge water standards.
T2  - World of Metallurgy - Erzmetall
T1  - Treatment of highly contaminated waste waters in a continuous cascade line reactor
EP  - 162
IS  - 3
SP  - 155
VL  - 60
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1035
ER  - 

@article{
author = "Stopić, Srećko and Pavlović, Jelena and Friedrich, Bernd",
year = "2007",
abstract = "This paper presents research work done on complex copper bearing effluents from the Serbian RTB-Bor plant. The INTREAT project, funded by the European community, addresses environmental pollution problems associated with solid and liquid wastes produced by complex sulphide ore mining and metallurgical activities. In order to offer a cost-effective and environmental friendly technology, a continuous precipitation system for selective neutralization and chemical precipitation was designed as cascade line reactor. However, since the minimum solubility for the dissolved metals occurs at different pH-values and the hydroxide precipitates are amphoteric in nature, the highest removal efficiency cannot be achieved at a single precipitation pH level, respectively in one reactor. Thermochemical analysis predicted three effective pH ranges: 4 to 4.5 (mainly iron hydroxides), 7 to 7.5 (mainly copper hydroxide/sulfate-mix), and  gt  10 (mainly nickel hydroxide). For this reason, the waste water was treated in multiple stages. During the testwork the influence of temperature and such pH-values on the metal removal degree was investigated in a continuous operation mode. The consumption of NaOH was monitored in dependence of its feed concentration. Obtained results show that the metal removal efficiency is very satisfactory and the recovered purified solution meets international discharge water standards.",
journal = "World of Metallurgy - Erzmetall",
title = "Treatment of highly contaminated waste waters in a continuous cascade line reactor",
pages = "162-155",
number = "3",
volume = "60",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1035"
}

Stopić, S., Pavlović, J.,& Friedrich, B.. (2007). Treatment of highly contaminated waste waters in a continuous cascade line reactor. in World of Metallurgy - Erzmetall, 60(3), 155-162.
https://hdl.handle.net/21.15107/rcub_technorep_1035

Stopić S, Pavlović J, Friedrich B. Treatment of highly contaminated waste waters in a continuous cascade line reactor. in World of Metallurgy - Erzmetall. 2007;60(3):155-162.
https://hdl.handle.net/21.15107/rcub_technorep_1035 .

Stopić, Srećko, Pavlović, Jelena, Friedrich, Bernd, "Treatment of highly contaminated waste waters in a continuous cascade line reactor" in World of Metallurgy - Erzmetall, 60, no. 3 (2007):155-162,
https://hdl.handle.net/21.15107/rcub_technorep_1035 .

