TY  - JOUR
AU  - Zarubica, Aleksandra
AU  - Sredojević, Dušan
AU  - Ljupković, Radomir
AU  - Ranđelović, Marjan
AU  - Murafa, Natalija
AU  - Stoiljković, Milovan
AU  - Lazić, Vesna
AU  - Nedeljković, Jovan
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10874
AB  - The interfacial charge transfer (ICT) complex formation between zirconium dioxide (ZrO2), the material absorbing below 250 nm, and 5-aminosalicylic acid (5-ASA) leads to the formation of visible-light-absorbing inorganic–organic hybrids. The free amino groups, present on the hybrid's surface after the ICT complex formation, were used to reduce silver ions and link silver particles to ZrO2. The prepared samples were characterized by using transmission electron microscopy, X-ray diffraction analysis, and nitrogen adsorption–desorption isotherms. Density functional theory (DFT) calculations using a cluster model are applied to explain optical changes in hybrids, i.e., absorption redshift induced by the ICT complex formation. Decolorization of an organic dye crystal violet (CV), under ultraviolet-C or visible light, was used to compare the photocatalytic ability of the prepared samples. The ICT complex formation transformed ZrO2 into a hybrid material able to induce photocatalytic reactions under exclusive visible light excitation.
T2  - Sustainable Energy and Fuels
T1  - Photocatalytic ability of visible-light-responsive hybrid ZrO2 particles
VL  - 7
IS  - 9
SP  - 2279
EP  - 2287
DO  - 10.1039/D3SE00175J
ER  - 

@article{
author = "Zarubica, Aleksandra and Sredojević, Dušan and Ljupković, Radomir and Ranđelović, Marjan and Murafa, Natalija and Stoiljković, Milovan and Lazić, Vesna and Nedeljković, Jovan",
year = "2023",
abstract = "The interfacial charge transfer (ICT) complex formation between zirconium dioxide (ZrO2), the material absorbing below 250 nm, and 5-aminosalicylic acid (5-ASA) leads to the formation of visible-light-absorbing inorganic–organic hybrids. The free amino groups, present on the hybrid's surface after the ICT complex formation, were used to reduce silver ions and link silver particles to ZrO2. The prepared samples were characterized by using transmission electron microscopy, X-ray diffraction analysis, and nitrogen adsorption–desorption isotherms. Density functional theory (DFT) calculations using a cluster model are applied to explain optical changes in hybrids, i.e., absorption redshift induced by the ICT complex formation. Decolorization of an organic dye crystal violet (CV), under ultraviolet-C or visible light, was used to compare the photocatalytic ability of the prepared samples. The ICT complex formation transformed ZrO2 into a hybrid material able to induce photocatalytic reactions under exclusive visible light excitation.",
journal = "Sustainable Energy and Fuels",
title = "Photocatalytic ability of visible-light-responsive hybrid ZrO2 particles",
volume = "7",
number = "9",
pages = "2279-2287",
doi = "10.1039/D3SE00175J"
}

Zarubica, A., Sredojević, D., Ljupković, R., Ranđelović, M., Murafa, N., Stoiljković, M., Lazić, V.,& Nedeljković, J.. (2023). Photocatalytic ability of visible-light-responsive hybrid ZrO2 particles. in Sustainable Energy and Fuels, 7(9), 2279-2287.
https://doi.org/10.1039/D3SE00175J

Zarubica A, Sredojević D, Ljupković R, Ranđelović M, Murafa N, Stoiljković M, Lazić V, Nedeljković J. Photocatalytic ability of visible-light-responsive hybrid ZrO2 particles. in Sustainable Energy and Fuels. 2023;7(9):2279-2287.
doi:10.1039/D3SE00175J .

Zarubica, Aleksandra, Sredojević, Dušan, Ljupković, Radomir, Ranđelović, Marjan, Murafa, Natalija, Stoiljković, Milovan, Lazić, Vesna, Nedeljković, Jovan, "Photocatalytic ability of visible-light-responsive hybrid ZrO2 particles" in Sustainable Energy and Fuels, 7, no. 9 (2023):2279-2287,
https://doi.org/10.1039/D3SE00175J . .

