Zarubica, Aleksandra R.

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5007b99a-d03a-4ac9-bab6-fa43293866af
  • Zarubica, Aleksandra R. (25)
  • Zarubica, Aleksandra (1)

Author's Bibliography

Visible-light-responsive Al2O3 powder: Photocatalytic study

Zarubica, Aleksandra; Ljupković, Radomir; Papan, Jelena; Vukoje, Ivana D.; Porobić, Slavica; Ahrenkiel, Scott Phillip; Nedeljković, Jovan

(2020)

TY  - JOUR
AU  - Zarubica, Aleksandra
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 and Ljupković, Radomir and Papan, Jelena and Vukoje, Ivana D. and Porobić, Slavica and Ahrenkiel, Scott Phillip and Nedeljković, Jovan",
year = "2020",
url = "https://vinar.vin.bg.ac.rs/handle/123456789/9003",
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., Ljupković, R., Papan, J., Vukoje, I. D., Porobić, S., Ahrenkiel, S. P.,& Nedeljković, J. (2020). Visible-light-responsive Al2O3 powder: Photocatalytic study.
Optical Materials, 106, 110013.
https://doi.org/10.1016/j.optmat.2020.110013
Zarubica A, Ljupković R, Papan J, Vukoje ID, Porobić S, Ahrenkiel SP, Nedeljković J. Visible-light-responsive Al2O3 powder: Photocatalytic study. Optical Materials. 2020;106:110013
Zarubica Aleksandra, Ljupković Radomir, Papan Jelena, Vukoje Ivana D., Porobić Slavica, Ahrenkiel Scott Phillip, Nedeljković Jovan, "Visible-light-responsive Al2O3 powder: Photocatalytic study" Optical Materials, 106 (2020):110013,
https://doi.org/10.1016/j.optmat.2020.110013 .
1
1

Multiwalled carbon nanotubes modified with MoO2 nanoparticles for voltammetric determination of the pesticide oxyfluorfen

Milićević, Jelena S.; Ranđelović, Marjan S.; Momčilović, Milan Z.; Zarubica, Aleksandra R.; Mofarah, Sajjad S.; Matović, Branko; Sorrel, Charles C.

(2020)

TY  - JOUR
AU  - Milićević, Jelena S.
AU  - Ranđelović, Marjan S.
AU  - Momčilović, Milan Z.
AU  - Zarubica, Aleksandra R.
AU  - Mofarah, Sajjad S.
AU  - Matović, Branko
AU  - Sorrel, Charles C.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9068
AB  - A glassy carbon electrode was functionalized by MoO2 nanoparticle–decorated multiwalled carbon nanotubes (MWCNTs) and examined as a working electrode in oxyfluorfen (OXY) detection by differential pulse stripping voltammetry (DPSV). Measurement parameters were as follows: initial potential − 0.1 V, end potential + 0.5 V, accumulation potential − 0.15 V, accumulation time 80 s, and scan rate 50 mV s−1. A stripping potential of + 0.315 V vs. Ag/AgCl was employed. The pPesticide oxyfluorfen was determined in model samples by DPSV with good reproducibility (RSD <2.4%) in the concentration range 2.5 to 34.5 ng mL−1, with r = 0.99 and a limit of detection of 1.5 ng mL−1. These results are in the same range as those of HPLC/DAD, which is used as the comparative method. Recovery for OXY determination in a real river water sample was 102%. Analyses in Briton-Robinson buffer has shown to be pH dependent with the best response at pH 6.0. Structural characterization of MoO2-MWCNT by Raman spectroscopy, field emission scanning electron microscopy, high-resolution transmission electron microscopy, and X-ray crystallography revealed a preserved MWCNT structure decorated with firmly attached clusters of MoO2 nanoparticles.
T2  - Microchimica Acta
T1  - Multiwalled carbon nanotubes modified with MoO2 nanoparticles for voltammetric determination of the pesticide oxyfluorfen
VL  - 187
IS  - 8
SP  - 429
DO  - 10.1007/s00604-020-04406-4
ER  - 
@article{
author = "Milićević, Jelena S. and Ranđelović, Marjan S. and Momčilović, Milan Z. and Zarubica, Aleksandra R. and Mofarah, Sajjad S. and Matović, Branko and Sorrel, Charles C.",
year = "2020",
url = "https://vinar.vin.bg.ac.rs/handle/123456789/9068",
abstract = "A glassy carbon electrode was functionalized by MoO2 nanoparticle–decorated multiwalled carbon nanotubes (MWCNTs) and examined as a working electrode in oxyfluorfen (OXY) detection by differential pulse stripping voltammetry (DPSV). Measurement parameters were as follows: initial potential − 0.1 V, end potential + 0.5 V, accumulation potential − 0.15 V, accumulation time 80 s, and scan rate 50 mV s−1. A stripping potential of + 0.315 V vs. Ag/AgCl was employed. The pPesticide oxyfluorfen was determined in model samples by DPSV with good reproducibility (RSD <2.4%) in the concentration range 2.5 to 34.5 ng mL−1, with r = 0.99 and a limit of detection of 1.5 ng mL−1. These results are in the same range as those of HPLC/DAD, which is used as the comparative method. Recovery for OXY determination in a real river water sample was 102%. Analyses in Briton-Robinson buffer has shown to be pH dependent with the best response at pH 6.0. Structural characterization of MoO2-MWCNT by Raman spectroscopy, field emission scanning electron microscopy, high-resolution transmission electron microscopy, and X-ray crystallography revealed a preserved MWCNT structure decorated with firmly attached clusters of MoO2 nanoparticles.",
journal = "Microchimica Acta",
title = "Multiwalled carbon nanotubes modified with MoO2 nanoparticles for voltammetric determination of the pesticide oxyfluorfen",
volume = "187",
number = "8",
pages = "429",
doi = "10.1007/s00604-020-04406-4"
}
Milićević, J. S., Ranđelović, M. S., Momčilović, M. Z., Zarubica, A. R., Mofarah, S. S., Matović, B.,& Sorrel, C. C. (2020). Multiwalled carbon nanotubes modified with MoO2 nanoparticles for voltammetric determination of the pesticide oxyfluorfen.
Microchimica Acta, 187(8), 429.
https://doi.org/10.1007/s00604-020-04406-4
Milićević JS, Ranđelović MS, Momčilović MZ, Zarubica AR, Mofarah SS, Matović B, Sorrel CC. Multiwalled carbon nanotubes modified with MoO2 nanoparticles for voltammetric determination of the pesticide oxyfluorfen. Microchimica Acta. 2020;187(8):429
Milićević Jelena S., Ranđelović Marjan S., Momčilović Milan Z., Zarubica Aleksandra R., Mofarah Sajjad S., Matović Branko, Sorrel Charles C., "Multiwalled carbon nanotubes modified with MoO2 nanoparticles for voltammetric determination of the pesticide oxyfluorfen" Microchimica Acta, 187, no. 8 (2020):429,
https://doi.org/10.1007/s00604-020-04406-4 .

Synthesis, Calcination and Characterization of CoMoO4 Nanopowders by GNP Method

Rosić, Milena; Zagorac, Dejan; Čebela, Maria; Jordanov, Dragana; Zagorac, Jelena B.; Luković, Jelena; Zarubica, Aleksandra R.; Matović, Branko

(Belgrade : Serbian Academy of Sciences and Arts, 2018)

TY  - CONF
AU  - Rosić, Milena
AU  - Zagorac, Dejan
AU  - Čebela, Maria
AU  - Jordanov, Dragana
AU  - Zagorac, Jelena B.
AU  - Luković, Jelena
AU  - Zarubica, Aleksandra R.
AU  - Matović, Branko
PY  - 2018
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8738
PB  - Belgrade : Serbian Academy of Sciences and Arts
C3  - Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructures ELMINA 2018, August 27-29, 2018, Belgrade, Serbia
T1  - Synthesis, Calcination and Characterization of CoMoO4 Nanopowders by GNP Method
SP  - 192
EP  - 194
ER  - 
@conference{
author = "Rosić, Milena and Zagorac, Dejan and Čebela, Maria and Jordanov, Dragana and Zagorac, Jelena B. and Luković, Jelena and Zarubica, Aleksandra R. and Matović, Branko",
year = "2018",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/8738",
publisher = "Belgrade : Serbian Academy of Sciences and Arts",
journal = "Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructures ELMINA 2018, August 27-29, 2018, Belgrade, Serbia",
title = "Synthesis, Calcination and Characterization of CoMoO4 Nanopowders by GNP Method",
pages = "192-194"
}
Rosić, M., Zagorac, D., Čebela, M., Jordanov, D., Zagorac, J. B., Luković, J., Zarubica, A. R.,& Matović, B. (2018). Synthesis, Calcination and Characterization of CoMoO4 Nanopowders by GNP Method.
Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructures ELMINA 2018, August 27-29, 2018, Belgrade, Serbia
Belgrade : Serbian Academy of Sciences and Arts., 192-194.
Rosić M, Zagorac D, Čebela M, Jordanov D, Zagorac JB, Luković J, Zarubica AR, Matović B. Synthesis, Calcination and Characterization of CoMoO4 Nanopowders by GNP Method. Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructures ELMINA 2018, August 27-29, 2018, Belgrade, Serbia. 2018;:192-194
Rosić Milena, Zagorac Dejan, Čebela Maria, Jordanov Dragana, Zagorac Jelena B., Luković Jelena, Zarubica Aleksandra R., Matović Branko, "Synthesis, Calcination and Characterization of CoMoO4 Nanopowders by GNP Method" Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructures ELMINA 2018, August 27-29, 2018, Belgrade, Serbia (2018):192-194

Spider silk as a template for obtaining magnesium oxide and magnesium hydroxide fibers

Dmitrović, Svetlana; Prekajski-Đorđević, Marija D.; Jokić, Bojan M.; Branković, Goran O.; Zarubica, Aleksandra R.; Žikić, Vladimir; Matović, Branko

(2018)

