TY  - JOUR
AU  - Radenković, Marina
AU  - Petrović, Jelena
AU  - Pap, Sabolc
AU  - Kalijadis, Ana
AU  - Momčilović, Miloš
AU  - Krstulović, Nikša
AU  - Živković, Sanja
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12206
AB  - Toxic elements, lead, and copper are often found in wastewater discharged from industries such as mining. The discharge of untreated effluent poses severe environmental challenges and sorption methods using agricultural waste materials are proposed as an efficient and cost-effective solution. For this research, activated sunflower material (ASM) was prepared from abundantly available agricultural sunflower waste residues and utilised to remove Pb2+ and Cu2+ ions from an aqueous medium. To begin, we examine variables that may have an impact on the adsorption process, such as pH, contact time, adsorbent dose, and initial concentration using Box-Behnken Design (BBD) to find optimal conditions. Maximum removal efficiency was found at a pH of 5, contact time of 180 min, and initial concentration of 50 mg/L for Pb2+ and 150 mg/L for Cu2+. Additionally, adsorbent dose differed by element, for Cu2+ it was 200 mg, whilst for Pb2+ it was 124 mg. Features of activated carbon such as morphology, elemental composition, textural properties, and surface functionalities were characterised using SEM-EDS, BET, FTIR, and XPS. The adsorption equilibrium data were analysed by Langmuir, Freundlich, and Dubinin-Radushkevich isotherm models. It was found that the obtained results for Pb2+ adsorption were better described with the Freundlich isotherm model. Maximum adsorption capacities for Pb2+ and Cu2+ were 91.8 mg/g and 20.5 mg/g, respectively. Furthermore, kinetic studies confirmed that the adsorption process followed a pseudo-first-order kinetic model for Pb2+, but for Cu2+ all applied kinetic models fitted experimental data with the same values of the correlation coefficient (R2 = 0.99). After comprehensive analysis using the methods mentioned above, ASM was tested for the removal of Cu2+ from mining wastewater sample, and the obtained removal efficiency was 98.6% ± 2.0%. The results of desorption experiments conducted, confirm that ASM has good potential to be reused for the purpose of removing Cu2+ from wastewater.
T2  - Chemosphere
T1  - Waste biomass derived highly-porous carbon material for toxic metal removal: Optimisation, mechanisms and environmental implications
VL  - 347
SP  - 140684
DO  - 10.1016/j.chemosphere.2023.140684
ER  - 

@article{
author = "Radenković, Marina and Petrović, Jelena and Pap, Sabolc and Kalijadis, Ana and Momčilović, Miloš and Krstulović, Nikša and Živković, Sanja",
year = "2024",
abstract = "Toxic elements, lead, and copper are often found in wastewater discharged from industries such as mining. The discharge of untreated effluent poses severe environmental challenges and sorption methods using agricultural waste materials are proposed as an efficient and cost-effective solution. For this research, activated sunflower material (ASM) was prepared from abundantly available agricultural sunflower waste residues and utilised to remove Pb2+ and Cu2+ ions from an aqueous medium. To begin, we examine variables that may have an impact on the adsorption process, such as pH, contact time, adsorbent dose, and initial concentration using Box-Behnken Design (BBD) to find optimal conditions. Maximum removal efficiency was found at a pH of 5, contact time of 180 min, and initial concentration of 50 mg/L for Pb2+ and 150 mg/L for Cu2+. Additionally, adsorbent dose differed by element, for Cu2+ it was 200 mg, whilst for Pb2+ it was 124 mg. Features of activated carbon such as morphology, elemental composition, textural properties, and surface functionalities were characterised using SEM-EDS, BET, FTIR, and XPS. The adsorption equilibrium data were analysed by Langmuir, Freundlich, and Dubinin-Radushkevich isotherm models. It was found that the obtained results for Pb2+ adsorption were better described with the Freundlich isotherm model. Maximum adsorption capacities for Pb2+ and Cu2+ were 91.8 mg/g and 20.5 mg/g, respectively. Furthermore, kinetic studies confirmed that the adsorption process followed a pseudo-first-order kinetic model for Pb2+, but for Cu2+ all applied kinetic models fitted experimental data with the same values of the correlation coefficient (R2 = 0.99). After comprehensive analysis using the methods mentioned above, ASM was tested for the removal of Cu2+ from mining wastewater sample, and the obtained removal efficiency was 98.6% ± 2.0%. The results of desorption experiments conducted, confirm that ASM has good potential to be reused for the purpose of removing Cu2+ from wastewater.",
journal = "Chemosphere",
title = "Waste biomass derived highly-porous carbon material for toxic metal removal: Optimisation, mechanisms and environmental implications",
volume = "347",
pages = "140684",
doi = "10.1016/j.chemosphere.2023.140684"
}