TY  - CONF
AU  - Rosić, Milena
AU  - Milošević, Maja
AU  - Čebela, Maria
AU  - Dodevski, Vladimir
AU  - Lojpur, Vesna
AU  - Ljupković, Radomir
AU  - Zarubica, Aleksandra
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11490
AB  - Co0.9Ho0.1MoO4 nanopowders were obtained by applying glycine nitrate procedure (GNP). The synthesized samples were investigated by DTA, X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectra, Spectroscopy, Field emission scanning electron microscopy (FESEM), and nitrogen adsorption method. The photocatalytic activity of acquired Co0.9Ho0.1MoO4 nanopowders was estimated by the photocatalytic degradation of crystal violet in aqueous solution. A simple and effective method for controlling the composition and morphology of Co0.9Ho0.1MoO4 is presented in this paper, as well as a potentially new approach in the methodology of inorganic synthesis. During photocatalytic testing nanostructured material Co0.9Ho0.1MoO4 indicated the possibility of a promising solution in photocatalytic processes towards green chemistry and sustainable development.
PB  - Belgrade : University of Belgrade, Institute for Multidisciplinary Research
C3  - Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade
T1  - Synthesis, characterization and photocatalytic examination of Co0.9Ho0.1MoO4 nanopowders
SP  - 81
EP  - 81
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11490
ER  - 

@conference{
author = "Rosić, Milena and Milošević, Maja and Čebela, Maria and Dodevski, Vladimir and Lojpur, Vesna and Ljupković, Radomir and Zarubica, Aleksandra",
year = "2023",
abstract = "Co0.9Ho0.1MoO4 nanopowders were obtained by applying glycine nitrate procedure (GNP). The synthesized samples were investigated by DTA, X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectra, Spectroscopy, Field emission scanning electron microscopy (FESEM), and nitrogen adsorption method. The photocatalytic activity of acquired Co0.9Ho0.1MoO4 nanopowders was estimated by the photocatalytic degradation of crystal violet in aqueous solution. A simple and effective method for controlling the composition and morphology of Co0.9Ho0.1MoO4 is presented in this paper, as well as a potentially new approach in the methodology of inorganic synthesis. During photocatalytic testing nanostructured material Co0.9Ho0.1MoO4 indicated the possibility of a promising solution in photocatalytic processes towards green chemistry and sustainable development.",
publisher = "Belgrade : University of Belgrade, Institute for Multidisciplinary Research",
journal = "Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade",
title = "Synthesis, characterization and photocatalytic examination of Co0.9Ho0.1MoO4 nanopowders",
pages = "81-81",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11490"
}

Rosić, M., Milošević, M., Čebela, M., Dodevski, V., Lojpur, V., Ljupković, R.,& Zarubica, A.. (2023). Synthesis, characterization and photocatalytic examination of Co0.9Ho0.1MoO4 nanopowders. in Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade
Belgrade : University of Belgrade, Institute for Multidisciplinary Research., 81-81.
https://hdl.handle.net/21.15107/rcub_vinar_11490

Rosić M, Milošević M, Čebela M, Dodevski V, Lojpur V, Ljupković R, Zarubica A. Synthesis, characterization and photocatalytic examination of Co0.9Ho0.1MoO4 nanopowders. in Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade. 2023;:81-81.
https://hdl.handle.net/21.15107/rcub_vinar_11490 .

Rosić, Milena, Milošević, Maja, Čebela, Maria, Dodevski, Vladimir, Lojpur, Vesna, Ljupković, Radomir, Zarubica, Aleksandra, "Synthesis, characterization and photocatalytic examination of Co0.9Ho0.1MoO4 nanopowders" in Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade (2023):81-81,
https://hdl.handle.net/21.15107/rcub_vinar_11490 .

TY  - CONF
AU  - Rosić, Milena
AU  - Milošević, M.
AU  - Čebela, Maria
AU  - Dodevski, Vladimir
AU  - Lojpur, Vesna
AU  - Ljupković, Radomir
AU  - Zarubica, Aleksandra
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11750
AB  - Nanometric size Co0.9Ho0.1MoO4 powder particles were obtained by applying glycine nitrate procedure (GNP). Powder properties have been studied by DTA, X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectra, Spectroscopy, Field emission scanning electron microscopy (FESEM), and nitrogen adsorption method. The photocatalytic activity of acquiring Co0.9Ho0.1MoO4 nanopowders was estimated by the photocatalytic degradation of crystal violet in an aqueous solution. We present a simple and effective method for controlling the composition and morphology of Co0.9Ho0.1MoO4, as well as a possible new approach in inorganic synthesis methodology. During photocatalytic testing, the studied nanoparticle powder indicated a potentially promising solution in photocatalytic processes toward green chemistry and sustainable development.
PB  - Society of Chemists and Technologists of Macedonia
C3  - 26th Congress of the Society of Chemists and Technologists of Macedonia : the book of abstracts; September 20-23, Ohrid, Macedonia
T1  - Investigation of Co0.9Ho0.1MoO4 Nanopowders Obtained by Glycine Nitrate Procedure
SP  - 22
EP  - 22
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11750
ER  - 