TY  - JOUR
AU  - Milosavljević, Aleksandra
AU  - Živković, Dragana
AU  - Pavlović, Jelena
PY  - 2006
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/924
AB  - Lead - free soldering became very popular in the whole world, because of high ecological demands in industry. Most of alternative alloys have high content of tin, and some of them are already used in electronic industry. One of them is Ag-Sn. In order to decrease melting point of alloy, addition of indium is used and it is expected that Ag-In-Sn alloy will be suitable for replace Sn-Pb standard solder alloy. From that reasons, the results of investigation thermodynamic properties and phase equilibria of Ag-In-Sn alloys are presented in this paper. The investigated samples are with constant molar ratio of In:Sn = 1:2. DTA and SEM analysis were used as methods for characterization of Ag-In-Sn ternary alloys, and the GSM model was used as a method for thermodynamic prediction of Ag-In-Sn alloys at 1423 K.
AB  - Jedan od aktuelnih svetskih trendova, obzirom na primarne ekološke zahteve svakako je i pronalaženje novih, bezolovnih lemnih legura koje mogu zameniti već postojeće lemove na bazi olova. Legure koje se već koriste u elektronskoj industriji kao zamena za standardne Pb-Sn lemove, imaju veliki sadržaj kalaja (Ag-Sn), pa se može očekivati da će se dodatkom indijuma kao trećeg elementa sniziti temperatura topljenja legure. Iz tih razloga, ispitivan je sistem Ag-In-Sn, pri čemu su odabrane legure sa konstantnim molskim odnosom In:Sn = 1:2. U cilju što potpunijeg poznavanja termodinamičkih veličina, kao i faznih ravnoteža ovog sistema, rad obuhvata sledeće: • Kvalitativnu diferencijalnu termijsku analizu (DTA), u cilju određivanja karakterističnih temperatura faznih transformacija za ispitivane legure • Skenirajuću elektronsku mikroskopiju (SEM) radi utvrđivanja mikrostrukture uzoraka • Određivanje koeficijenata aktivnosti, aktivnosti, parcijalnih i integralnih molarnih termodinamičkih veličina legura sistema Ag-In-Sn, na temperaturi od 1423 K metodom termodinamičkog predviđanja po opštem modelu rastvora.
PB  - Savez inženjera i tehničara Srbije, Beograd
T2  - Tehnika - Novi materijali
T1  - Investigation of thermodynamic properties and phase equilibria in Ag-In-Sn system
T1  - Ispitivanje termodinamičkih veličina i faznih ravnoteža u sistemu Ag-In-Sn
EP  - 20
IS  - 1
SP  - 15
VL  - 15
UR  - https://hdl.handle.net/21.15107/rcub_technorep_924
ER  - 

@article{
author = "Milosavljević, Aleksandra and Živković, Dragana and Pavlović, Jelena",
year = "2006",
abstract = "Lead - free soldering became very popular in the whole world, because of high ecological demands in industry. Most of alternative alloys have high content of tin, and some of them are already used in electronic industry. One of them is Ag-Sn. In order to decrease melting point of alloy, addition of indium is used and it is expected that Ag-In-Sn alloy will be suitable for replace Sn-Pb standard solder alloy. From that reasons, the results of investigation thermodynamic properties and phase equilibria of Ag-In-Sn alloys are presented in this paper. The investigated samples are with constant molar ratio of In:Sn = 1:2. DTA and SEM analysis were used as methods for characterization of Ag-In-Sn ternary alloys, and the GSM model was used as a method for thermodynamic prediction of Ag-In-Sn alloys at 1423 K., Jedan od aktuelnih svetskih trendova, obzirom na primarne ekološke zahteve svakako je i pronalaženje novih, bezolovnih lemnih legura koje mogu zameniti već postojeće lemove na bazi olova. Legure koje se već koriste u elektronskoj industriji kao zamena za standardne Pb-Sn lemove, imaju veliki sadržaj kalaja (Ag-Sn), pa se može očekivati da će se dodatkom indijuma kao trećeg elementa sniziti temperatura topljenja legure. Iz tih razloga, ispitivan je sistem Ag-In-Sn, pri čemu su odabrane legure sa konstantnim molskim odnosom In:Sn = 1:2. U cilju što potpunijeg poznavanja termodinamičkih veličina, kao i faznih ravnoteža ovog sistema, rad obuhvata sledeće: • Kvalitativnu diferencijalnu termijsku analizu (DTA), u cilju određivanja karakterističnih temperatura faznih transformacija za ispitivane legure • Skenirajuću elektronsku mikroskopiju (SEM) radi utvrđivanja mikrostrukture uzoraka • Određivanje koeficijenata aktivnosti, aktivnosti, parcijalnih i integralnih molarnih termodinamičkih veličina legura sistema Ag-In-Sn, na temperaturi od 1423 K metodom termodinamičkog predviđanja po opštem modelu rastvora.",
publisher = "Savez inženjera i tehničara Srbije, Beograd",
journal = "Tehnika - Novi materijali",
title = "Investigation of thermodynamic properties and phase equilibria in Ag-In-Sn system, Ispitivanje termodinamičkih veličina i faznih ravnoteža u sistemu Ag-In-Sn",
pages = "20-15",
number = "1",
volume = "15",
url = "https://hdl.handle.net/21.15107/rcub_technorep_924"
}