Radenković, M., Petrović, J., Pap, S., Kalijadis, A., Momčilović, M., Krstulović, N.,& Živković, S.. (2024). Waste biomass derived highly-porous carbon material for toxic metal removal: Optimisation, mechanisms and environmental implications. in Chemosphere, 347, 140684.
https://doi.org/10.1016/j.chemosphere.2023.140684

Radenković M, Petrović J, Pap S, Kalijadis A, Momčilović M, Krstulović N, Živković S. Waste biomass derived highly-porous carbon material for toxic metal removal: Optimisation, mechanisms and environmental implications. in Chemosphere. 2024;347:140684.
doi:10.1016/j.chemosphere.2023.140684 .

Radenković, Marina, Petrović, Jelena, Pap, Sabolc, Kalijadis, Ana, Momčilović, Miloš, Krstulović, Nikša, Živković, Sanja, "Waste biomass derived highly-porous carbon material for toxic metal removal: Optimisation, mechanisms and environmental implications" in Chemosphere, 347 (2024):140684,
https://doi.org/10.1016/j.chemosphere.2023.140684 . .

TY  - CONF
AU  - Živković, Sanja
AU  - Petrović, Jelena D.
AU  - Momčilović, Miloš
AU  - Radenković, Marina
AU  - Krstulović, Nikša
AU  - Car, Julio
AU  - Palásti, Dávid
AU  - Galbács, Gábor
AU  - Casian-Plaza, Fernando
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12660
AB  - In this work, signal enhancement of the original TEA CO2 LIBS setup was studied. Two different methods for copper nanoparticle synthesis were applied. Obtained nanoparticles were characterized and then used for Nanoparticle-Enhanced Laser-Induced Breakdown Spectroscopy (NELIBS) of plastic polypropylene. Preliminary results have shown that improvement in the analytical sensitivity for the detection of Cr in plastic materials was achieved.
C3  - Publications of the Astronomical Observatory of Belgrade
T1  - Perspective on the use of nanoparticles to improve the tea CO2 based LIBS analytical performances: copper nanoparticles for NELIBS analysis of polypropylene
VL  - 102
SP  - 149
EP  - 152
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12660
ER  - 

@conference{
author = "Živković, Sanja and Petrović, Jelena D. and Momčilović, Miloš and Radenković, Marina and Krstulović, Nikša and Car, Julio and Palásti, Dávid and Galbács, Gábor and Casian-Plaza, Fernando",
year = "2022",
abstract = "In this work, signal enhancement of the original TEA CO2 LIBS setup was studied. Two different methods for copper nanoparticle synthesis were applied. Obtained nanoparticles were characterized and then used for Nanoparticle-Enhanced Laser-Induced Breakdown Spectroscopy (NELIBS) of plastic polypropylene. Preliminary results have shown that improvement in the analytical sensitivity for the detection of Cr in plastic materials was achieved.",
journal = "Publications of the Astronomical Observatory of Belgrade",
title = "Perspective on the use of nanoparticles to improve the tea CO2 based LIBS analytical performances: copper nanoparticles for NELIBS analysis of polypropylene",
volume = "102",
pages = "149-152",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12660"
}

Živković, S., Petrović, J. D., Momčilović, M., Radenković, M., Krstulović, N., Car, J., Palásti, D., Galbács, G.,& Casian-Plaza, F.. (2022). Perspective on the use of nanoparticles to improve the tea CO2 based LIBS analytical performances: copper nanoparticles for NELIBS analysis of polypropylene. in Publications of the Astronomical Observatory of Belgrade, 102, 149-152.
https://hdl.handle.net/21.15107/rcub_vinar_12660

Živković S, Petrović JD, Momčilović M, Radenković M, Krstulović N, Car J, Palásti D, Galbács G, Casian-Plaza F. Perspective on the use of nanoparticles to improve the tea CO2 based LIBS analytical performances: copper nanoparticles for NELIBS analysis of polypropylene. in Publications of the Astronomical Observatory of Belgrade. 2022;102:149-152.
https://hdl.handle.net/21.15107/rcub_vinar_12660 .

Živković, Sanja, Petrović, Jelena D., Momčilović, Miloš, Radenković, Marina, Krstulović, Nikša, Car, Julio, Palásti, Dávid, Galbács, Gábor, Casian-Plaza, Fernando, "Perspective on the use of nanoparticles to improve the tea CO2 based LIBS analytical performances: copper nanoparticles for NELIBS analysis of polypropylene" in Publications of the Astronomical Observatory of Belgrade, 102 (2022):149-152,
https://hdl.handle.net/21.15107/rcub_vinar_12660 .