@conference{
author = "Rosić, Milena and Milošević, M. and Čebela, Maria and Dodevski, Vladimir and Lojpur, Vesna and Ljupković, Radomir and Zarubica, Aleksandra",
year = "2023",
abstract = "Nanometric size Co0.9Ho0.1MoO4 powder particles were obtained by applying glycine nitrate procedure (GNP). Powder properties have been studied by DTA, X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectra, Spectroscopy, Field emission scanning electron microscopy (FESEM), and nitrogen adsorption method. The photocatalytic activity of acquiring Co0.9Ho0.1MoO4 nanopowders was estimated by the photocatalytic degradation of crystal violet in an aqueous solution. We present a simple and effective method for controlling the composition and morphology of Co0.9Ho0.1MoO4, as well as a possible new approach in inorganic synthesis methodology. During photocatalytic testing, the studied nanoparticle powder indicated a potentially promising solution in photocatalytic processes toward green chemistry and sustainable development.",
publisher = "Society of Chemists and Technologists of Macedonia",
journal = "26th Congress of the Society of Chemists and Technologists of Macedonia : the book of abstracts; September 20-23, Ohrid, Macedonia",
title = "Investigation of Co0.9Ho0.1MoO4 Nanopowders Obtained by Glycine Nitrate Procedure",
pages = "22-22",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11750"
}

Rosić, M., Milošević, M., Čebela, M., Dodevski, V., Lojpur, V., Ljupković, R.,& Zarubica, A.. (2023). Investigation of Co0.9Ho0.1MoO4 Nanopowders Obtained by Glycine Nitrate Procedure. in 26th Congress of the Society of Chemists and Technologists of Macedonia : the book of abstracts; September 20-23, Ohrid, Macedonia
Society of Chemists and Technologists of Macedonia., 22-22.
https://hdl.handle.net/21.15107/rcub_vinar_11750

Rosić M, Milošević M, Čebela M, Dodevski V, Lojpur V, Ljupković R, Zarubica A. Investigation of Co0.9Ho0.1MoO4 Nanopowders Obtained by Glycine Nitrate Procedure. in 26th Congress of the Society of Chemists and Technologists of Macedonia : the book of abstracts; September 20-23, Ohrid, Macedonia. 2023;:22-22.
https://hdl.handle.net/21.15107/rcub_vinar_11750 .

Rosić, Milena, Milošević, M., Čebela, Maria, Dodevski, Vladimir, Lojpur, Vesna, Ljupković, Radomir, Zarubica, Aleksandra, "Investigation of Co0.9Ho0.1MoO4 Nanopowders Obtained by Glycine Nitrate Procedure" in 26th Congress of the Society of Chemists and Technologists of Macedonia : the book of abstracts; September 20-23, Ohrid, Macedonia (2023):22-22,
https://hdl.handle.net/21.15107/rcub_vinar_11750 .

TY  - CONF
AU  - Rosić, Milena
AU  - Čebela, Maria
AU  - Jordanov, Dragana
AU  - Labus, Nebojša
AU  - Vasić Jovev, Marija
AU  - Ljupković, Radomir
AU  - Zarubica, Aleksandra
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11509
AB  - Nanosized CoMoO4 solid solution was successfully synthesized at room temperature using simple and fast Self Propagating Room Temperature procedure (SPRT). The structural, textural, morphological and surface characteristics of the nanosized CoMoO4 were examined in detail by X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectra, Field emission scanning electron microscopy (FESEM), and nitrogen sorption method. X-ray powder diffraction (XRPD) reflected the presence of two different phases that are in the same space group. The α-CoMoO4 and the β-CoMoO4 modification crystallizes in the monoclinic space group C2/m, No.12, but the β-phase clearly distinct from the α-phase due to the tetrahedral coordination of the Mo6+ ions. Adsorption tests were studied over CoMoO4 nanopowders under different experimental conditions (material dosage, initial concentration of pollutant textile dye, etc). The obtained results showed acceptable sorption characteristics of the material.
PB  - University of Belgrade : Institute for Multidisciplinary Research
C3  - 6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade
T1  - Investigating sorptive aspects of CoMoO4 nanopowders synthesized by sprt method
SP  - 55
EP  - 56
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11509
ER  - 