Milosavljević, A., Živković, D.,& Pavlović, J.. (2006). Investigation of thermodynamic properties and phase equilibria in Ag-In-Sn system. in Tehnika - Novi materijali
Savez inženjera i tehničara Srbije, Beograd., 15(1), 15-20.
https://hdl.handle.net/21.15107/rcub_technorep_924

Milosavljević A, Živković D, Pavlović J. Investigation of thermodynamic properties and phase equilibria in Ag-In-Sn system. in Tehnika - Novi materijali. 2006;15(1):15-20.
https://hdl.handle.net/21.15107/rcub_technorep_924 .

Milosavljević, Aleksandra, Živković, Dragana, Pavlović, Jelena, "Investigation of thermodynamic properties and phase equilibria in Ag-In-Sn system" in Tehnika - Novi materijali, 15, no. 1 (2006):15-20,
https://hdl.handle.net/21.15107/rcub_technorep_924 .

TY  - JOUR
AU  - Gavrilovski, Milorad
AU  - Tasić, Miloš
AU  - Kamberović, Željko
AU  - Pavlović, Jelena
AU  - Sekulić, Živko
PY  - 2004
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/665
AB  - In this paper detailed characterization of ferriferous dust and mud which originated from aglomerization, blast- furnace and converter process in Iron-works Smederevo were shown. Optimization of method peletization was conducted in variably conditions (different moinsture content, changing of time of peletization and type of binder). These palets were submitted to examination of resistance on impact and pressure, and their behavior was confirmed returning in sintering process in semiindustrial conditions. Ideally-technological solution for plant preparation of dust and mud in Iron-works Smederevo was recommended. That solution should contribute to improvement of techno-economic parameters of aglomeration and blast- furnace process, as well as solution of ecological problem.
AB  - U radu su prikazani rezultati detaljne karakterizacije prašina i muljeva aglomeracionog, visokopećnog i konvertorskog procesa Železare Smederevo. Optimizirana je njihova priprema postupkom peletizacije u promenljivim uslovima (različiti sadržaji vlage, promena vremena peletiziranja i vrste veziva) u cilju vraćanja u primarne procese svih korisnih komponenti koje sadrže. Dobijene pelete su podvrgnute ispitivanjima otpornosti na udar i pritisak. Utvrđena je njihova pogodnost za sinterovanje u poluindustrijskim uslovima. Predloženo je idejno tehnološko rešenje izgradnje postrojenja za pripremu prašina i muljeva u Železari Smederevo, koje bi trebalo da doprinese poboljšanju tehno-ekonomskih parametara aglomeracionog i visokopećnog procesa, uz istovremeno rešavanje ekološkog problema.
PB  - Savez inženjera metalurgije Srbije, Beograd
T2  - Metalurgija
T1  - Optimisation of ferriferous dust and mud preparation acts from iron and steel production on purpose of returning to primary processes
T1  - Optimizacija postupaka pripreme železonosnih prašina i muljeva iz proizvodnje gvožđa i čelika u cilju vraćanja u primarne procese
EP  - 384
IS  - 4
SP  - 371
VL  - 10
UR  - https://hdl.handle.net/21.15107/rcub_technorep_665
ER  - 