TY  - JOUR
AU  - Dmitrović, Svetlana
AU  - Prekajski-Đorđević, Marija D.
AU  - Jokić, Bojan M.
AU  - Branković, Goran O.
AU  - Zarubica, Aleksandra R.
AU  - Žikić, Vladimir
AU  - Matović, Branko
PY  - 2018
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/7616
AB  - Spider silk fibers, collected from Pholcus Phalangioides spider were used as a template for obtaining magnesium oxide (MgO, periclase) as well as magnesium hydroxide (Mg(OH)2, brucite) fibers. Magnesium oxide fibers were obtained in a simple manner by heat induced decomposition of magnesium salt (MgCl2) in the presence of the spider silk fibers, while magnesium hydroxidefibers were synthesized by hydration of MgO fibers at 50 °C, 70°C and 90 °C, for 48 and 96 h. According to Scanning electron microscopy (SEM), dimensions of spider silk fibers determined the dimension of synthesized MgO fibers, while for Mg(OH)2 fibers, the average diameter was increased with prolonging the hydration period. The surface of Mg(OH)2 fibers was noticed to be covered with brucite in a form of plates. X-ray diffraction (XRD) analysis showed that MgO fibers were single-phased (the pure magnesium oxide fibers were obtained), while Mg(OH)2 fibers were two- or single-phased brucite depending on incubation period, and/or incubation temperature.
AB  - Vlakna paukove mreže sakupljena od Pholcus phalangioides pauka korišćena su kao matrica za dobijanje vlakana magnezijum oksida (MgO, periklas) i magnezijum-hidroksida (Mg(OH)2, brucit). Vlakna magnezijum oksida jednostavno su dobijena termičkim razlaganjem soli magnezijuma (MgCl2) u prisustvu vlakana paukove mreže, dok su vlakna magnezijum hidroksida sintetisana hidratacijom MgO vlakana na temperaturama: 50, 70 i 90 °C u trajanju od 48 i 96 h. Na osnovu
rezultata skenirajuće elektronske mikroskopije (SEM), veličina sintetisanih MgO vlakana bila je određena dimenzijama vlakana pauka, dok je za Mg(OH)2 vlakna prosečan dijametar rastao sa produženjem perioda hidratacije. Na površini Mg(OH)2 vlakana uočeni su tabličasti kristali brucita. Difrakcija X zraka (XRD) pokazala je da su vlakna periklasa jednofazna (dobijen je čist magnezijum-oksid), dok su brucitna vlakna bila dvofazna ili jednofazna, u zavisnosti od inkubacionog perioda i/ili teperature na kojoj je vršena inkubacija.
T2  - Hemijska industrija
T1  - Spider silk as a template for obtaining magnesium oxide and magnesium hydroxide fibers
T1  - Sinteza vlakana magnezijum-oksida i magnezijum-hidroksida korišćenjem paukove mreže kao matrice
VL  - 72
IS  - 1
SP  - 23
EP  - 28
DO  - 10.2298/HEMIND170404018D
ER  - 
@article{
author = "Dmitrović, Svetlana and Prekajski-Đorđević, Marija D. and Jokić, Bojan M. and Branković, Goran O. and Zarubica, Aleksandra R. and Žikić, Vladimir and Matović, Branko",
year = "2018",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/7616",
abstract = "Spider silk fibers, collected from Pholcus Phalangioides spider were used as a template for obtaining magnesium oxide (MgO, periclase) as well as magnesium hydroxide (Mg(OH)2, brucite) fibers. Magnesium oxide fibers were obtained in a simple manner by heat induced decomposition of magnesium salt (MgCl2) in the presence of the spider silk fibers, while magnesium hydroxidefibers were synthesized by hydration of MgO fibers at 50 °C, 70°C and 90 °C, for 48 and 96 h. According to Scanning electron microscopy (SEM), dimensions of spider silk fibers determined the dimension of synthesized MgO fibers, while for Mg(OH)2 fibers, the average diameter was increased with prolonging the hydration period. The surface of Mg(OH)2 fibers was noticed to be covered with brucite in a form of plates. X-ray diffraction (XRD) analysis showed that MgO fibers were single-phased (the pure magnesium oxide fibers were obtained), while Mg(OH)2 fibers were two- or single-phased brucite depending on incubation period, and/or incubation temperature., Vlakna paukove mreže sakupljena od Pholcus phalangioides pauka korišćena su kao matrica za dobijanje vlakana magnezijum oksida (MgO, periklas) i magnezijum-hidroksida (Mg(OH)2, brucit). Vlakna magnezijum oksida jednostavno su dobijena termičkim razlaganjem soli magnezijuma (MgCl2) u prisustvu vlakana paukove mreže, dok su vlakna magnezijum hidroksida sintetisana hidratacijom MgO vlakana na temperaturama: 50, 70 i 90 °C u trajanju od 48 i 96 h. Na osnovu
rezultata skenirajuće elektronske mikroskopije (SEM), veličina sintetisanih MgO vlakana bila je određena dimenzijama vlakana pauka, dok je za Mg(OH)2 vlakna prosečan dijametar rastao sa produženjem perioda hidratacije. Na površini Mg(OH)2 vlakana uočeni su tabličasti kristali brucita. Difrakcija X zraka (XRD) pokazala je da su vlakna periklasa jednofazna (dobijen je čist magnezijum-oksid), dok su brucitna vlakna bila dvofazna ili jednofazna, u zavisnosti od inkubacionog perioda i/ili teperature na kojoj je vršena inkubacija.",
journal = "Hemijska industrija",
title = "Spider silk as a template for obtaining magnesium oxide and magnesium hydroxide fibers, Sinteza vlakana magnezijum-oksida i magnezijum-hidroksida korišćenjem paukove mreže kao matrice",
volume = "72",
number = "1",
pages = "23-28",
doi = "10.2298/HEMIND170404018D"
}
Dmitrović, S., Prekajski-Đorđević, M. D., Jokić, B. M., Branković, G. O., Zarubica, A. R., Žikić, V.,& Matović, B. (2018). Sinteza vlakana magnezijum-oksida i magnezijum-hidroksida korišćenjem paukove mreže kao matrice.
Hemijska industrija, 72(1), 23-28.
https://doi.org/10.2298/HEMIND170404018D
Dmitrović S, Prekajski-Đorđević MD, Jokić BM, Branković GO, Zarubica AR, Žikić V, Matović B. Sinteza vlakana magnezijum-oksida i magnezijum-hidroksida korišćenjem paukove mreže kao matrice. Hemijska industrija. 2018;72(1):23-28
Dmitrović Svetlana, Prekajski-Đorđević Marija D., Jokić Bojan M., Branković Goran O., Zarubica Aleksandra R., Žikić Vladimir, Matović Branko, "Sinteza vlakana magnezijum-oksida i magnezijum-hidroksida korišćenjem paukove mreže kao matrice" Hemijska industrija, 72, no. 1 (2018):23-28,
https://doi.org/10.2298/HEMIND170404018D .

Structural and photocatalytic examination of CoMoO4 nanopowders synthesized by GNP method

Rosić, Milena; Zarubica, Aleksandra R.; Šaponjić, Aleksandra; Babić, Biljana M.; Zagorac, Jelena B.; Jordanov, Dragana; Matović, Branko

(2018)

TY  - JOUR
AU  - Rosić, Milena
AU  - Zarubica, Aleksandra R.
AU  - Šaponjić, Aleksandra
AU  - Babić, Biljana M.
AU  - Zagorac, Jelena B.
AU  - Jordanov, Dragana
AU  - Matović, Branko
PY  - 2018
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1876
AB  - The synthesis route by solution combustion, a glycine nitrate procedure (GNP) of CoMoO4 nanopowders by a glycine as a fuel and as a complexant was examined concerning the photocatalytic aspects and powder characteristics. The synthesized samples were investigated by differential thermal analysis (DTA), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), Field emission scanning electron microscopy (FESEM), Ultraviolet-Visible (UV/Vis) spectroscopy and nitrogen adsorption method. In this work, we presented a simple and effective method for controlling the composition and morphology of CoMoO4. A single-phase a and 13 crystalline form of CoMoO4 compound was confirmed by X-ray diffraction (XRD). The photocatalytic activity of CoMoO4 nanopowders was estimated by the photocatalytic degradation of crystal violet in aqueous solution. In addition, the obtained specific CoMoO4 nanopowder demonstrated acceptable specific surface area, which can be of particular importance for the photocatalytic processes.
T2  - Materials Research Bulletin
T1  - Structural and photocatalytic examination of CoMoO4 nanopowders synthesized by GNP method
VL  - 98
SP  - 111
EP  - 120
DO  - 10.1016/j.materresbull.2017.10.015
ER  - 
@article{
author = "Rosić, Milena and Zarubica, Aleksandra R. and Šaponjić, Aleksandra and Babić, Biljana M. and Zagorac, Jelena B. and Jordanov, Dragana and Matović, Branko",
year = "2018",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1876",
abstract = "The synthesis route by solution combustion, a glycine nitrate procedure (GNP) of CoMoO4 nanopowders by a glycine as a fuel and as a complexant was examined concerning the photocatalytic aspects and powder characteristics. The synthesized samples were investigated by differential thermal analysis (DTA), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), Field emission scanning electron microscopy (FESEM), Ultraviolet-Visible (UV/Vis) spectroscopy and nitrogen adsorption method. In this work, we presented a simple and effective method for controlling the composition and morphology of CoMoO4. A single-phase a and 13 crystalline form of CoMoO4 compound was confirmed by X-ray diffraction (XRD). The photocatalytic activity of CoMoO4 nanopowders was estimated by the photocatalytic degradation of crystal violet in aqueous solution. In addition, the obtained specific CoMoO4 nanopowder demonstrated acceptable specific surface area, which can be of particular importance for the photocatalytic processes.",
journal = "Materials Research Bulletin",
title = "Structural and photocatalytic examination of CoMoO4 nanopowders synthesized by GNP method",
volume = "98",
pages = "111-120",
doi = "10.1016/j.materresbull.2017.10.015"
}
Rosić, M., Zarubica, A. R., Šaponjić, A., Babić, B. M., Zagorac, J. B., Jordanov, D.,& Matović, B. (2018). Structural and photocatalytic examination of CoMoO4 nanopowders synthesized by GNP method.
Materials Research Bulletin, 98, 111-120.
https://doi.org/10.1016/j.materresbull.2017.10.015
Rosić M, Zarubica AR, Šaponjić A, Babić BM, Zagorac JB, Jordanov D, Matović B. Structural and photocatalytic examination of CoMoO4 nanopowders synthesized by GNP method. Materials Research Bulletin. 2018;98:111-120
Rosić Milena, Zarubica Aleksandra R., Šaponjić Aleksandra, Babić Biljana M., Zagorac Jelena B., Jordanov Dragana, Matović Branko, "Structural and photocatalytic examination of CoMoO4 nanopowders synthesized by GNP method" Materials Research Bulletin, 98 (2018):111-120,
https://doi.org/10.1016/j.materresbull.2017.10.015 .
10
9
10

Exploring electrochemical and sorptive aspects of interaction between dissolved sulfides and novel Fe-enriched aluminosilicate composites

Ranđelović, Marjan S.; Momčilović, Milan Z.; Purenović, Jelena M.; Dornberg, Gregor; Barascu, Andrei; Enke, Dirk; Zarubica, Aleksandra R.

(2018)

TY  - JOUR
AU  - Ranđelović, Marjan S.
AU  - Momčilović, Milan Z.
AU  - Purenović, Jelena M.
AU  - Dornberg, Gregor
AU  - Barascu, Andrei
AU  - Enke, Dirk
AU  - Zarubica, Aleksandra R.
PY  - 2018
UR  - http://linkinghub.elsevier.com/retrieve/pii/S092777571830284X
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/7742
AB  - Three types of functional ceramic composites were designed, synthesized and probed for effective sulfide removal from aqueous solutions. The main goal was to examine complex influence of graphite, surpluses of Fe (similar to 4%) and micro-additions of Cu (similar to 0.2%) on the functional features of the composites. The structural, textural, morphological and surface characteristics of the composites were examined in detail by XRD, nitrogen sorption, SEM and FTIR. It has been shown that all composites are solid heterogeneous systems containing amorphous and crystalline phases (graphite, hematite, montmorillonite, quartz, etc.) with pronounced redox activity in contact with sulfide aqueous solutions. Great enhancment of sulfide consumption was detected for composites which contained graphite and it was established that reaction kinetics is fitted to irreversible second-order batch reaction with two reactants. After the treatment of 1 mM S2- solution, using composite dossage of 1 g/dm(3), concentration dropped down to 0.02 mM. In addition, cyclic voltammetry at 50 mV/s revealed the key role of dopants in electrochemical aspect of the process. Obvious boost of S2- uptake is ascribed to numerous electrochemical, chemical and sorption processes on the composite's developed surface.
T2  - Colloids and Surfaces A: Physicochemical and Engineering Aspects
T1  - Exploring electrochemical and sorptive aspects of interaction between dissolved sulfides and novel Fe-enriched aluminosilicate composites
VL  - 549
SP  - 196
EP  - 204
DO  - 10.1016/j.colsurfa.2018.04.014
ER  - 
@article{
author = "Ranđelović, Marjan S. and Momčilović, Milan Z. and Purenović, Jelena M. and Dornberg, Gregor and Barascu, Andrei and Enke, Dirk and Zarubica, Aleksandra R.",
year = "2018",
url = "http://linkinghub.elsevier.com/retrieve/pii/S092777571830284X, http://vinar.vin.bg.ac.rs/handle/123456789/7742",
abstract = "Three types of functional ceramic composites were designed, synthesized and probed for effective sulfide removal from aqueous solutions. The main goal was to examine complex influence of graphite, surpluses of Fe (similar to 4%) and micro-additions of Cu (similar to 0.2%) on the functional features of the composites. The structural, textural, morphological and surface characteristics of the composites were examined in detail by XRD, nitrogen sorption, SEM and FTIR. It has been shown that all composites are solid heterogeneous systems containing amorphous and crystalline phases (graphite, hematite, montmorillonite, quartz, etc.) with pronounced redox activity in contact with sulfide aqueous solutions. Great enhancment of sulfide consumption was detected for composites which contained graphite and it was established that reaction kinetics is fitted to irreversible second-order batch reaction with two reactants. After the treatment of 1 mM S2- solution, using composite dossage of 1 g/dm(3), concentration dropped down to 0.02 mM. In addition, cyclic voltammetry at 50 mV/s revealed the key role of dopants in electrochemical aspect of the process. Obvious boost of S2- uptake is ascribed to numerous electrochemical, chemical and sorption processes on the composite's developed surface.",
journal = "Colloids and Surfaces A: Physicochemical and Engineering Aspects",
title = "Exploring electrochemical and sorptive aspects of interaction between dissolved sulfides and novel Fe-enriched aluminosilicate composites",
volume = "549",
pages = "196-204",
doi = "10.1016/j.colsurfa.2018.04.014"
}
Ranđelović, M. S., Momčilović, M. Z., Purenović, J. M., Dornberg, G., Barascu, A., Enke, D.,& Zarubica, A. R. (2018). Exploring electrochemical and sorptive aspects of interaction between dissolved sulfides and novel Fe-enriched aluminosilicate composites.
Colloids and Surfaces A: Physicochemical and Engineering Aspects, 549, 196-204.
https://doi.org/10.1016/j.colsurfa.2018.04.014
Ranđelović MS, Momčilović MZ, Purenović JM, Dornberg G, Barascu A, Enke D, Zarubica AR. Exploring electrochemical and sorptive aspects of interaction between dissolved sulfides and novel Fe-enriched aluminosilicate composites. Colloids and Surfaces A: Physicochemical and Engineering Aspects. 2018;549:196-204
Ranđelović Marjan S., Momčilović Milan Z., Purenović Jelena M., Dornberg Gregor, Barascu Andrei, Enke Dirk, Zarubica Aleksandra R., "Exploring electrochemical and sorptive aspects of interaction between dissolved sulfides and novel Fe-enriched aluminosilicate composites" Colloids and Surfaces A: Physicochemical and Engineering Aspects, 549 (2018):196-204,
https://doi.org/10.1016/j.colsurfa.2018.04.014 .