TY  - CONF
AU  - Joksimović, Antonija
AU  - Petrović, Jelena D.
AU  - Blažeka, Damjan
AU  - Živković, Sanja
AU  - Krstulović, Nikša
AU  - Momčilović, Miloš
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12733
AB  - U ovom radu ispitivana je mogućnost primene nanočestica ZnO za fotokatalitičku degradaciju boje bromkrezol zeleno i komercijalno dostupne boje za bojenje tekstila. Vodena suspenzija nanočestica ZnO dobijena je laserskom ablacijom [1]. Koncentracija nanočestica određena je metodom ISP-OES. Rastvori boje sa različitim količinama nanočestica izlagani su dejstvu UVC zračenja i to u intervalima od 5 minuta u ukupnom trajanju od sat vremena. Degradacija boja u toku ozračivanja utvrđena je merenjem apsorbancije UV-VIS spektrometrijom pre, tokom i nakon ozračivanja. Preliminarni rezultati potvrdili su početnu pretpostavku da se nanočestice dobijene laserskom sintezom mogu koristiti za degradaciju boja.
AB  - In this paper, the possible use of ZnO nanoparticles for photocatalytic degradation of dyes, in particular bromocresol green and commercial textile dyes, was examined. А water suspension of ZnO nanoparticles was prepared by laser ablation. Concentration of nanoparticles was measured by ICP-OES technique. Dyes solutions with different amounts of nanoparticles were exposed to UVC irradiation at 5 minute intervals for a total period of 1 hour. Degradation of dyes during irradiation was determined by UV-VIS spectroscopy by measuring solution absorbance before, during, and after exposition. Preliminary results confirmed the initial assumption that laser synthesized nanoparticles could be used for dye degradation.
PB  - Belgrade : Serbian Chemical Society
C3  - 58th Meeting of the Serbian Chemical Society : Book of Abstracts and Proceedings
T1  - Fotokatalitička primena laserski sintetisanih nanočestica
T1  - Photocatalytic application of laser synthesized nanoparticles
SP  - 159
EP  - 159
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12733
ER  - 

@conference{
author = "Joksimović, Antonija and Petrović, Jelena D. and Blažeka, Damjan and Živković, Sanja and Krstulović, Nikša and Momčilović, Miloš",
year = "2022",
abstract = "U ovom radu ispitivana je mogućnost primene nanočestica ZnO za fotokatalitičku degradaciju boje bromkrezol zeleno i komercijalno dostupne boje za bojenje tekstila. Vodena suspenzija nanočestica ZnO dobijena je laserskom ablacijom [1]. Koncentracija nanočestica određena je metodom ISP-OES. Rastvori boje sa različitim količinama nanočestica izlagani su dejstvu UVC zračenja i to u intervalima od 5 minuta u ukupnom trajanju od sat vremena. Degradacija boja u toku ozračivanja utvrđena je merenjem apsorbancije UV-VIS spektrometrijom pre, tokom i nakon ozračivanja. Preliminarni rezultati potvrdili su početnu pretpostavku da se nanočestice dobijene laserskom sintezom mogu koristiti za degradaciju boja., In this paper, the possible use of ZnO nanoparticles for photocatalytic degradation of dyes, in particular bromocresol green and commercial textile dyes, was examined. А water suspension of ZnO nanoparticles was prepared by laser ablation. Concentration of nanoparticles was measured by ICP-OES technique. Dyes solutions with different amounts of nanoparticles were exposed to UVC irradiation at 5 minute intervals for a total period of 1 hour. Degradation of dyes during irradiation was determined by UV-VIS spectroscopy by measuring solution absorbance before, during, and after exposition. Preliminary results confirmed the initial assumption that laser synthesized nanoparticles could be used for dye degradation.",
publisher = "Belgrade : Serbian Chemical Society",
journal = "58th Meeting of the Serbian Chemical Society : Book of Abstracts and Proceedings",
title = "Fotokatalitička primena laserski sintetisanih nanočestica, Photocatalytic application of laser synthesized nanoparticles",
pages = "159-159",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12733"
}

Joksimović, A., Petrović, J. D., Blažeka, D., Živković, S., Krstulović, N.,& Momčilović, M.. (2022). Fotokatalitička primena laserski sintetisanih nanočestica. in 58th Meeting of the Serbian Chemical Society : Book of Abstracts and Proceedings
Belgrade : Serbian Chemical Society., 159-159.
https://hdl.handle.net/21.15107/rcub_vinar_12733

Joksimović A, Petrović JD, Blažeka D, Živković S, Krstulović N, Momčilović M. Fotokatalitička primena laserski sintetisanih nanočestica. in 58th Meeting of the Serbian Chemical Society : Book of Abstracts and Proceedings. 2022;:159-159.
https://hdl.handle.net/21.15107/rcub_vinar_12733 .