@article{
author = "Gavrilovski, Milorad and Tasić, Miloš and Kamberović, Željko and Pavlović, Jelena and Sekulić, Živko",
year = "2004",
abstract = "In this paper detailed characterization of ferriferous dust and mud which originated from aglomerization, blast- furnace and converter process in Iron-works Smederevo were shown. Optimization of method peletization was conducted in variably conditions (different moinsture content, changing of time of peletization and type of binder). These palets were submitted to examination of resistance on impact and pressure, and their behavior was confirmed returning in sintering process in semiindustrial conditions. Ideally-technological solution for plant preparation of dust and mud in Iron-works Smederevo was recommended. That solution should contribute to improvement of techno-economic parameters of aglomeration and blast- furnace process, as well as solution of ecological problem., U radu su prikazani rezultati detaljne karakterizacije prašina i muljeva aglomeracionog, visokopećnog i konvertorskog procesa Železare Smederevo. Optimizirana je njihova priprema postupkom peletizacije u promenljivim uslovima (različiti sadržaji vlage, promena vremena peletiziranja i vrste veziva) u cilju vraćanja u primarne procese svih korisnih komponenti koje sadrže. Dobijene pelete su podvrgnute ispitivanjima otpornosti na udar i pritisak. Utvrđena je njihova pogodnost za sinterovanje u poluindustrijskim uslovima. Predloženo je idejno tehnološko rešenje izgradnje postrojenja za pripremu prašina i muljeva u Železari Smederevo, koje bi trebalo da doprinese poboljšanju tehno-ekonomskih parametara aglomeracionog i visokopećnog procesa, uz istovremeno rešavanje ekološkog problema.",
publisher = "Savez inženjera metalurgije Srbije, Beograd",
journal = "Metalurgija",
title = "Optimisation of ferriferous dust and mud preparation acts from iron and steel production on purpose of returning to primary processes, Optimizacija postupaka pripreme železonosnih prašina i muljeva iz proizvodnje gvožđa i čelika u cilju vraćanja u primarne procese",
pages = "384-371",
number = "4",
volume = "10",
url = "https://hdl.handle.net/21.15107/rcub_technorep_665"
}

Gavrilovski, M., Tasić, M., Kamberović, Ž., Pavlović, J.,& Sekulić, Ž.. (2004). Optimisation of ferriferous dust and mud preparation acts from iron and steel production on purpose of returning to primary processes. in Metalurgija
Savez inženjera metalurgije Srbije, Beograd., 10(4), 371-384.
https://hdl.handle.net/21.15107/rcub_technorep_665

Gavrilovski M, Tasić M, Kamberović Ž, Pavlović J, Sekulić Ž. Optimisation of ferriferous dust and mud preparation acts from iron and steel production on purpose of returning to primary processes. in Metalurgija. 2004;10(4):371-384.
https://hdl.handle.net/21.15107/rcub_technorep_665 .

Gavrilovski, Milorad, Tasić, Miloš, Kamberović, Željko, Pavlović, Jelena, Sekulić, Živko, "Optimisation of ferriferous dust and mud preparation acts from iron and steel production on purpose of returning to primary processes" in Metalurgija, 10, no. 4 (2004):371-384,
https://hdl.handle.net/21.15107/rcub_technorep_665 .

TY  - JOUR
AU  - Ilić, Ilija B.
AU  - Korać, Marija
AU  - Kamberović, Željko
AU  - Pavlović, Jelena
PY  - 2004
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/669
AB  - In this paper are presented results of experimental investigation of processing of non oil-contaminated metal scrap based on magnesium and its alloys. These are the firs investigations of magnesium scrap recycling in Serbia and Montenegro. Experimental investigations were conducted in laboratory scale and achieved results were verified in industrial scale (Magnesium factory "Bela Stena" in Baljevac on Ibar). Experiments included following the influence of preparation of metal scrap on metal extraction efficiency rate.
PB  - Savez inženjera metalurgije Srbije, Beograd
T2  - Metalurgija
T1  - Possibilities of recycling of magnesium and magnesium alloys
EP  - 266
IS  - 3
SP  - 261
VL  - 10
UR  - https://hdl.handle.net/21.15107/rcub_technorep_669
ER  - 