Photoluminescent properties of spider silk coated with Eu-doped nanoceria

Dmitrović, Svetlana; Nikolic, Marko G.; Jelenkovic, Branislav; Prekajski, Marija D.; Rabasović, Mihailo D.; Zarubica, Aleksandra R.; Branković, Goran O.; Matović, Branko

(2017)

TY  - JOUR
AU  - Dmitrović, Svetlana
AU  - Nikolic, Marko G.
AU  - Jelenkovic, Branislav
AU  - Prekajski, Marija D.
AU  - Rabasović, Mihailo D.
AU  - Zarubica, Aleksandra R.
AU  - Branković, Goran O.
AU  - Matović, Branko
PY  - 2017
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1768
AB  - Spider dragline silk was coated with pure as well as Eu-doped ceria nanopowders at the room temperature. The treatment was done by immersion of the spider silkmesh into aqueous solutions of cerium nitrate (Ce(NO3)(3)) and ammonium hydroxide (NH4OH). Depending on the relationship between Ce3+ ion and ammonium hydroxide concentration, coated fibers exhibited a different thickness. Obtained materials were studied by means of FESEM. It was found that ceria nanoparticles of average size of 3 nm were coated along spider thread. X-ray diffraction (XRD) and selected-area electron diffraction (SAED) confirmed crystal nature of nanoparticle coating of spider silk. By using Williamson-Hall plots, crystallite size and strain were estimated. EDS measurement confirmed the presence of Eu in spider-Eu-doped ceria composite, and according to FTIR analysis, the interaction between CeO2 and spider silk was proposed. The morphology of obtained composite was observed by TEM. The photoluminescence emission spectra of spider silk coated with Eu-doped ceria were measured with two different excitations of 385 and 466 nm. The two-photon excited auto-fluorescence of spider silk coated with Eu-doped ceria was detected using a nonlinear laser scanning microscope. Obtained composite has a potential as a fluorescent labeling material in diverse applications.
T2  - Journal of Nanoparticle Research
T1  - Photoluminescent properties of spider silk coated with Eu-doped nanoceria
VL  - 19
IS  - 2
DO  - 10.1007/s11051-017-3750-9
ER  - 
@article{
author = "Dmitrović, Svetlana and Nikolic, Marko G. and Jelenkovic, Branislav and Prekajski, Marija D. and Rabasović, Mihailo D. and Zarubica, Aleksandra R. and Branković, Goran O. and Matović, Branko",
year = "2017",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1768",
abstract = "Spider dragline silk was coated with pure as well as Eu-doped ceria nanopowders at the room temperature. The treatment was done by immersion of the spider silkmesh into aqueous solutions of cerium nitrate (Ce(NO3)(3)) and ammonium hydroxide (NH4OH). Depending on the relationship between Ce3+ ion and ammonium hydroxide concentration, coated fibers exhibited a different thickness. Obtained materials were studied by means of FESEM. It was found that ceria nanoparticles of average size of 3 nm were coated along spider thread. X-ray diffraction (XRD) and selected-area electron diffraction (SAED) confirmed crystal nature of nanoparticle coating of spider silk. By using Williamson-Hall plots, crystallite size and strain were estimated. EDS measurement confirmed the presence of Eu in spider-Eu-doped ceria composite, and according to FTIR analysis, the interaction between CeO2 and spider silk was proposed. The morphology of obtained composite was observed by TEM. The photoluminescence emission spectra of spider silk coated with Eu-doped ceria were measured with two different excitations of 385 and 466 nm. The two-photon excited auto-fluorescence of spider silk coated with Eu-doped ceria was detected using a nonlinear laser scanning microscope. Obtained composite has a potential as a fluorescent labeling material in diverse applications.",
journal = "Journal of Nanoparticle Research",
title = "Photoluminescent properties of spider silk coated with Eu-doped nanoceria",
volume = "19",
number = "2",
doi = "10.1007/s11051-017-3750-9"
}
Dmitrović, S., Nikolic, M. G., Jelenkovic, B., Prekajski, M. D., Rabasović, M. D., Zarubica, A. R., Branković, G. O.,& Matović, B. (2017). Photoluminescent properties of spider silk coated with Eu-doped nanoceria.
Journal of Nanoparticle Research, 19(2).
https://doi.org/10.1007/s11051-017-3750-9
Dmitrović S, Nikolic MG, Jelenkovic B, Prekajski MD, Rabasović MD, Zarubica AR, Branković GO, Matović B. Photoluminescent properties of spider silk coated with Eu-doped nanoceria. Journal of Nanoparticle Research. 2017;19(2)
Dmitrović Svetlana, Nikolic Marko G., Jelenkovic Branislav, Prekajski Marija D., Rabasović Mihailo D., Zarubica Aleksandra R., Branković Goran O., Matović Branko, "Photoluminescent properties of spider silk coated with Eu-doped nanoceria" Journal of Nanoparticle Research, 19, no. 2 (2017),
https://doi.org/10.1007/s11051-017-3750-9 .
1
1
1

Decolorization of crystal violet over TiO2 and TiO2 doped with zirconia photocatalysts

Vasic, Marija B.; Ranđelović, Marjan S.; Mitrović, Jelena Z.; Stojkovic, Nikola I.; Matović, Branko; Zarubica, Aleksandra R.

(2017)

TY  - JOUR
AU  - Vasic, Marija B.
AU  - Ranđelović, Marjan S.
AU  - Mitrović, Jelena Z.
AU  - Stojkovic, Nikola I.
AU  - Matović, Branko
AU  - Zarubica, Aleksandra R.
PY  - 2017
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1671
AB  - Titania based catalyst and TiO2 doped with zirconia were prepared by modified sol-gel method. The synthesized catalysts samples were characterized by BET, XRD, SEM and FTIR techniques. Photocatalytic activity was tested in the reaction of crystal violet (CV) dye decolorization/decomposition under UV light irradiation. The effect of several operational parameters, such as catalyst dosage, initial dye concentrations, duration of UV irradiation treatment and number of reaction cycles were also considered. The obtained results indicated faster dye decolorization with the increase of the catalyst amount and a decrease of initial CV concentrations. An influence of doping with zirconia on the physico-chemical properties of bare titania was studied. The doping procedure had affected photocatalytic properties of the final catalytic material, and had improved photocatalytic performances of doped catalyst on crystal violet decolorization/degradation in comparison to bare titania.
T2  - Hemijska industrija
T1  - Decolorization of crystal violet over TiO2 and TiO2 doped with zirconia photocatalysts
VL  - 71
IS  - 3
SP  - 259
EP  - 269
DO  - 10.2298/HEMIND160521036V
ER  - 
@article{
author = "Vasic, Marija B. and Ranđelović, Marjan S. and Mitrović, Jelena Z. and Stojkovic, Nikola I. and Matović, Branko and Zarubica, Aleksandra R.",
year = "2017",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1671",
abstract = "Titania based catalyst and TiO2 doped with zirconia were prepared by modified sol-gel method. The synthesized catalysts samples were characterized by BET, XRD, SEM and FTIR techniques. Photocatalytic activity was tested in the reaction of crystal violet (CV) dye decolorization/decomposition under UV light irradiation. The effect of several operational parameters, such as catalyst dosage, initial dye concentrations, duration of UV irradiation treatment and number of reaction cycles were also considered. The obtained results indicated faster dye decolorization with the increase of the catalyst amount and a decrease of initial CV concentrations. An influence of doping with zirconia on the physico-chemical properties of bare titania was studied. The doping procedure had affected photocatalytic properties of the final catalytic material, and had improved photocatalytic performances of doped catalyst on crystal violet decolorization/degradation in comparison to bare titania.",
journal = "Hemijska industrija",
title = "Decolorization of crystal violet over TiO2 and TiO2 doped with zirconia photocatalysts",
volume = "71",
number = "3",
pages = "259-269",
doi = "10.2298/HEMIND160521036V"
}
Vasic, M. B., Ranđelović, M. S., Mitrović, J. Z., Stojkovic, N. I., Matović, B.,& Zarubica, A. R. (2017). Decolorization of crystal violet over TiO2 and TiO2 doped with zirconia photocatalysts.
Hemijska industrija, 71(3), 259-269.
https://doi.org/10.2298/HEMIND160521036V
Vasic MB, Ranđelović MS, Mitrović JZ, Stojkovic NI, Matović B, Zarubica AR. Decolorization of crystal violet over TiO2 and TiO2 doped with zirconia photocatalysts. Hemijska industrija. 2017;71(3):259-269
Vasic Marija B., Ranđelović Marjan S., Mitrović Jelena Z., Stojkovic Nikola I., Matović Branko, Zarubica Aleksandra R., "Decolorization of crystal violet over TiO2 and TiO2 doped with zirconia photocatalysts" Hemijska industrija, 71, no. 3 (2017):259-269,
https://doi.org/10.2298/HEMIND160521036V .
2
1
2

Influence of Mg doping on structural, optical and photocatalytic performances of ceria nanopowders

Matović, Branko; Luković, Jelena M.; Stojadinovic, Bojan; Askrabic, Sonja; Zarubica, Aleksandra R.; Babić, Biljana M.; Dohcevic-Mitrovic, Zorana

(2017)