@conference{
author = "Rosić, Milena and Čebela, Maria and Jordanov, Dragana and Labus, Nebojša and Vasić Jovev, Marija and Ljupković, Radomir and Zarubica, Aleksandra",
year = "2022",
abstract = "Nanosized CoMoO4 solid solution was successfully synthesized at room temperature using simple and fast Self Propagating Room Temperature procedure (SPRT). The structural, textural, morphological and surface characteristics of the nanosized CoMoO4 were examined in detail by X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectra, Field emission scanning electron microscopy (FESEM), and nitrogen sorption method. X-ray powder diffraction (XRPD) reflected the presence of two different phases that are in the same space group. The α-CoMoO4 and the β-CoMoO4 modification crystallizes in the monoclinic space group C2/m, No.12, but the β-phase clearly distinct from the α-phase due to the tetrahedral coordination of the Mo6+ ions. Adsorption tests were studied over CoMoO4 nanopowders under different experimental conditions (material dosage, initial concentration of pollutant textile dye, etc). The obtained results showed acceptable sorption characteristics of the material.",
publisher = "University of Belgrade : Institute for Multidisciplinary Research",
journal = "6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade",
title = "Investigating sorptive aspects of CoMoO4 nanopowders synthesized by sprt method",
pages = "55-56",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11509"
}

Rosić, M., Čebela, M., Jordanov, D., Labus, N., Vasić Jovev, M., Ljupković, R.,& Zarubica, A.. (2022). Investigating sorptive aspects of CoMoO4 nanopowders synthesized by sprt method. in 6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade
University of Belgrade : Institute for Multidisciplinary Research., 55-56.
https://hdl.handle.net/21.15107/rcub_vinar_11509

Rosić M, Čebela M, Jordanov D, Labus N, Vasić Jovev M, Ljupković R, Zarubica A. Investigating sorptive aspects of CoMoO4 nanopowders synthesized by sprt method. in 6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade. 2022;:55-56.
https://hdl.handle.net/21.15107/rcub_vinar_11509 .

Rosić, Milena, Čebela, Maria, Jordanov, Dragana, Labus, Nebojša, Vasić Jovev, Marija, Ljupković, Radomir, Zarubica, Aleksandra, "Investigating sorptive aspects of CoMoO4 nanopowders synthesized by sprt method" in 6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade (2022):55-56,
https://hdl.handle.net/21.15107/rcub_vinar_11509 .

TY  - JOUR
AU  - Marinković, Miloš
AU  - Waisi, Hadi
AU  - Blagojević, Stevan
AU  - Zarubica, Aleksandra R.
AU  - Ljupković, Radomir
AU  - Krstić, Aleksandra
AU  - Janković, Bojan Ž.
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10134
AB  - The essence of this study is synthesis of a newly developed and efficient heterogeneous catalyst based on aluminum oxide support promoted with potassium iodide (KI) as active dopant responsible for pronounced catalyst activity. Modified sol–gel, reflux and hydrothermal method were used for synthesis of aluminum-oxide support using aluminum isopropoxide as a precursor. The γ-Al2O3 support and KI/γ-Al2O3 catalyst samples were examined by various experimental techniques. Effects of several operational parameters were considered and those are: methanol to sunflower oil molar ratio, catalyst loadings, reaction time and reaction stirring rate. The obtained results indicated that modified sol–gel method for synthesis of γ-Al2O3 catalyst support is the most favorable for obtaining the catalyst with superior catalytic performances in transesterification of sunflower oil. A maximum conversion (triglycerides to methyl esters) of 99.99% was achieved using the SG-KI/γ-Al2O3-770 catalyst under following optimal process parameters: 15:1 methanol to sunflower oil molar ratio, 2.5 wt% catalysts loading, 600 rpm stirring rate and 4 h of the reaction run.
T2  - Fuel
T1  - The effect of process parameters and catalyst support preparation methods on the catalytic efficiency in transesterification of sunflower oil over heterogeneous KI/Al2O3-based catalysts for biodiesel production
VL  - 315
SP  - 123246
DO  - 10.1016/j.fuel.2022.123246
ER  - 