@article{
author = "Ilić, Ilija B. and Korać, Marija and Kamberović, Željko and Pavlović, Jelena",
year = "2004",
abstract = "In this paper are presented results of experimental investigation of processing of non oil-contaminated metal scrap based on magnesium and its alloys. These are the firs investigations of magnesium scrap recycling in Serbia and Montenegro. Experimental investigations were conducted in laboratory scale and achieved results were verified in industrial scale (Magnesium factory "Bela Stena" in Baljevac on Ibar). Experiments included following the influence of preparation of metal scrap on metal extraction efficiency rate.",
publisher = "Savez inženjera metalurgije Srbije, Beograd",
journal = "Metalurgija",
title = "Possibilities of recycling of magnesium and magnesium alloys",
pages = "266-261",
number = "3",
volume = "10",
url = "https://hdl.handle.net/21.15107/rcub_technorep_669"
}

Ilić, I. B., Korać, M., Kamberović, Ž.,& Pavlović, J.. (2004). Possibilities of recycling of magnesium and magnesium alloys. in Metalurgija
Savez inženjera metalurgije Srbije, Beograd., 10(3), 261-266.
https://hdl.handle.net/21.15107/rcub_technorep_669

Ilić IB, Korać M, Kamberović Ž, Pavlović J. Possibilities of recycling of magnesium and magnesium alloys. in Metalurgija. 2004;10(3):261-266.
https://hdl.handle.net/21.15107/rcub_technorep_669 .

Ilić, Ilija B., Korać, Marija, Kamberović, Željko, Pavlović, Jelena, "Possibilities of recycling of magnesium and magnesium alloys" in Metalurgija, 10, no. 3 (2004):261-266,
https://hdl.handle.net/21.15107/rcub_technorep_669 .

TY  - JOUR
AU  - Gavrilovski, Milorad
AU  - Tasić, Miloš
AU  - Kamberović, Željko
AU  - Pavlović, Jelena
PY  - 2004
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/671
AB  - A new technology for the manufacture of a borer by alumino-thermal method, system design for performing alumino-thermal reaction, as well as required quality of termite steel, is disclosed in this paper. In addition to this, the comparative results concerning manufactured borers quality obtained by this technology in exploitation conditions, at the BF Plant, and results attained by applying traditional technology, have been presented in this paper too. A brief economic evaluation of the new solution has been given. Thereby, savings have not been taken into consideration, achieved by improving the iron notch quality and increasing the BF operation efficiency.
AB  - U okviru ovog rada prikazanje aluminotermijski postupak izrade i zavarivanja vrha tela burgije koje se koriste za otvaranje visoke peći tokom ispuštanja gvožđa, kao i zavarivanje zaostalih komada čeličnog šipkastog materijala tela burgija prečnika 40mm, u cilju reciklaže istim postupkom. U tom cilju projektovana su dva tipa aluminotermijskih mešavina i to: Pyrkonit-VB, čijom se reakcijom dobija termitni čelik, zadatih karakteristika, koji se izliva u kalupni prostor vrha burgije koji se istovremeno zavaruje za telo, Pyrkonit-TB, kojom se zavaruju zaostali, nakon izrade otvora, nerastopljeni komadi tela burgija, u cilju reciklaže. Na osnovu proračuna ulivnog sistema definisana je tehnologija izlivanja termitnog čelika iz odgovarajućih reakcionih lonaca koji su ujedno i kalupi. Date su karakteristike zavarenih spojeva i uporedni rezultati primene izrađenih burgija ovom tehnologijom, u industrijskim uslovima na Visokoj peći Sartid Smederevo sa rezultatima primene tradicionalne tehnologije-kovane burgije (oko 600 komada mesečno). Prikazana je kraća ekonomska ocena novog rešenja, pri čemu nisu uzete u obzir indirektne uštede koje se ostvaruju povećanjem efikasnosti rada visoke peći.
PB  - Institut za istrazivanja i projektovanja u privredi
T2  - Journal of Applied Engineering Science
T1  - A new technological solution for the manufacture of a borer for iron notch opening at the blast furnace plant
T1  - Primena aluminotermijskog postupka izrade i zavarivanja vrha burgija koje se koriste za otvoranje visoke peći tokom ispusta gvožđa
EP  - 48
IS  - 6
SP  - 43
VL  - 2
UR  - https://hdl.handle.net/21.15107/rcub_technorep_671
ER  - 