TY  - JOUR
AU  - Matović, Branko
AU  - Luković, Jelena M.
AU  - Stojadinovic, Bojan
AU  - Askrabic, Sonja
AU  - Zarubica, Aleksandra R.
AU  - Babić, Biljana M.
AU  - Dohcevic-Mitrovic, Zorana
PY  - 2017
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1905
AB  - Nanosized Mg-doped ceria powders were obtained by self-propagating room temperature reaction without using surfactants or templates. X-ray diffraction analysis and field emission scanning microscopy results showed that the doped samples are solid solutions with fluorite-type structure and spherical morphology. Raman spectra revealed an increase in the amount of oxygen vacancies with the increase of Mg concentration. This increasing results in a narrowing of the bandgap of CeO2. The photocatalytic performances of the Mg-doped ceria solid solutions were evaluated by decomposing an organic dye, crystal violet under UV irradiation. The Mg-doped ceria solid solutions exhibit significantly better photocatalytic activity than the pure CeO2 and commercial TiO2. The higher first rate constant of the Mg-doped samples demonstrated that they are much more efficient than TiO2 and CeO2 under UV light. Mg2+ dopant ions and oxygen vacancies play a significant role in the enhancement of photocatalytic performances of the Mg-doped ceria.
T2  - Processing and Application of Ceramics
T1  - Influence of Mg doping on structural, optical and photocatalytic performances of ceria nanopowders
VL  - 11
IS  - 4
SP  - 304
EP  - 310
DO  - 10.2298/PAC1704304M
ER  - 
@article{
author = "Matović, Branko and Luković, Jelena M. and Stojadinovic, Bojan and Askrabic, Sonja and Zarubica, Aleksandra R. and Babić, Biljana M. and Dohcevic-Mitrovic, Zorana",
year = "2017",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1905",
abstract = "Nanosized Mg-doped ceria powders were obtained by self-propagating room temperature reaction without using surfactants or templates. X-ray diffraction analysis and field emission scanning microscopy results showed that the doped samples are solid solutions with fluorite-type structure and spherical morphology. Raman spectra revealed an increase in the amount of oxygen vacancies with the increase of Mg concentration. This increasing results in a narrowing of the bandgap of CeO2. The photocatalytic performances of the Mg-doped ceria solid solutions were evaluated by decomposing an organic dye, crystal violet under UV irradiation. The Mg-doped ceria solid solutions exhibit significantly better photocatalytic activity than the pure CeO2 and commercial TiO2. The higher first rate constant of the Mg-doped samples demonstrated that they are much more efficient than TiO2 and CeO2 under UV light. Mg2+ dopant ions and oxygen vacancies play a significant role in the enhancement of photocatalytic performances of the Mg-doped ceria.",
journal = "Processing and Application of Ceramics",
title = "Influence of Mg doping on structural, optical and photocatalytic performances of ceria nanopowders",
volume = "11",
number = "4",
pages = "304-310",
doi = "10.2298/PAC1704304M"
}
Matović, B., Luković, J. M., Stojadinovic, B., Askrabic, S., Zarubica, A. R., Babić, B. M.,& Dohcevic-Mitrovic, Z. (2017). Influence of Mg doping on structural, optical and photocatalytic performances of ceria nanopowders.
Processing and Application of Ceramics, 11(4), 304-310.
https://doi.org/10.2298/PAC1704304M
Matović B, Luković JM, Stojadinovic B, Askrabic S, Zarubica AR, Babić BM, Dohcevic-Mitrovic Z. Influence of Mg doping on structural, optical and photocatalytic performances of ceria nanopowders. Processing and Application of Ceramics. 2017;11(4):304-310
Matović Branko, Luković Jelena M., Stojadinovic Bojan, Askrabic Sonja, Zarubica Aleksandra R., Babić Biljana M., Dohcevic-Mitrovic Zorana, "Influence of Mg doping on structural, optical and photocatalytic performances of ceria nanopowders" Processing and Application of Ceramics, 11, no. 4 (2017):304-310,
https://doi.org/10.2298/PAC1704304M .
1

Degradation of crystal violet over heterogeneous TiO2-based catalysts: The effect of process parameters

Vasic, Marija B.; Ranđelović, Marjan S.; Momčilović, Milan Z.; Matović, Branko; Zarubica, Aleksandra R.

(2016)

TY  - JOUR
AU  - Vasic, Marija B.
AU  - Ranđelović, Marjan S.
AU  - Momčilović, Milan Z.
AU  - Matović, Branko
AU  - Zarubica, Aleksandra R.
PY  - 2016
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1329
AB  - In this study, modified sol-gel method was employed to synthesize the pure and Zr-doped titania catalysts. Brunauer-Emmett-Teller (BET) method was applied to determine porosity, X-ray diffraction (XRD) analysis was used to study crystal structure, scanning electron microscopy (SEM) was used to investigate morphology and Fourier transform infrared spectroscopy (FTIR) was used to examine surface properties/total acidity of the obtained catalysts samples. Photocatalytic activity was tested in the reaction of crystal violet (CV) dye decolourization/degradation under UV light irradiation. The effects of several photocatalysis operational parameters were considered, such as catalyst dosage, initial dye concentrations, duration of UV irradiation treatment, as well as catalysts calcination temperatures and dopant amounts. The obtained results indicated faster dye decolourization/degradation with the increase of the catalyst dosage and the decrease of initial CV concentrations. The Zr-doping affects photocatalytic properties, i.e. CV decolourization/degradation of the prepared catalytic materials. Thus, addition of 5 wt.% of ZrO2 to titania increases photocatalytic effect for similar to 15% and addition of 10 wt.% of ZrO2 improves the photocatalytic efficiency of titania for nearly 30%.
T2  - Processing and Application of Ceramics
T1  - Degradation of crystal violet over heterogeneous TiO2-based catalysts: The effect of process parameters
VL  - 10
IS  - 3
SP  - 189
EP  - 198
DO  - 10.2298/PAC1603189V
ER  - 
@article{
author = "Vasic, Marija B. and Ranđelović, Marjan S. and Momčilović, Milan Z. and Matović, Branko and Zarubica, Aleksandra R.",
year = "2016",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1329",
abstract = "In this study, modified sol-gel method was employed to synthesize the pure and Zr-doped titania catalysts. Brunauer-Emmett-Teller (BET) method was applied to determine porosity, X-ray diffraction (XRD) analysis was used to study crystal structure, scanning electron microscopy (SEM) was used to investigate morphology and Fourier transform infrared spectroscopy (FTIR) was used to examine surface properties/total acidity of the obtained catalysts samples. Photocatalytic activity was tested in the reaction of crystal violet (CV) dye decolourization/degradation under UV light irradiation. The effects of several photocatalysis operational parameters were considered, such as catalyst dosage, initial dye concentrations, duration of UV irradiation treatment, as well as catalysts calcination temperatures and dopant amounts. The obtained results indicated faster dye decolourization/degradation with the increase of the catalyst dosage and the decrease of initial CV concentrations. The Zr-doping affects photocatalytic properties, i.e. CV decolourization/degradation of the prepared catalytic materials. Thus, addition of 5 wt.% of ZrO2 to titania increases photocatalytic effect for similar to 15% and addition of 10 wt.% of ZrO2 improves the photocatalytic efficiency of titania for nearly 30%.",
journal = "Processing and Application of Ceramics",
title = "Degradation of crystal violet over heterogeneous TiO2-based catalysts: The effect of process parameters",
volume = "10",
number = "3",
pages = "189-198",
doi = "10.2298/PAC1603189V"
}
Vasic, M. B., Ranđelović, M. S., Momčilović, M. Z., Matović, B.,& Zarubica, A. R. (2016). Degradation of crystal violet over heterogeneous TiO2-based catalysts: The effect of process parameters.
Processing and Application of Ceramics, 10(3), 189-198.
https://doi.org/10.2298/PAC1603189V
Vasic MB, Ranđelović MS, Momčilović MZ, Matović B, Zarubica AR. Degradation of crystal violet over heterogeneous TiO2-based catalysts: The effect of process parameters. Processing and Application of Ceramics. 2016;10(3):189-198
Vasic Marija B., Ranđelović Marjan S., Momčilović Milan Z., Matović Branko, Zarubica Aleksandra R., "Degradation of crystal violet over heterogeneous TiO2-based catalysts: The effect of process parameters" Processing and Application of Ceramics, 10, no. 3 (2016):189-198,
https://doi.org/10.2298/PAC1603189V .
3
3
3

Synthesis and characterization of spider silk calcite composite

Dmitrović, Svetlana; Jokić, Bojan M.; Prekajski, Marija D.; Pantić, Jelena R.; Zmejkoski, Danica; Zarubica, Aleksandra R.; Matović, Branko

(2016)

TY  - JOUR
AU  - Dmitrović, Svetlana
AU  - Jokić, Bojan M.
AU  - Prekajski, Marija D.
AU  - Pantić, Jelena R.
AU  - Zmejkoski, Danica
AU  - Zarubica, Aleksandra R.
AU  - Matović, Branko
PY  - 2016
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1172
AB  - Spider silk poses excellent mechanical properties, tenacity and elasticity and it has been used as a template for calcite mineralization to improve load bearing strength of osteoconductive calcite. The samples were obtained by mimicking biomineralization for five days in order to follow formation and growth of calcite on the surface of spider silk. Crystal phase was detected by XRD and FTIR spectroscopy. Microstructure, crystal size and its morphology were studied by means of FESEM. After two days of processing, pure calcite phase was obtained, and a size of the formed crystals increased with prolongation of biomineralization.
T2  - Processing and Application of Ceramics
T1  - Synthesis and characterization of spider silk calcite composite
VL  - 10
IS  - 1
SP  - 37
EP  - 40
DO  - 10.2298/PAC1601037D
ER  - 
@article{
author = "Dmitrović, Svetlana and Jokić, Bojan M. and Prekajski, Marija D. and Pantić, Jelena R. and Zmejkoski, Danica and Zarubica, Aleksandra R. and Matović, Branko",
year = "2016",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1172",
abstract = "Spider silk poses excellent mechanical properties, tenacity and elasticity and it has been used as a template for calcite mineralization to improve load bearing strength of osteoconductive calcite. The samples were obtained by mimicking biomineralization for five days in order to follow formation and growth of calcite on the surface of spider silk. Crystal phase was detected by XRD and FTIR spectroscopy. Microstructure, crystal size and its morphology were studied by means of FESEM. After two days of processing, pure calcite phase was obtained, and a size of the formed crystals increased with prolongation of biomineralization.",
journal = "Processing and Application of Ceramics",
title = "Synthesis and characterization of spider silk calcite composite",
volume = "10",
number = "1",
pages = "37-40",
doi = "10.2298/PAC1601037D"
}
Dmitrović, S., Jokić, B. M., Prekajski, M. D., Pantić, J. R., Zmejkoski, D., Zarubica, A. R.,& Matović, B. (2016). Synthesis and characterization of spider silk calcite composite.
Processing and Application of Ceramics, 10(1), 37-40.
https://doi.org/10.2298/PAC1601037D
Dmitrović S, Jokić BM, Prekajski MD, Pantić JR, Zmejkoski D, Zarubica AR, Matović B. Synthesis and characterization of spider silk calcite composite. Processing and Application of Ceramics. 2016;10(1):37-40
Dmitrović Svetlana, Jokić Bojan M., Prekajski Marija D., Pantić Jelena R., Zmejkoski Danica, Zarubica Aleksandra R., Matović Branko, "Synthesis and characterization of spider silk calcite composite" Processing and Application of Ceramics, 10, no. 1 (2016):37-40,
https://doi.org/10.2298/PAC1601037D .
3
3
3

Enhanced photoredox chemistry in surface-modified Mg2TiO4 nano-powders with bidentate benzene derivatives

Medić, Mina M.; Vasic, Marija; Zarubica, Aleksandra R.; Trandafilović, Lidija V.; Drazic, Goran; Dramićanin, Miroslav; Nedeljković, Jovan

(2016)