@article{
author = "Marinković, Miloš and Waisi, Hadi and Blagojević, Stevan and Zarubica, Aleksandra R. and Ljupković, Radomir and Krstić, Aleksandra and Janković, Bojan Ž.",
year = "2022",
abstract = "The essence of this study is synthesis of a newly developed and efficient heterogeneous catalyst based on aluminum oxide support promoted with potassium iodide (KI) as active dopant responsible for pronounced catalyst activity. Modified sol–gel, reflux and hydrothermal method were used for synthesis of aluminum-oxide support using aluminum isopropoxide as a precursor. The γ-Al2O3 support and KI/γ-Al2O3 catalyst samples were examined by various experimental techniques. Effects of several operational parameters were considered and those are: methanol to sunflower oil molar ratio, catalyst loadings, reaction time and reaction stirring rate. The obtained results indicated that modified sol–gel method for synthesis of γ-Al2O3 catalyst support is the most favorable for obtaining the catalyst with superior catalytic performances in transesterification of sunflower oil. A maximum conversion (triglycerides to methyl esters) of 99.99% was achieved using the SG-KI/γ-Al2O3-770 catalyst under following optimal process parameters: 15:1 methanol to sunflower oil molar ratio, 2.5 wt% catalysts loading, 600 rpm stirring rate and 4 h of the reaction run.",
journal = "Fuel",
title = "The effect of process parameters and catalyst support preparation methods on the catalytic efficiency in transesterification of sunflower oil over heterogeneous KI/Al2O3-based catalysts for biodiesel production",
volume = "315",
pages = "123246",
doi = "10.1016/j.fuel.2022.123246"
}

Marinković, M., Waisi, H., Blagojević, S., Zarubica, A. R., Ljupković, R., Krstić, A.,& Janković, B. Ž.. (2022). The effect of process parameters and catalyst support preparation methods on the catalytic efficiency in transesterification of sunflower oil over heterogeneous KI/Al2O3-based catalysts for biodiesel production. in Fuel, 315, 123246.
https://doi.org/10.1016/j.fuel.2022.123246

Marinković M, Waisi H, Blagojević S, Zarubica AR, Ljupković R, Krstić A, Janković BŽ. The effect of process parameters and catalyst support preparation methods on the catalytic efficiency in transesterification of sunflower oil over heterogeneous KI/Al2O3-based catalysts for biodiesel production. in Fuel. 2022;315:123246.
doi:10.1016/j.fuel.2022.123246 .

Marinković, Miloš, Waisi, Hadi, Blagojević, Stevan, Zarubica, Aleksandra R., Ljupković, Radomir, Krstić, Aleksandra, Janković, Bojan Ž., "The effect of process parameters and catalyst support preparation methods on the catalytic efficiency in transesterification of sunflower oil over heterogeneous KI/Al2O3-based catalysts for biodiesel production" in Fuel, 315 (2022):123246,
https://doi.org/10.1016/j.fuel.2022.123246 . .

TY  - JOUR
AU  - Marinković, Miloš
AU  - Waisi, Hadi
AU  - Blagojević, Stevan
AU  - Zarubica, Aleksandra R.
AU  - Ljupković, Radomir
AU  - Krstić, Aleksandra
AU  - Janković, Bojan Ž.
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10192
AB  - The authors regret to inform about an error in the affiliation of the corresponding author in the published version of this article. The correct affiliation of Dr. Bojan Janković should be: University of Belgrade, Department of Physical Chemistry, “Vinča” Institute of Nuclear Sciences – National Institute of the Republic of Serbia, Mike Petrovića Alasa 12–14, P.O. Box 522, 11001 Belgrade, Serbia. The authors would like to apologise for any inconvenience caused.
T2  - Fuel
T1  - Corrigendum to “The effect of process parameters and catalyst support preparation methods on the catalytic efficiency in transesterification of sunflower oil over heterogeneous KI/Al2O3-based catalysts for biodiesel production” [Fuel 315 (2022) 123246]
VL  - 318
SP  - 123677
DO  - 10.1016/j.fuel.2022.123677
ER  - 

@article{
author = "Marinković, Miloš and Waisi, Hadi and Blagojević, Stevan and Zarubica, Aleksandra R. and Ljupković, Radomir and Krstić, Aleksandra and Janković, Bojan Ž.",
year = "2022",
abstract = "The authors regret to inform about an error in the affiliation of the corresponding author in the published version of this article. The correct affiliation of Dr. Bojan Janković should be: University of Belgrade, Department of Physical Chemistry, “Vinča” Institute of Nuclear Sciences – National Institute of the Republic of Serbia, Mike Petrovića Alasa 12–14, P.O. Box 522, 11001 Belgrade, Serbia. The authors would like to apologise for any inconvenience caused.",
journal = "Fuel",
title = "Corrigendum to “The effect of process parameters and catalyst support preparation methods on the catalytic efficiency in transesterification of sunflower oil over heterogeneous KI/Al2O3-based catalysts for biodiesel production” [Fuel 315 (2022) 123246]",
volume = "318",
pages = "123677",
doi = "10.1016/j.fuel.2022.123677"
}

Marinković, M., Waisi, H., Blagojević, S., Zarubica, A. R., Ljupković, R., Krstić, A.,& Janković, B. Ž.. (2022). Corrigendum to “The effect of process parameters and catalyst support preparation methods on the catalytic efficiency in transesterification of sunflower oil over heterogeneous KI/Al2O3-based catalysts for biodiesel production” [Fuel 315 (2022) 123246]. in Fuel, 318, 123677.
https://doi.org/10.1016/j.fuel.2022.123677

Marinković M, Waisi H, Blagojević S, Zarubica AR, Ljupković R, Krstić A, Janković BŽ. Corrigendum to “The effect of process parameters and catalyst support preparation methods on the catalytic efficiency in transesterification of sunflower oil over heterogeneous KI/Al2O3-based catalysts for biodiesel production” [Fuel 315 (2022) 123246]. in Fuel. 2022;318:123677.
doi:10.1016/j.fuel.2022.123677 .