@article{
author = "Gavrilovski, Milorad and Tasić, Miloš and Kamberović, Željko and Pavlović, Jelena",
year = "2004",
abstract = "A new technology for the manufacture of a borer by alumino-thermal method, system design for performing alumino-thermal reaction, as well as required quality of termite steel, is disclosed in this paper. In addition to this, the comparative results concerning manufactured borers quality obtained by this technology in exploitation conditions, at the BF Plant, and results attained by applying traditional technology, have been presented in this paper too. A brief economic evaluation of the new solution has been given. Thereby, savings have not been taken into consideration, achieved by improving the iron notch quality and increasing the BF operation efficiency., U okviru ovog rada prikazanje aluminotermijski postupak izrade i zavarivanja vrha tela burgije koje se koriste za otvaranje visoke peći tokom ispuštanja gvožđa, kao i zavarivanje zaostalih komada čeličnog šipkastog materijala tela burgija prečnika 40mm, u cilju reciklaže istim postupkom. U tom cilju projektovana su dva tipa aluminotermijskih mešavina i to: Pyrkonit-VB, čijom se reakcijom dobija termitni čelik, zadatih karakteristika, koji se izliva u kalupni prostor vrha burgije koji se istovremeno zavaruje za telo, Pyrkonit-TB, kojom se zavaruju zaostali, nakon izrade otvora, nerastopljeni komadi tela burgija, u cilju reciklaže. Na osnovu proračuna ulivnog sistema definisana je tehnologija izlivanja termitnog čelika iz odgovarajućih reakcionih lonaca koji su ujedno i kalupi. Date su karakteristike zavarenih spojeva i uporedni rezultati primene izrađenih burgija ovom tehnologijom, u industrijskim uslovima na Visokoj peći Sartid Smederevo sa rezultatima primene tradicionalne tehnologije-kovane burgije (oko 600 komada mesečno). Prikazana je kraća ekonomska ocena novog rešenja, pri čemu nisu uzete u obzir indirektne uštede koje se ostvaruju povećanjem efikasnosti rada visoke peći.",
publisher = "Institut za istrazivanja i projektovanja u privredi",
journal = "Journal of Applied Engineering Science",
title = "A new technological solution for the manufacture of a borer for iron notch opening at the blast furnace plant, Primena aluminotermijskog postupka izrade i zavarivanja vrha burgija koje se koriste za otvoranje visoke peći tokom ispusta gvožđa",
pages = "48-43",
number = "6",
volume = "2",
url = "https://hdl.handle.net/21.15107/rcub_technorep_671"
}

Gavrilovski, M., Tasić, M., Kamberović, Ž.,& Pavlović, J.. (2004). A new technological solution for the manufacture of a borer for iron notch opening at the blast furnace plant. in Journal of Applied Engineering Science
Institut za istrazivanja i projektovanja u privredi., 2(6), 43-48.
https://hdl.handle.net/21.15107/rcub_technorep_671

Gavrilovski M, Tasić M, Kamberović Ž, Pavlović J. A new technological solution for the manufacture of a borer for iron notch opening at the blast furnace plant. in Journal of Applied Engineering Science. 2004;2(6):43-48.
https://hdl.handle.net/21.15107/rcub_technorep_671 .

Gavrilovski, Milorad, Tasić, Miloš, Kamberović, Željko, Pavlović, Jelena, "A new technological solution for the manufacture of a borer for iron notch opening at the blast furnace plant" in Journal of Applied Engineering Science, 2, no. 6 (2004):43-48,
https://hdl.handle.net/21.15107/rcub_technorep_671 .