TY  - JOUR
AU  - Medić, Mina M.
AU  - Vasic, Marija
AU  - Zarubica, Aleksandra R.
AU  - Trandafilović, Lidija V.
AU  - Drazic, Goran
AU  - Dramićanin, Miroslav
AU  - Nedeljković, Jovan
PY  - 2016
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1278
AB  - Magnesium-orthotitanate (Mg2TiO4) nano-powder was synthesized using a Pechini-type polymerized complex route. Microstructural characterization involving transmission electron microscopy, X-ray diffraction analysis and nitrogen adsorption-desorption isotherms indicated that well-crystallized Mg2TiO4 nanoparticles are small in size (about 10 nm) with large specific surface area (72 m(2) g(-1)). The surface modification of Mg2TiO4 nano-powders with 5-amino salicylic acid and catechol induced a significant shift of absorption to the visible spectral region due to charge transfer complex formation. It should be emphasized that tunable optical properties of Mg2TiO4 nano-powders have never been reported in the literature. Degradation reactions of an organic dye (crystal violet) were used to test the photocatalytic ability of pristine and surface-modified Mg2TiO4 nano-powders under illumination in different spectral regions. Excitation with UV light indicated, for the first time, photocatalytic ability of Mg2TiO4. Also, improved photocatalytic performance of surface-modified Mg2TiO4 nano-powders was found in comparison to unmodified ones.
T2  - RSC Advances
T1  - Enhanced photoredox chemistry in surface-modified Mg2TiO4 nano-powders with bidentate benzene derivatives
VL  - 6
IS  - 97
SP  - 94780
EP  - 94786
DO  - 10.1039/c6ra16284c
ER  - 
@article{
author = "Medić, Mina M. and Vasic, Marija and Zarubica, Aleksandra R. and Trandafilović, Lidija V. and Drazic, Goran and Dramićanin, Miroslav and Nedeljković, Jovan",
year = "2016",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1278",
abstract = "Magnesium-orthotitanate (Mg2TiO4) nano-powder was synthesized using a Pechini-type polymerized complex route. Microstructural characterization involving transmission electron microscopy, X-ray diffraction analysis and nitrogen adsorption-desorption isotherms indicated that well-crystallized Mg2TiO4 nanoparticles are small in size (about 10 nm) with large specific surface area (72 m(2) g(-1)). The surface modification of Mg2TiO4 nano-powders with 5-amino salicylic acid and catechol induced a significant shift of absorption to the visible spectral region due to charge transfer complex formation. It should be emphasized that tunable optical properties of Mg2TiO4 nano-powders have never been reported in the literature. Degradation reactions of an organic dye (crystal violet) were used to test the photocatalytic ability of pristine and surface-modified Mg2TiO4 nano-powders under illumination in different spectral regions. Excitation with UV light indicated, for the first time, photocatalytic ability of Mg2TiO4. Also, improved photocatalytic performance of surface-modified Mg2TiO4 nano-powders was found in comparison to unmodified ones.",
journal = "RSC Advances",
title = "Enhanced photoredox chemistry in surface-modified Mg2TiO4 nano-powders with bidentate benzene derivatives",
volume = "6",
number = "97",
pages = "94780-94786",
doi = "10.1039/c6ra16284c"
}
Medić, M. M., Vasic, M., Zarubica, A. R., Trandafilović, L. V., Drazic, G., Dramićanin, M.,& Nedeljković, J. (2016). Enhanced photoredox chemistry in surface-modified Mg2TiO4 nano-powders with bidentate benzene derivatives.
RSC Advances, 6(97), 94780-94786.
https://doi.org/10.1039/c6ra16284c
Medić MM, Vasic M, Zarubica AR, Trandafilović LV, Drazic G, Dramićanin M, Nedeljković J. Enhanced photoredox chemistry in surface-modified Mg2TiO4 nano-powders with bidentate benzene derivatives. RSC Advances. 2016;6(97):94780-94786
Medić Mina M., Vasic Marija, Zarubica Aleksandra R., Trandafilović Lidija V., Drazic Goran, Dramićanin Miroslav, Nedeljković Jovan, "Enhanced photoredox chemistry in surface-modified Mg2TiO4 nano-powders with bidentate benzene derivatives" RSC Advances, 6, no. 97 (2016):94780-94786,
https://doi.org/10.1039/c6ra16284c .
13
12
13

Synthesis and characterization of Cr3+ doped TiO2 nanometric powders

Prekajski-Đorđević, Marija D.; Zarubica, Aleksandra R.; Babić, Biljana M.; Jokić, Bojan M.; Pantić, Jelena R.; Luković, Jelena M.; Matović, Branko

(2016)

TY  - JOUR
AU  - Prekajski-Đorđević, Marija D.
AU  - Zarubica, Aleksandra R.
AU  - Babić, Biljana M.
AU  - Jokić, Bojan M.
AU  - Pantić, Jelena R.
AU  - Luković, Jelena M.
AU  - Matović, Branko
PY  - 2016
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/824
AB  - Simple route was used for synthesis of nanostructured titania samples doped with 3 and 6 mol% of Cr3+ Titanium(IV)-isopropoxide and water were used as starting materials and as an agents for controlling hydrolysis and condensation reactions. The phase evolution of titania (TiO2) was followed by calcination at 400, 600 and 800 degrees C. The synthesized powders were examined by field emission scanning electron microscopy (FESEM), and X-ray diffraction (XRD). Single-phase anatase was obtained at low temperature (400 degrees C) in all cases. The photocatalytic activity of TiO2 doped nanopowders was evaluated by the photocatalytic degradation of crystal violet in aqueous solution. The present study indicates that this simple synthesis method can be an effective route to produce efficient photoactive doped anatase nanopowders. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
T2  - Ceramics International
T1  - Synthesis and characterization of Cr3+ doped TiO2 nanometric powders
VL  - 42
IS  - 1
SP  - 1862
EP  - 1869
DO  - 10.1016/j.ceramint.2015.09.151
ER  - 
@article{
author = "Prekajski-Đorđević, Marija D. and Zarubica, Aleksandra R. and Babić, Biljana M. and Jokić, Bojan M. and Pantić, Jelena R. and Luković, Jelena M. and Matović, Branko",
year = "2016",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/824",
abstract = "Simple route was used for synthesis of nanostructured titania samples doped with 3 and 6 mol% of Cr3+ Titanium(IV)-isopropoxide and water were used as starting materials and as an agents for controlling hydrolysis and condensation reactions. The phase evolution of titania (TiO2) was followed by calcination at 400, 600 and 800 degrees C. The synthesized powders were examined by field emission scanning electron microscopy (FESEM), and X-ray diffraction (XRD). Single-phase anatase was obtained at low temperature (400 degrees C) in all cases. The photocatalytic activity of TiO2 doped nanopowders was evaluated by the photocatalytic degradation of crystal violet in aqueous solution. The present study indicates that this simple synthesis method can be an effective route to produce efficient photoactive doped anatase nanopowders. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.",
journal = "Ceramics International",
title = "Synthesis and characterization of Cr3+ doped TiO2 nanometric powders",
volume = "42",
number = "1",
pages = "1862-1869",
doi = "10.1016/j.ceramint.2015.09.151"
}
Prekajski-Đorđević, M. D., Zarubica, A. R., Babić, B. M., Jokić, B. M., Pantić, J. R., Luković, J. M.,& Matović, B. (2016). Synthesis and characterization of Cr3+ doped TiO2 nanometric powders.
Ceramics International, 42(1), 1862-1869.
https://doi.org/10.1016/j.ceramint.2015.09.151
Prekajski-Đorđević MD, Zarubica AR, Babić BM, Jokić BM, Pantić JR, Luković JM, Matović B. Synthesis and characterization of Cr3+ doped TiO2 nanometric powders. Ceramics International. 2016;42(1):1862-1869
Prekajski-Đorđević Marija D., Zarubica Aleksandra R., Babić Biljana M., Jokić Bojan M., Pantić Jelena R., Luković Jelena M., Matović Branko, "Synthesis and characterization of Cr3+ doped TiO2 nanometric powders" Ceramics International, 42, no. 1 (2016):1862-1869,
https://doi.org/10.1016/j.ceramint.2015.09.151 .
1
6
5
6

The acid-base, morphological and structural properties of new biosorbent obtained by oxidative hydrothermal treatment of peat

Ranđelović, Marjan S.; Momčilović, Milan Z.; Purenović, Milovan M.; Zarubica, Aleksandra R.; Bojić, Aleksandar Lj.

(2016)

TY  - JOUR
AU  - Ranđelović, Marjan S.
AU  - Momčilović, Milan Z.
AU  - Purenović, Milovan M.
AU  - Zarubica, Aleksandra R.
AU  - Bojić, Aleksandar Lj.
PY  - 2016
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1076
AB  - Samples of natural peat (NP) were hydrothermally treated at different temperatures in oxidative and acidic aqueous medium to tailor their acid-base, adsorption, morphological and other properties. The obtained materials were thoroughly characterized by SEM, XRD and FTIR techniques, followed by determination of pH(pzc), examination of adsorption characteristics and the extent of organic matter leaching in water. Acid-base characteristics of these materials were examined by potentiometric and conductometric titration of corresponding aqueous suspensions. Experimental potentiometric data were interpreted using ProtoFit software (NEM, non-electrostatic model) which provided pKa values and concentrations of surface sites which are compared with corresponding values obtained by conductometric titration method. There are two main types of surface groups (carboxylic and phenolic) that are dominant in the materials and determine their acid-base behavior in the aqueous medium. Temperature during oxidative hydrothermal treatment has no significant effect on the total number of surface groups, but influences the ratio of carboxylic and phenol-type groups. Hence, acid-base properties of peat can be tailored, which is useful in designing and improving adsorptive characteristics of peat for the preferential removal of certain pollutants from water.
T2  - Environmental Earth Sciences
T1  - The acid-base, morphological and structural properties of new biosorbent obtained by oxidative hydrothermal treatment of peat
VL  - 75
IS  - 9
DO  - 10.1007/s12665-016-5242-0
ER  - 
@article{
author = "Ranđelović, Marjan S. and Momčilović, Milan Z. and Purenović, Milovan M. and Zarubica, Aleksandra R. and Bojić, Aleksandar Lj.",
year = "2016",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1076",
abstract = "Samples of natural peat (NP) were hydrothermally treated at different temperatures in oxidative and acidic aqueous medium to tailor their acid-base, adsorption, morphological and other properties. The obtained materials were thoroughly characterized by SEM, XRD and FTIR techniques, followed by determination of pH(pzc), examination of adsorption characteristics and the extent of organic matter leaching in water. Acid-base characteristics of these materials were examined by potentiometric and conductometric titration of corresponding aqueous suspensions. Experimental potentiometric data were interpreted using ProtoFit software (NEM, non-electrostatic model) which provided pKa values and concentrations of surface sites which are compared with corresponding values obtained by conductometric titration method. There are two main types of surface groups (carboxylic and phenolic) that are dominant in the materials and determine their acid-base behavior in the aqueous medium. Temperature during oxidative hydrothermal treatment has no significant effect on the total number of surface groups, but influences the ratio of carboxylic and phenol-type groups. Hence, acid-base properties of peat can be tailored, which is useful in designing and improving adsorptive characteristics of peat for the preferential removal of certain pollutants from water.",
journal = "Environmental Earth Sciences",
title = "The acid-base, morphological and structural properties of new biosorbent obtained by oxidative hydrothermal treatment of peat",
volume = "75",
number = "9",
doi = "10.1007/s12665-016-5242-0"
}
Ranđelović, M. S., Momčilović, M. Z., Purenović, M. M., Zarubica, A. R.,& Bojić, A. Lj. (2016). The acid-base, morphological and structural properties of new biosorbent obtained by oxidative hydrothermal treatment of peat.
Environmental Earth Sciences, 75(9).
https://doi.org/10.1007/s12665-016-5242-0
Ranđelović MS, Momčilović MZ, Purenović MM, Zarubica AR, Bojić AL. The acid-base, morphological and structural properties of new biosorbent obtained by oxidative hydrothermal treatment of peat. Environmental Earth Sciences. 2016;75(9)
Ranđelović Marjan S., Momčilović Milan Z., Purenović Milovan M., Zarubica Aleksandra R., Bojić Aleksandar Lj., "The acid-base, morphological and structural properties of new biosorbent obtained by oxidative hydrothermal treatment of peat" Environmental Earth Sciences, 75, no. 9 (2016),
https://doi.org/10.1007/s12665-016-5242-0 .
3
4
3

Iron doped anatase for application in photocatalysis

Babić, Biljana M.; Zarubica, Aleksandra R.; Minović-Arsić, Tamara; Pantić, Jelena R.; Jokić, Bojan M.; Abazović, Nadica; Matović, Branko

(2016)