Marinković, Miloš, Waisi, Hadi, Blagojević, Stevan, Zarubica, Aleksandra R., Ljupković, Radomir, Krstić, Aleksandra, Janković, Bojan Ž., "Corrigendum to “The effect of process parameters and catalyst support preparation methods on the catalytic efficiency in transesterification of sunflower oil over heterogeneous KI/Al2O3-based catalysts for biodiesel production” [Fuel 315 (2022) 123246]" in Fuel, 318 (2022):123677,
https://doi.org/10.1016/j.fuel.2022.123677 . .

TY  - JOUR
AU  - Stepić, Katarina
AU  - Ljupković, Radomir
AU  - Zarubica, Aleksandra R.
AU  - Đorđijevski, Stefan
AU  - Matović, Branko
AU  - Krstić, Jugoslav B.
AU  - Bojić, Aleksandar
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10361
AB  - In this research composite based on zirconia and graphite was synthesized using the sol-gel method. Aim of this research is to activate and increase the photocatalytic activity of ZrO2 by combining with graphite-based material. Our results show that we obtained material that can remove both cationic and anionic dyes by sorption and photocatalytic processes. Obtained composite is very effective in sorption of RB19 with up to 100% removal. Photocatalytic activity of composite is higher than pristine GO and goes up to 100% for RB19 degradation and about 50% degradation of MB. These results are promising and present an excellent base for further research. © 2022, Universitatea Babes-Bolyai, Catedra de Filosofie Sistematica. All rights reserved.
T2  - Studia Universitatis Babes-Bolyai Chemia
T1  - Novel composite based on zirconia and graphite. First results of application for synthetic dyes removal
VL  - 67
IS  - 2
SP  - 23
EP  - 43
DO  - 10.24193/subbchem.2022.2.02
ER  - 

@article{
author = "Stepić, Katarina and Ljupković, Radomir and Zarubica, Aleksandra R. and Đorđijevski, Stefan and Matović, Branko and Krstić, Jugoslav B. and Bojić, Aleksandar",
year = "2022",
abstract = "In this research composite based on zirconia and graphite was synthesized using the sol-gel method. Aim of this research is to activate and increase the photocatalytic activity of ZrO2 by combining with graphite-based material. Our results show that we obtained material that can remove both cationic and anionic dyes by sorption and photocatalytic processes. Obtained composite is very effective in sorption of RB19 with up to 100% removal. Photocatalytic activity of composite is higher than pristine GO and goes up to 100% for RB19 degradation and about 50% degradation of MB. These results are promising and present an excellent base for further research. © 2022, Universitatea Babes-Bolyai, Catedra de Filosofie Sistematica. All rights reserved.",
journal = "Studia Universitatis Babes-Bolyai Chemia",
title = "Novel composite based on zirconia and graphite. First results of application for synthetic dyes removal",
volume = "67",
number = "2",
pages = "23-43",
doi = "10.24193/subbchem.2022.2.02"
}

Stepić, K., Ljupković, R., Zarubica, A. R., Đorđijevski, S., Matović, B., Krstić, J. B.,& Bojić, A.. (2022). Novel composite based on zirconia and graphite. First results of application for synthetic dyes removal. in Studia Universitatis Babes-Bolyai Chemia, 67(2), 23-43.
https://doi.org/10.24193/subbchem.2022.2.02

Stepić K, Ljupković R, Zarubica AR, Đorđijevski S, Matović B, Krstić JB, Bojić A. Novel composite based on zirconia and graphite. First results of application for synthetic dyes removal. in Studia Universitatis Babes-Bolyai Chemia. 2022;67(2):23-43.
doi:10.24193/subbchem.2022.2.02 .

Stepić, Katarina, Ljupković, Radomir, Zarubica, Aleksandra R., Đorđijevski, Stefan, Matović, Branko, Krstić, Jugoslav B., Bojić, Aleksandar, "Novel composite based on zirconia and graphite. First results of application for synthetic dyes removal" in Studia Universitatis Babes-Bolyai Chemia, 67, no. 2 (2022):23-43,
https://doi.org/10.24193/subbchem.2022.2.02 . .