Joksimović, Antonija, Petrović, Jelena D., Blažeka, Damjan, Živković, Sanja, Krstulović, Nikša, Momčilović, Miloš, "Fotokatalitička primena laserski sintetisanih nanočestica" in 58th Meeting of the Serbian Chemical Society : Book of Abstracts and Proceedings (2022):159-159,
https://hdl.handle.net/21.15107/rcub_vinar_12733 .

TY  - JOUR
AU  - Blažeka, Damjan
AU  - Radičić, Rafaela
AU  - Maletić, Dejan
AU  - Živković, Sanja
AU  - Momčilović, Miloš
AU  - Krstulović, Nikša
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10407
AB  - In this work, Ag-doped ZnO nanoparticles are obtained via pulsed laser ablation of the Ag-coated ZnO target in water. The ratio of Ag dopant in ZnO nanoparticles strongly depends on the thickness of the Ag layer at the ZnO target. Synthesized nanoparticles were characterized by XRD, XPS, SEM, EDS, ICP-OES, and UV–VIS spectrophotometry to obtain their crystal structure, elemental composition, morphology and size distribution, mass concentration, and optical properties, respectively. The photocatalytic studies showed photodegradation of methylene blue (MB) under UV irradiation. Different ratios of Ag dopant in ZnO nanoparticles influence the photodegradation rate. The ZnO nanoparticles doped with 0.32% silver show the most efficient photodegradation rate, with the chemical reaction constant of 0.0233 min−1. It exhibits an almost twice as large photodegradation rate compared to pure ZnO nanoparticles, showing the doping effect on the photocatalytic activity.
T2  - Nanomaterials
T1  - Enhancement of Methylene Blue Photodegradation Rate Using Laser Synthesized Ag-Doped ZnO Nanoparticles
VL  - 12
IS  - 15
SP  - 2677
DO  - 10.3390/nano12152677
ER  - 

@article{
author = "Blažeka, Damjan and Radičić, Rafaela and Maletić, Dejan and Živković, Sanja and Momčilović, Miloš and Krstulović, Nikša",
year = "2022",
abstract = "In this work, Ag-doped ZnO nanoparticles are obtained via pulsed laser ablation of the Ag-coated ZnO target in water. The ratio of Ag dopant in ZnO nanoparticles strongly depends on the thickness of the Ag layer at the ZnO target. Synthesized nanoparticles were characterized by XRD, XPS, SEM, EDS, ICP-OES, and UV–VIS spectrophotometry to obtain their crystal structure, elemental composition, morphology and size distribution, mass concentration, and optical properties, respectively. The photocatalytic studies showed photodegradation of methylene blue (MB) under UV irradiation. Different ratios of Ag dopant in ZnO nanoparticles influence the photodegradation rate. The ZnO nanoparticles doped with 0.32% silver show the most efficient photodegradation rate, with the chemical reaction constant of 0.0233 min−1. It exhibits an almost twice as large photodegradation rate compared to pure ZnO nanoparticles, showing the doping effect on the photocatalytic activity.",
journal = "Nanomaterials",
title = "Enhancement of Methylene Blue Photodegradation Rate Using Laser Synthesized Ag-Doped ZnO Nanoparticles",
volume = "12",
number = "15",
pages = "2677",
doi = "10.3390/nano12152677"
}

Blažeka, D., Radičić, R., Maletić, D., Živković, S., Momčilović, M.,& Krstulović, N.. (2022). Enhancement of Methylene Blue Photodegradation Rate Using Laser Synthesized Ag-Doped ZnO Nanoparticles. in Nanomaterials, 12(15), 2677.
https://doi.org/10.3390/nano12152677

Blažeka D, Radičić R, Maletić D, Živković S, Momčilović M, Krstulović N. Enhancement of Methylene Blue Photodegradation Rate Using Laser Synthesized Ag-Doped ZnO Nanoparticles. in Nanomaterials. 2022;12(15):2677.
doi:10.3390/nano12152677 .

Blažeka, Damjan, Radičić, Rafaela, Maletić, Dejan, Živković, Sanja, Momčilović, Miloš, Krstulović, Nikša, "Enhancement of Methylene Blue Photodegradation Rate Using Laser Synthesized Ag-Doped ZnO Nanoparticles" in Nanomaterials, 12, no. 15 (2022):2677,
https://doi.org/10.3390/nano12152677 . .