TY  - JOUR
AU  - Babić, Biljana M.
AU  - Zarubica, Aleksandra R.
AU  - Minović-Arsić, Tamara
AU  - Pantić, Jelena R.
AU  - Jokić, Bojan M.
AU  - Abazović, Nadica
AU  - Matović, Branko
PY  - 2016
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1133
AB  - Titanium dioxide nanopowders, doped with different amount of Fe3+ ions (0.3-5.0 mass%), were synthesized by acid-catalyzed sol-gel method in a non-aqueous medium. The obtained powders were characterized by field emission scanning electron microscopy (FESEM), energy dispersive X-ray spectrometry (EDX) and UV/vis spectroscopy. Degradation reaction of crystal violet (CV) azo dye is used to test the photocatalytic activity of iron doped titanium dioxide nanopowders. The results are correlated with previous investigations about the structure and physico-chemical characteristics of obtained nanopowders. (C) 2015 Elsevier Ltd. All rights reserved.
T2  - Journal of the European Ceramic Society
T1  - Iron doped anatase for application in photocatalysis
VL  - 36
IS  - 12
SP  - 2991
EP  - 2996
DO  - 10.1016/j.jeurceramsoc.2015.11.031
ER  - 
@article{
author = "Babić, Biljana M. and Zarubica, Aleksandra R. and Minović-Arsić, Tamara and Pantić, Jelena R. and Jokić, Bojan M. and Abazović, Nadica and Matović, Branko",
year = "2016",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1133",
abstract = "Titanium dioxide nanopowders, doped with different amount of Fe3+ ions (0.3-5.0 mass%), were synthesized by acid-catalyzed sol-gel method in a non-aqueous medium. The obtained powders were characterized by field emission scanning electron microscopy (FESEM), energy dispersive X-ray spectrometry (EDX) and UV/vis spectroscopy. Degradation reaction of crystal violet (CV) azo dye is used to test the photocatalytic activity of iron doped titanium dioxide nanopowders. The results are correlated with previous investigations about the structure and physico-chemical characteristics of obtained nanopowders. (C) 2015 Elsevier Ltd. All rights reserved.",
journal = "Journal of the European Ceramic Society",
title = "Iron doped anatase for application in photocatalysis",
volume = "36",
number = "12",
pages = "2991-2996",
doi = "10.1016/j.jeurceramsoc.2015.11.031"
}
Babić, B. M., Zarubica, A. R., Minović-Arsić, T., Pantić, J. R., Jokić, B. M., Abazović, N.,& Matović, B. (2016). Iron doped anatase for application in photocatalysis.
Journal of the European Ceramic Society, 36(12), 2991-2996.
https://doi.org/10.1016/j.jeurceramsoc.2015.11.031
Babić BM, Zarubica AR, Minović-Arsić T, Pantić JR, Jokić BM, Abazović N, Matović B. Iron doped anatase for application in photocatalysis. Journal of the European Ceramic Society. 2016;36(12):2991-2996
Babić Biljana M., Zarubica Aleksandra R., Minović-Arsić Tamara, Pantić Jelena R., Jokić Bojan M., Abazović Nadica, Matović Branko, "Iron doped anatase for application in photocatalysis" Journal of the European Ceramic Society, 36, no. 12 (2016):2991-2996,
https://doi.org/10.1016/j.jeurceramsoc.2015.11.031 .
9
8
10

Prediction of possible CaMnO3 modifications using an ab initio minimization data-mining approach

Zagorac, Jelena B.; Zagorac, Dejan; Zarubica, Aleksandra R.; Schoen, J. Christian; Djuris, Katarina; Matović, Branko

(2014)

TY  - JOUR
AU  - Zagorac, Jelena B.
AU  - Zagorac, Dejan
AU  - Zarubica, Aleksandra R.
AU  - Schoen, J. Christian
AU  - Djuris, Katarina
AU  - Matović, Branko
PY  - 2014
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/150
AB  - We have performed a crystal structure prediction study of CaMnO3 focusing on structures generated by octahedral tilting according to group-subgroup relations from the ideal perovskite type (Pm (3) over barm), which is the aristotype of the experimentally known CaMnO3 compound in the Pnma space group. Furthermore, additional structure candidates have been obtained using data mining. For each of the structure candidates, a local optimization on the ab initio level using density-functional theory (LDA, hybrid B3LYP) and the Hartree--Fock (HF) method was performed, and we find that several of the modifications may be experimentally accessible. In the high-pressure regime, we identify a post-perovskite phase in the CaIrO3 type, not previously observed in CaMnO3. Similarly, calculations at effective negative pressure predict a phase transition from the orthorhombic perovskite to an ilmenite-type (FeTiO3) modification of CaMnO3.
T2  - Acta Crystallographica Section B: Structural Science Crystal Engineering and Materials
T1  - Prediction of possible CaMnO3 modifications using an ab initio minimization data-mining approach
VL  - 70
SP  - 809
EP  - 819
DO  - 10.1107/S2052520614013122
ER  - 
@article{
author = "Zagorac, Jelena B. and Zagorac, Dejan and Zarubica, Aleksandra R. and Schoen, J. Christian and Djuris, Katarina and Matović, Branko",
year = "2014",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/150",
abstract = "We have performed a crystal structure prediction study of CaMnO3 focusing on structures generated by octahedral tilting according to group-subgroup relations from the ideal perovskite type (Pm (3) over barm), which is the aristotype of the experimentally known CaMnO3 compound in the Pnma space group. Furthermore, additional structure candidates have been obtained using data mining. For each of the structure candidates, a local optimization on the ab initio level using density-functional theory (LDA, hybrid B3LYP) and the Hartree--Fock (HF) method was performed, and we find that several of the modifications may be experimentally accessible. In the high-pressure regime, we identify a post-perovskite phase in the CaIrO3 type, not previously observed in CaMnO3. Similarly, calculations at effective negative pressure predict a phase transition from the orthorhombic perovskite to an ilmenite-type (FeTiO3) modification of CaMnO3.",
journal = "Acta Crystallographica Section B: Structural Science Crystal Engineering and Materials",
title = "Prediction of possible CaMnO3 modifications using an ab initio minimization data-mining approach",
volume = "70",
pages = "809-819",
doi = "10.1107/S2052520614013122"
}
Zagorac, J. B., Zagorac, D., Zarubica, A. R., Schoen, J. C., Djuris, K.,& Matović, B. (2014). Prediction of possible CaMnO3 modifications using an ab initio minimization data-mining approach.
Acta Crystallographica Section B: Structural Science Crystal Engineering and Materials, 70, 809-819.
https://doi.org/10.1107/S2052520614013122
Zagorac JB, Zagorac D, Zarubica AR, Schoen JC, Djuris K, Matović B. Prediction of possible CaMnO3 modifications using an ab initio minimization data-mining approach. Acta Crystallographica Section B: Structural Science Crystal Engineering and Materials. 2014;70:809-819
Zagorac Jelena B., Zagorac Dejan, Zarubica Aleksandra R., Schoen J. Christian, Djuris Katarina, Matović Branko, "Prediction of possible CaMnO3 modifications using an ab initio minimization data-mining approach" Acta Crystallographica Section B: Structural Science Crystal Engineering and Materials, 70 (2014):809-819,
https://doi.org/10.1107/S2052520614013122 .
1
12
13
13

Structural study of nanosized yttrium-doped CaMnO3 perovskites

Zagorac, Jelena B.; Zarubica, Aleksandra R.; Radosavljević-Mihajlović, Ana S.; Zagorac, Dejan; Matović, Branko

(2014)

TY  - JOUR
AU  - Zagorac, Jelena B.
AU  - Zarubica, Aleksandra R.
AU  - Radosavljević-Mihajlović, Ana S.
AU  - Zagorac, Dejan
AU  - Matović, Branko
PY  - 2014
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/6025
AB  - Nanostructured compounds with general formula Ca1-xYxMnO3 (0 LT = x LT = 1) were synthesized by modified glycine nitrate procedure. In the next step, we have investigated crystal structure and microstructure of the synthesized samples using X-ray methods and Rietveld analysis. Focus of this research was the structural stability of the yttrium-doped CaMnO3 perovskite phases, which crystallize in orthorhombic space group Pnma. We observed that the unit cell volumes of the investigated compounds increase proportionally with yttrium amount. Furthermore, we investigated the influence of yttrium amount on Mn-O bond angles and distances, tilting of MnO6 octahedra and deformation due to the presence of Jahn-Teller distortion around Mn3+ cation. In order to estimate effective coordination of A and B sites, bond valence calculations (BVC) were performed for A and B site cations. Finally, the photoelectron spectroscopy (XPS) method was applied in order to follow yttrium concentration in the perovskite phases.
T2  - Bulletin of Materials Science
T1  - Structural study of nanosized yttrium-doped CaMnO3 perovskites
VL  - 37
IS  - 3
SP  - 407
EP  - 416
DO  - 10.1007/s12034-014-0675-0
ER  - 
@article{
author = "Zagorac, Jelena B. and Zarubica, Aleksandra R. and Radosavljević-Mihajlović, Ana S. and Zagorac, Dejan and Matović, Branko",
year = "2014",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/6025",
abstract = "Nanostructured compounds with general formula Ca1-xYxMnO3 (0 LT = x LT = 1) were synthesized by modified glycine nitrate procedure. In the next step, we have investigated crystal structure and microstructure of the synthesized samples using X-ray methods and Rietveld analysis. Focus of this research was the structural stability of the yttrium-doped CaMnO3 perovskite phases, which crystallize in orthorhombic space group Pnma. We observed that the unit cell volumes of the investigated compounds increase proportionally with yttrium amount. Furthermore, we investigated the influence of yttrium amount on Mn-O bond angles and distances, tilting of MnO6 octahedra and deformation due to the presence of Jahn-Teller distortion around Mn3+ cation. In order to estimate effective coordination of A and B sites, bond valence calculations (BVC) were performed for A and B site cations. Finally, the photoelectron spectroscopy (XPS) method was applied in order to follow yttrium concentration in the perovskite phases.",
journal = "Bulletin of Materials Science",
title = "Structural study of nanosized yttrium-doped CaMnO3 perovskites",
volume = "37",
number = "3",
pages = "407-416",
doi = "10.1007/s12034-014-0675-0"
}
Zagorac, J. B., Zarubica, A. R., Radosavljević-Mihajlović, A. S., Zagorac, D.,& Matović, B. (2014). Structural study of nanosized yttrium-doped CaMnO3 perovskites.
Bulletin of Materials Science, 37(3), 407-416.
https://doi.org/10.1007/s12034-014-0675-0
Zagorac JB, Zarubica AR, Radosavljević-Mihajlović AS, Zagorac D, Matović B. Structural study of nanosized yttrium-doped CaMnO3 perovskites. Bulletin of Materials Science. 2014;37(3):407-416
Zagorac Jelena B., Zarubica Aleksandra R., Radosavljević-Mihajlović Ana S., Zagorac Dejan, Matović Branko, "Structural study of nanosized yttrium-doped CaMnO3 perovskites" Bulletin of Materials Science, 37, no. 3 (2014):407-416,
https://doi.org/10.1007/s12034-014-0675-0 .
3
2
2

Study on the efficient removal of clopyralid from water using a resorcinol-formaldehyde carbon cryogel

Momčilović, Milan Z.; Ranđelović, Marjan S.; Onjia, Antonije E.; Zarubica, Aleksandra R.; Babić, Biljana M.; Matović, Branko

(2014)

TY  - JOUR
AU  - Momčilović, Milan Z.
AU  - Ranđelović, Marjan S.
AU  - Onjia, Antonije E.
AU  - Zarubica, Aleksandra R.
AU  - Babić, Biljana M.
AU  - Matović, Branko
PY  - 2014
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/5984
AB  - A resorcinol-formaldehyde carbon cryogel was prepared, characterized and used for the removal of the commonly used herbicide clopyralid from aqueous solutions under varying experimental conditions. The carbon exhibited a relatively high specific surface area, significant mesoporosity and an amorphous structure. The following isotherm models were used to interpret the equilibrium data: the Langmuir, Freundlich, Temkin, Dubinin-Radushkevich, Jovanovic, Hurkins-Jura and the Helsey Model. Several models fitted the data well although the calculated values for q(max) poorly correlated with the experimentally obtained data. The pseudo-first and pseudo-second-order kinetic models, the models of Elovich, Bangham and the intraparticle diffusion model were employed for fitting the kinetic data. The rate of the process was fast at the beginning, although the adsorption equilibrium was not attained before 24 h. The adsorption was found to be pH dependent and favored in acidic solutions.
T2  - Journal of the Serbian Chemical Society
T1  - Study on the efficient removal of clopyralid from water using a resorcinol-formaldehyde carbon cryogel
VL  - 79
IS  - 4
SP  - 481
EP  - 494
DO  - 10.2298/JSC130611151M
ER  - 
@article{
author = "Momčilović, Milan Z. and Ranđelović, Marjan S. and Onjia, Antonije E. and Zarubica, Aleksandra R. and Babić, Biljana M. and Matović, Branko",
year = "2014",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/5984",
abstract = "A resorcinol-formaldehyde carbon cryogel was prepared, characterized and used for the removal of the commonly used herbicide clopyralid from aqueous solutions under varying experimental conditions. The carbon exhibited a relatively high specific surface area, significant mesoporosity and an amorphous structure. The following isotherm models were used to interpret the equilibrium data: the Langmuir, Freundlich, Temkin, Dubinin-Radushkevich, Jovanovic, Hurkins-Jura and the Helsey Model. Several models fitted the data well although the calculated values for q(max) poorly correlated with the experimentally obtained data. The pseudo-first and pseudo-second-order kinetic models, the models of Elovich, Bangham and the intraparticle diffusion model were employed for fitting the kinetic data. The rate of the process was fast at the beginning, although the adsorption equilibrium was not attained before 24 h. The adsorption was found to be pH dependent and favored in acidic solutions.",
journal = "Journal of the Serbian Chemical Society",
title = "Study on the efficient removal of clopyralid from water using a resorcinol-formaldehyde carbon cryogel",
volume = "79",
number = "4",
pages = "481-494",
doi = "10.2298/JSC130611151M"
}
Momčilović, M. Z., Ranđelović, M. S., Onjia, A. E., Zarubica, A. R., Babić, B. M.,& Matović, B. (2014). Study on the efficient removal of clopyralid from water using a resorcinol-formaldehyde carbon cryogel.
Journal of the Serbian Chemical Society, 79(4), 481-494.
https://doi.org/10.2298/JSC130611151M
Momčilović MZ, Ranđelović MS, Onjia AE, Zarubica AR, Babić BM, Matović B. Study on the efficient removal of clopyralid from water using a resorcinol-formaldehyde carbon cryogel. Journal of the Serbian Chemical Society. 2014;79(4):481-494
Momčilović Milan Z., Ranđelović Marjan S., Onjia Antonije E., Zarubica Aleksandra R., Babić Biljana M., Matović Branko, "Study on the efficient removal of clopyralid from water using a resorcinol-formaldehyde carbon cryogel" Journal of the Serbian Chemical Society, 79, no. 4 (2014):481-494,
https://doi.org/10.2298/JSC130611151M .
3
3
5