TY  - JOUR
AU  - Zarubica, Aleksandra R.
AU  - Krstić, Jugoslav B.
AU  - Popović, Dejan
AU  - Krstić, Aleksandra
AU  - Ljupković, Radomir
AU  - Ranđelović, Marjan S.
AU  - Matović, Branko
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9900
AB  - In this paper, NiZnCo ferrite was produced by solid state synthesis, calcination at 1000 °C and sintering at 1250 °C in air atmosphere. The microstructure and phases of the sintered sample were analysed by scanning electron microscopy and X-ray diffraction, respectively. The magnetic properties of the ferrite were evaluated by magnetization and magnetostriction measurements. The complex magnetic permeability and complex permittivity were also measured between 1 MHz-12 GHz and the reflection loss (RL) was calculated in the 100 MHz-12 GHz frequency range. The results show that the ferrite sample presents magnetostrictive behaviour and a saturation magnetization of 71 Am2/kg. Complex permittivity measurements indicate that the material has dielectric behaviour in the whole frequency range studied, with ε′ varying between 7-40, and magnetic behaviour in frequencies between 1 MHz-5 GHz. The minimum RL was found at frequencies between 2.4-3.3 GHz and the calculated RL value for a thickness of 3 mm was lower than −10 dB in frequencies between 2.3-7.3 GHz. These results indicate potential application as microwave absorber in the S band.
T2  - Processing and Application of Ceramics
T1  - Electromagnetic characterization of Ni0.5Zn0.3Co0.2Fe2O4 bulk ceramics in the 1 MHz-12 GHz frequency range
VL  - 15
IS  - 2
SP  - 136
DO  - 10.2298/PAC2102111Z
ER  - 

@article{
author = "Zarubica, Aleksandra R. and Krstić, Jugoslav B. and Popović, Dejan and Krstić, Aleksandra and Ljupković, Radomir and Ranđelović, Marjan S. and Matović, Branko",
year = "2021",
abstract = "In this paper, NiZnCo ferrite was produced by solid state synthesis, calcination at 1000 °C and sintering at 1250 °C in air atmosphere. The microstructure and phases of the sintered sample were analysed by scanning electron microscopy and X-ray diffraction, respectively. The magnetic properties of the ferrite were evaluated by magnetization and magnetostriction measurements. The complex magnetic permeability and complex permittivity were also measured between 1 MHz-12 GHz and the reflection loss (RL) was calculated in the 100 MHz-12 GHz frequency range. The results show that the ferrite sample presents magnetostrictive behaviour and a saturation magnetization of 71 Am2/kg. Complex permittivity measurements indicate that the material has dielectric behaviour in the whole frequency range studied, with ε′ varying between 7-40, and magnetic behaviour in frequencies between 1 MHz-5 GHz. The minimum RL was found at frequencies between 2.4-3.3 GHz and the calculated RL value for a thickness of 3 mm was lower than −10 dB in frequencies between 2.3-7.3 GHz. These results indicate potential application as microwave absorber in the S band.",
journal = "Processing and Application of Ceramics",
title = "Electromagnetic characterization of Ni0.5Zn0.3Co0.2Fe2O4 bulk ceramics in the 1 MHz-12 GHz frequency range",
volume = "15",
number = "2",
pages = "136",
doi = "10.2298/PAC2102111Z"
}

Zarubica, A. R., Krstić, J. B., Popović, D., Krstić, A., Ljupković, R., Ranđelović, M. S.,& Matović, B.. (2021). Electromagnetic characterization of Ni0.5Zn0.3Co0.2Fe2O4 bulk ceramics in the 1 MHz-12 GHz frequency range. in Processing and Application of Ceramics, 15(2), 136.
https://doi.org/10.2298/PAC2102111Z

Zarubica AR, Krstić JB, Popović D, Krstić A, Ljupković R, Ranđelović MS, Matović B. Electromagnetic characterization of Ni0.5Zn0.3Co0.2Fe2O4 bulk ceramics in the 1 MHz-12 GHz frequency range. in Processing and Application of Ceramics. 2021;15(2):136.
doi:10.2298/PAC2102111Z .

Zarubica, Aleksandra R., Krstić, Jugoslav B., Popović, Dejan, Krstić, Aleksandra, Ljupković, Radomir, Ranđelović, Marjan S., Matović, Branko, "Electromagnetic characterization of Ni0.5Zn0.3Co0.2Fe2O4 bulk ceramics in the 1 MHz-12 GHz frequency range" in Processing and Application of Ceramics, 15, no. 2 (2021):136,
https://doi.org/10.2298/PAC2102111Z . .