Design and photocatalytic ability of ordered mesoporous TiO2 thin films

Zarubica, Aleksandra R.; Vasic, M.; Antonijevic, M. D.; Ranđelović, Marjan S.; Momčilović, Milan Z.; Krstić, Jelena; Nedeljković, Jovan

(2014)

TY  - JOUR
AU  - Zarubica, Aleksandra R.
AU  - Vasic, M.
AU  - Antonijevic, M. D.
AU  - Ranđelović, Marjan S.
AU  - Momčilović, Milan Z.
AU  - Krstić, Jelena
AU  - Nedeljković, Jovan
PY  - 2014
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/95
AB  - Homogeneous and crack-free TiO2 films with templated mesoporosity were prepared by the dip coating technique using an evaporation-induced, self-assembly method. The synthesized mesoporous TiO2 films were characterized using SEM/TEM, BET and XRD techniques. Degradation reactions of methylene blue and crystal violet dyes were used to test the photocatalytic capability of mesoporous TiO2 films. The degradation kinetics of methylene blue and crystal violet were investigated over a broad range of initial concentrations of the organic dyes. The kinetic data were correlated with the specific surface area and thickness of mesoporous TiO2 films, as well as number of reaction cycles. (C) 2014 Elsevier Ltd. All rights reserved.
T2  - Materials Research Bulletin
T1  - Design and photocatalytic ability of ordered mesoporous TiO2 thin films
VL  - 57
SP  - 146
EP  - 151
DO  - 10.1016/j.materresbull.2014.03.015
ER  - 
@article{
author = "Zarubica, Aleksandra R. and Vasic, M. and Antonijevic, M. D. and Ranđelović, Marjan S. and Momčilović, Milan Z. and Krstić, Jelena and Nedeljković, Jovan",
year = "2014",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/95",
abstract = "Homogeneous and crack-free TiO2 films with templated mesoporosity were prepared by the dip coating technique using an evaporation-induced, self-assembly method. The synthesized mesoporous TiO2 films were characterized using SEM/TEM, BET and XRD techniques. Degradation reactions of methylene blue and crystal violet dyes were used to test the photocatalytic capability of mesoporous TiO2 films. The degradation kinetics of methylene blue and crystal violet were investigated over a broad range of initial concentrations of the organic dyes. The kinetic data were correlated with the specific surface area and thickness of mesoporous TiO2 films, as well as number of reaction cycles. (C) 2014 Elsevier Ltd. All rights reserved.",
journal = "Materials Research Bulletin",
title = "Design and photocatalytic ability of ordered mesoporous TiO2 thin films",
volume = "57",
pages = "146-151",
doi = "10.1016/j.materresbull.2014.03.015"
}
Zarubica, A. R., Vasic, M., Antonijevic, M. D., Ranđelović, M. S., Momčilović, M. Z., Krstić, J.,& Nedeljković, J. (2014). Design and photocatalytic ability of ordered mesoporous TiO2 thin films.
Materials Research Bulletin, 57, 146-151.
https://doi.org/10.1016/j.materresbull.2014.03.015
Zarubica AR, Vasic M, Antonijevic MD, Ranđelović MS, Momčilović MZ, Krstić J, Nedeljković J. Design and photocatalytic ability of ordered mesoporous TiO2 thin films. Materials Research Bulletin. 2014;57:146-151
Zarubica Aleksandra R., Vasic M., Antonijevic M. D., Ranđelović Marjan S., Momčilović Milan Z., Krstić Jelena, Nedeljković Jovan, "Design and photocatalytic ability of ordered mesoporous TiO2 thin films" Materials Research Bulletin, 57 (2014):146-151,
https://doi.org/10.1016/j.materresbull.2014.03.015 .
1
12
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12

Silver film on nanocrystalline TiO2 support: Photocatalytic and antimicrobial ability

Vukoje, Ivana D.; Tomasevic-Ilic, Tijana D.; Zarubica, Aleksandra R.; Dimitrijević, Suzana I.; Budimir, Milica; Vranješ, Mila; Šaponjić, Zoran; Nedeljković, Jovan

(2014)

TY  - JOUR
AU  - Vukoje, Ivana D.
AU  - Tomasevic-Ilic, Tijana D.
AU  - Zarubica, Aleksandra R.
AU  - Dimitrijević, Suzana I.
AU  - Budimir, Milica
AU  - Vranješ, Mila
AU  - Šaponjić, Zoran
AU  - Nedeljković, Jovan
PY  - 2014
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/343
AB  - Nanocrystalline TiO2 films were prepared on glass slides by the dip coating technique using colloidal solutions consisting of 4.5 nm particles as a precursor. Photoirradiation of nanocrystalline TiO2 film modified with alanine that covalently binds to the surface of TiO2 and at the same time chelate silver ions induced formation of metallic silver film. Optical and morphological properties of thin silver films on nanocrystalline TiO2 support were studied by absorption spectroscopy and atomic force microscopy. Improvement of photocatalytic performance of nanocrystalline TiO2 films after deposition of silver was observed in degradation reaction of crystal violet. Antimicrobial ability of deposited silver films on nanocrystalline TiO2 support was tested in dark as a function of time against Escherichia coli, Staphylococcus aureus, and Candida albicans. The silver films ensured maximum cells reduction of both bacteria, while the fungi reduction reached satisfactory 98.45% after 24 h of contact. (C) 2014 Elsevier Ltd. All rights reserved.
T2  - Materials Research Bulletin
T1  - Silver film on nanocrystalline TiO2 support: Photocatalytic and antimicrobial ability
VL  - 60
SP  - 824
EP  - 829
DO  - 10.1016/j.materresbull.2014.09.073
ER  - 
@article{
author = "Vukoje, Ivana D. and Tomasevic-Ilic, Tijana D. and Zarubica, Aleksandra R. and Dimitrijević, Suzana I. and Budimir, Milica and Vranješ, Mila and Šaponjić, Zoran and Nedeljković, Jovan",
year = "2014",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/343",
abstract = "Nanocrystalline TiO2 films were prepared on glass slides by the dip coating technique using colloidal solutions consisting of 4.5 nm particles as a precursor. Photoirradiation of nanocrystalline TiO2 film modified with alanine that covalently binds to the surface of TiO2 and at the same time chelate silver ions induced formation of metallic silver film. Optical and morphological properties of thin silver films on nanocrystalline TiO2 support were studied by absorption spectroscopy and atomic force microscopy. Improvement of photocatalytic performance of nanocrystalline TiO2 films after deposition of silver was observed in degradation reaction of crystal violet. Antimicrobial ability of deposited silver films on nanocrystalline TiO2 support was tested in dark as a function of time against Escherichia coli, Staphylococcus aureus, and Candida albicans. The silver films ensured maximum cells reduction of both bacteria, while the fungi reduction reached satisfactory 98.45% after 24 h of contact. (C) 2014 Elsevier Ltd. All rights reserved.",
journal = "Materials Research Bulletin",
title = "Silver film on nanocrystalline TiO2 support: Photocatalytic and antimicrobial ability",
volume = "60",
pages = "824-829",
doi = "10.1016/j.materresbull.2014.09.073"
}
Vukoje, I. D., Tomasevic-Ilic, T. D., Zarubica, A. R., Dimitrijević, S. I., Budimir, M., Vranješ, M., Šaponjić, Z.,& Nedeljković, J. (2014). Silver film on nanocrystalline TiO2 support: Photocatalytic and antimicrobial ability.
Materials Research Bulletin, 60, 824-829.
https://doi.org/10.1016/j.materresbull.2014.09.073
Vukoje ID, Tomasevic-Ilic TD, Zarubica AR, Dimitrijević SI, Budimir M, Vranješ M, Šaponjić Z, Nedeljković J. Silver film on nanocrystalline TiO2 support: Photocatalytic and antimicrobial ability. Materials Research Bulletin. 2014;60:824-829
Vukoje Ivana D., Tomasevic-Ilic Tijana D., Zarubica Aleksandra R., Dimitrijević Suzana I., Budimir Milica, Vranješ Mila, Šaponjić Zoran, Nedeljković Jovan, "Silver film on nanocrystalline TiO2 support: Photocatalytic and antimicrobial ability" Materials Research Bulletin, 60 (2014):824-829,
https://doi.org/10.1016/j.materresbull.2014.09.073 .
4
3
4

Structural, textural and adsorption characteristics of bentonite-based composite

Ranđelović, Marjan S.; Purenović, Milovan M.; Matović, Branko; Zarubica, Aleksandra R.; Momčilović, Milan Z.; Purenović, Jelena M.

(2014)