TY  - JOUR
AU  - Zarubica, Aleksandra R.
AU  - Ljupković, Radomir
AU  - Papan, Jelena
AU  - Vukoje, Ivana D.
AU  - Porobić, Slavica
AU  - Ahrenkiel, Scott Phillip
AU  - Nedeljković, Jovan
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9003
AB  - A visible-light-responsive hybrid material was prepared by surface-modification of γ-Al2O3, an insulator with a bandgap of about 8.7 eV, with 5-aminosalicylic acid (5-ASA), leading to the formation of an interfacial charge transfer (ICT) complex. The microstructural characterization of pristine γ-Al2O3 includes X-ray diffraction analysis, transmission electron microscopy, and nitrogen adsorption-desorption isotherms. The pristine γ-Al2O3 powder consists of agglomerated rod-like nanoparticles ((2-3) × (15-20) nm, diameter × length) with the large specific surface area (~420 m2/g). An enormous absorption red-shift is observed upon the formation of the ICT complex. The absorption onset of the inorganic-organic hybrid was found to be at 730 nm by diffuse reflection spectroscopy. The photocatalytic performance of prepared samples was thoroughly tested using the decolorization of the organic dye crystal violet (CV) under illumination in different spectral regions and different light intensities. Excitation with UV light leads to complete decolorization of CV, while the degradation kinetics are impeded when a visible light source is used. Also, the increase of UV light intensity induced significantly faster degradation kinetics of CV, while the degradation rates of CV are quite insensitive to the increase of visible light intensity.
T2  - Optical Materials
T1  - Visible-light-responsive Al2O3 powder: Photocatalytic study
VL  - 106
SP  - 110013
DO  - 10.1016/j.optmat.2020.110013
ER  - 

@article{
author = "Zarubica, Aleksandra R. and Ljupković, Radomir and Papan, Jelena and Vukoje, Ivana D. and Porobić, Slavica and Ahrenkiel, Scott Phillip and Nedeljković, Jovan",
year = "2020",
abstract = "A visible-light-responsive hybrid material was prepared by surface-modification of γ-Al2O3, an insulator with a bandgap of about 8.7 eV, with 5-aminosalicylic acid (5-ASA), leading to the formation of an interfacial charge transfer (ICT) complex. The microstructural characterization of pristine γ-Al2O3 includes X-ray diffraction analysis, transmission electron microscopy, and nitrogen adsorption-desorption isotherms. The pristine γ-Al2O3 powder consists of agglomerated rod-like nanoparticles ((2-3) × (15-20) nm, diameter × length) with the large specific surface area (~420 m2/g). An enormous absorption red-shift is observed upon the formation of the ICT complex. The absorption onset of the inorganic-organic hybrid was found to be at 730 nm by diffuse reflection spectroscopy. The photocatalytic performance of prepared samples was thoroughly tested using the decolorization of the organic dye crystal violet (CV) under illumination in different spectral regions and different light intensities. Excitation with UV light leads to complete decolorization of CV, while the degradation kinetics are impeded when a visible light source is used. Also, the increase of UV light intensity induced significantly faster degradation kinetics of CV, while the degradation rates of CV are quite insensitive to the increase of visible light intensity.",
journal = "Optical Materials",
title = "Visible-light-responsive Al2O3 powder: Photocatalytic study",
volume = "106",
pages = "110013",
doi = "10.1016/j.optmat.2020.110013"
}

Zarubica, A. R., Ljupković, R., Papan, J., Vukoje, I. D., Porobić, S., Ahrenkiel, S. P.,& Nedeljković, J.. (2020). Visible-light-responsive Al2O3 powder: Photocatalytic study. in Optical Materials, 106, 110013.
https://doi.org/10.1016/j.optmat.2020.110013

Zarubica AR, Ljupković R, Papan J, Vukoje ID, Porobić S, Ahrenkiel SP, Nedeljković J. Visible-light-responsive Al2O3 powder: Photocatalytic study. in Optical Materials. 2020;106:110013.
doi:10.1016/j.optmat.2020.110013 .

Zarubica, Aleksandra R., Ljupković, Radomir, Papan, Jelena, Vukoje, Ivana D., Porobić, Slavica, Ahrenkiel, Scott Phillip, Nedeljković, Jovan, "Visible-light-responsive Al2O3 powder: Photocatalytic study" in Optical Materials, 106 (2020):110013,
https://doi.org/10.1016/j.optmat.2020.110013 . .