TY  - JOUR
AU  - Ranđelović, Marjan S.
AU  - Purenović, Milovan M.
AU  - Matović, Branko
AU  - Zarubica, Aleksandra R.
AU  - Momčilović, Milan Z.
AU  - Purenović, Jelena M.
PY  - 2014
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/6042
AB  - An application of coatings composed of mixed (hydr)oxides over bentonite particles in aqueous suspension, in narrow range of pH, has been proven as a useful method for obtaining bentonite based composite with a developed, specific surface area and pronounced adsorption features toward cationic pollutants. This paper deals with detailed characterization of structure as well as textural and adsorption properties of bentonite based composite. The structure of the composite was examined by using XRD technique providing results that confirm changes in orientation of layered quasi-crystalline particles of montmorillonite, which is the most common component of bentonite clay. Surface area and pore volumes were determined by N-2 adsorption at -196 degrees C using BET, t-plot, alpha(s)-plot, Dubinin Radushkevich and Dolli-more Heal method. The results have revealed that the specific surface area for composite is about two times higher than for starting bentonite. Moreover, modification of bentonite leads to significant changes in the meso- and microporosity. Adsorption properties of the composite were studied by analyzing the adsorption of dye methylene blue which was used in this study as a model of cationic pollutant in water. The most prominent role in the mechanism of dye molecules retention on the surface, interlayers and in the pores of the adsorbent is ascribed to establishing of electrostatic, van der Waals and hydrogen bonds. The shape of adsorption isotherm indicates that methylene blue can be adsorbed onto composite in more than one layer. (C) 2014 Elsevier Inc. All rights reserved.
T2  - Microporous and Mesoporous Materials
T1  - Structural, textural and adsorption characteristics of bentonite-based composite
VL  - 195
SP  - 67
EP  - 74
DO  - 10.1016/j.micromeso.2014.03.031
ER  - 
@article{
author = "Ranđelović, Marjan S. and Purenović, Milovan M. and Matović, Branko and Zarubica, Aleksandra R. and Momčilović, Milan Z. and Purenović, Jelena M.",
year = "2014",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/6042",
abstract = "An application of coatings composed of mixed (hydr)oxides over bentonite particles in aqueous suspension, in narrow range of pH, has been proven as a useful method for obtaining bentonite based composite with a developed, specific surface area and pronounced adsorption features toward cationic pollutants. This paper deals with detailed characterization of structure as well as textural and adsorption properties of bentonite based composite. The structure of the composite was examined by using XRD technique providing results that confirm changes in orientation of layered quasi-crystalline particles of montmorillonite, which is the most common component of bentonite clay. Surface area and pore volumes were determined by N-2 adsorption at -196 degrees C using BET, t-plot, alpha(s)-plot, Dubinin Radushkevich and Dolli-more Heal method. The results have revealed that the specific surface area for composite is about two times higher than for starting bentonite. Moreover, modification of bentonite leads to significant changes in the meso- and microporosity. Adsorption properties of the composite were studied by analyzing the adsorption of dye methylene blue which was used in this study as a model of cationic pollutant in water. The most prominent role in the mechanism of dye molecules retention on the surface, interlayers and in the pores of the adsorbent is ascribed to establishing of electrostatic, van der Waals and hydrogen bonds. The shape of adsorption isotherm indicates that methylene blue can be adsorbed onto composite in more than one layer. (C) 2014 Elsevier Inc. All rights reserved.",
journal = "Microporous and Mesoporous Materials",
title = "Structural, textural and adsorption characteristics of bentonite-based composite",
volume = "195",
pages = "67-74",
doi = "10.1016/j.micromeso.2014.03.031"
}
Ranđelović, M. S., Purenović, M. M., Matović, B., Zarubica, A. R., Momčilović, M. Z.,& Purenović, J. M. (2014). Structural, textural and adsorption characteristics of bentonite-based composite.
Microporous and Mesoporous Materials, 195, 67-74.
https://doi.org/10.1016/j.micromeso.2014.03.031
Ranđelović MS, Purenović MM, Matović B, Zarubica AR, Momčilović MZ, Purenović JM. Structural, textural and adsorption characteristics of bentonite-based composite. Microporous and Mesoporous Materials. 2014;195:67-74
Ranđelović Marjan S., Purenović Milovan M., Matović Branko, Zarubica Aleksandra R., Momčilović Milan Z., Purenović Jelena M., "Structural, textural and adsorption characteristics of bentonite-based composite" Microporous and Mesoporous Materials, 195 (2014):67-74,
https://doi.org/10.1016/j.micromeso.2014.03.031 .
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The balance between acidity and tetragonal phase fraction in the favorable catalytic act of modified zirconia towards isomerized n-hexane(s)

Zarubica, Aleksandra R.; Ranđelović, Marjan S.; Momčilović, Milan Z.; Stojkovic, N.; Vasic, M.; Radulovic, N.

(2013)

TY  - JOUR
AU  - Zarubica, Aleksandra R.
AU  - Ranđelović, Marjan S.
AU  - Momčilović, Milan Z.
AU  - Stojkovic, N.
AU  - Vasic, M.
AU  - Radulovic, N.
PY  - 2013
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/5369
AB  - Zirconia-based catalysts were promoted by acid functions (sulfate and phosphate anions) and tested in order to establish catalyst efficiency in test reaction of n-hexane isomerization. The impact of surface and structural properties on the final catalytic performance is also investigated. It is proven that well-established balance between total catalyst acidity, acidic surface density and crystal phase nano-structure determines the catalytic activity in the reaction towards isomerized products. Type of acidic promoter strongly affects the resulted catalytic act. This stands for pyrosylfate groups in sulfated zirconia catalysts and orthophosphate groups in phosphated zirconia catalysts both essential in the favorable reaction run.
T2  - Optoelectronics and Advanced Materials - Rapid Communications
T1  - The balance between acidity and tetragonal phase fraction in the favorable catalytic act of modified zirconia towards isomerized n-hexane(s)
VL  - 7
IS  - 1-2
SP  - 62
EP  - 69
ER  - 
@article{
author = "Zarubica, Aleksandra R. and Ranđelović, Marjan S. and Momčilović, Milan Z. and Stojkovic, N. and Vasic, M. and Radulovic, N.",
year = "2013",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/5369",
abstract = "Zirconia-based catalysts were promoted by acid functions (sulfate and phosphate anions) and tested in order to establish catalyst efficiency in test reaction of n-hexane isomerization. The impact of surface and structural properties on the final catalytic performance is also investigated. It is proven that well-established balance between total catalyst acidity, acidic surface density and crystal phase nano-structure determines the catalytic activity in the reaction towards isomerized products. Type of acidic promoter strongly affects the resulted catalytic act. This stands for pyrosylfate groups in sulfated zirconia catalysts and orthophosphate groups in phosphated zirconia catalysts both essential in the favorable reaction run.",
journal = "Optoelectronics and Advanced Materials - Rapid Communications",
title = "The balance between acidity and tetragonal phase fraction in the favorable catalytic act of modified zirconia towards isomerized n-hexane(s)",
volume = "7",
number = "1-2",
pages = "62-69"
}
Zarubica, A. R., Ranđelović, M. S., Momčilović, M. Z., Stojkovic, N., Vasic, M.,& Radulovic, N. (2013). The balance between acidity and tetragonal phase fraction in the favorable catalytic act of modified zirconia towards isomerized n-hexane(s).
Optoelectronics and Advanced Materials - Rapid Communications, 7(1-2), 62-69.
Zarubica AR, Ranđelović MS, Momčilović MZ, Stojkovic N, Vasic M, Radulovic N. The balance between acidity and tetragonal phase fraction in the favorable catalytic act of modified zirconia towards isomerized n-hexane(s). Optoelectronics and Advanced Materials - Rapid Communications. 2013;7(1-2):62-69
Zarubica Aleksandra R., Ranđelović Marjan S., Momčilović Milan Z., Stojkovic N., Vasic M., Radulovic N., "The balance between acidity and tetragonal phase fraction in the favorable catalytic act of modified zirconia towards isomerized n-hexane(s)" Optoelectronics and Advanced Materials - Rapid Communications, 7, no. 1-2 (2013):62-69

SBA-15 templated mesoporous carbons for 2,4-dichlorophenoxyacetic acid removal

Momčilović, Milan Z.; Ranđelović, Marjan S.; Zarubica, Aleksandra R.; Onjia, Antonije E.; Kokunešoski, Maja; Matović, Branko

(2013)

TY  - JOUR
AU  - Momčilović, Milan Z.
AU  - Ranđelović, Marjan S.
AU  - Zarubica, Aleksandra R.
AU  - Onjia, Antonije E.
AU  - Kokunešoski, Maja
AU  - Matović, Branko
PY  - 2013
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/5420
AB  - The ordered mesoporous silica SBA-15 was synthesized and used as a template for obtaining mesoporous carbon replicas. Adsorptive removal of pesticide 2,4-dichlorophenoxyacetic acid (2,4-D) from aqueous solutions onto two carbon replicas was investigated. Batch adsorption experiments varied in initial adsorptive concentration, contacting times, solution pH, and adsorbent dosage. Pseudo-first order model, pseudo-second order model, and intraparticle diffusion model were selected to interpret the kinetics of adsorption. Kinetic parameters such as rate constants, equilibrium adsorption capacities and correlation coefficients were calculated and discussed for each model. Equilibrium data were linearly fitted to Langmuir, Freundlich, Tamkin, Dubinin-Radushkevich, Jovanovic, Hurkins-Jura and Halsey isotherm models. It was shown that adsorption of 2,4-D onto two carbon replicas well followed the pseudo-second order kinetic model. Langmuir isotherm represented experimental data in the best way since this model gave the best fit. Adsorption capacity strongly depends on the solution pH and increases at lower pH values. (C) 2012 Elsevier B.V. All rights reserved.
T2  - Chemical Engineering Journal
T1  - SBA-15 templated mesoporous carbons for 2,4-dichlorophenoxyacetic acid removal
VL  - 220
SP  - 276
EP  - 283
DO  - 10.1016/j.cej.2012.12.024
ER  - 
@article{
author = "Momčilović, Milan Z. and Ranđelović, Marjan S. and Zarubica, Aleksandra R. and Onjia, Antonije E. and Kokunešoski, Maja and Matović, Branko",
year = "2013",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/5420",
abstract = "The ordered mesoporous silica SBA-15 was synthesized and used as a template for obtaining mesoporous carbon replicas. Adsorptive removal of pesticide 2,4-dichlorophenoxyacetic acid (2,4-D) from aqueous solutions onto two carbon replicas was investigated. Batch adsorption experiments varied in initial adsorptive concentration, contacting times, solution pH, and adsorbent dosage. Pseudo-first order model, pseudo-second order model, and intraparticle diffusion model were selected to interpret the kinetics of adsorption. Kinetic parameters such as rate constants, equilibrium adsorption capacities and correlation coefficients were calculated and discussed for each model. Equilibrium data were linearly fitted to Langmuir, Freundlich, Tamkin, Dubinin-Radushkevich, Jovanovic, Hurkins-Jura and Halsey isotherm models. It was shown that adsorption of 2,4-D onto two carbon replicas well followed the pseudo-second order kinetic model. Langmuir isotherm represented experimental data in the best way since this model gave the best fit. Adsorption capacity strongly depends on the solution pH and increases at lower pH values. (C) 2012 Elsevier B.V. All rights reserved.",
journal = "Chemical Engineering Journal",
title = "SBA-15 templated mesoporous carbons for 2,4-dichlorophenoxyacetic acid removal",
volume = "220",
pages = "276-283",
doi = "10.1016/j.cej.2012.12.024"
}
Momčilović, M. Z., Ranđelović, M. S., Zarubica, A. R., Onjia, A. E., Kokunešoski, M.,& Matović, B. (2013). SBA-15 templated mesoporous carbons for 2,4-dichlorophenoxyacetic acid removal.
Chemical Engineering Journal, 220, 276-283.
https://doi.org/10.1016/j.cej.2012.12.024
Momčilović MZ, Ranđelović MS, Zarubica AR, Onjia AE, Kokunešoski M, Matović B. SBA-15 templated mesoporous carbons for 2,4-dichlorophenoxyacetic acid removal. Chemical Engineering Journal. 2013;220:276-283
Momčilović Milan Z., Ranđelović Marjan S., Zarubica Aleksandra R., Onjia Antonije E., Kokunešoski Maja, Matović Branko, "SBA-15 templated mesoporous carbons for 2,4-dichlorophenoxyacetic acid removal" Chemical Engineering Journal, 220 (2013):276-283,
https://doi.org/10.1016/j.cej.2012.12.024 .
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31

n-hydrocarbons conversions over metal-modified solid acid catalysts

Zarubica, Aleksandra R.; Ranđelović, Marjan S.; Momčilović, Milan Z.; Radulovic, N.; Putanov, P.

(2013)

TY  - JOUR
AU  - Zarubica, Aleksandra R.
AU  - Ranđelović, Marjan S.
AU  - Momčilović, Milan Z.
AU  - Radulovic, N.
AU  - Putanov, P.
PY  - 2013
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/5749
AB  - The quality of a straight-run fuel oil can be improved if saturated n-hydrocarbons of low octane number are converted to their branched counterparts. Poor reactivity of traditional catalysts in isomerization reactions imposed the need for the development of new catalysts among which noble metal promoted acid catalysts, liquid and/or solid acid catalysts take a prominent place. Sulfated zirconia and metal promoted sulfated zirconia exhibit high activity for the isomerization of light alkanes at low temperatures. The present paper highlights the original results which indicate that the modification of sulfated zirconia by incorporation of metals (platinum and rhenium) significantly affects catalytic performances in n-hydrocarbon conversion reactions. Favourable activity/selectivity of the promoted sulfated zirconia depends on the crystal phase composition, critical crystallites sizes, platinum dispersion, total acidity and type of acidity. Attention is also paid to the recently developed solid acid catalysts used in other conversion reactions of hydrocarbons.
T2  - Russian Journal of Physical Chemistry A
T1  - n-hydrocarbons conversions over metal-modified solid acid catalysts
VL  - 87
IS  - 13
SP  - 2166
EP  - 2175
DO  - 10.1134/S0036024413130281
ER  - 
@article{
author = "Zarubica, Aleksandra R. and Ranđelović, Marjan S. and Momčilović, Milan Z. and Radulovic, N. and Putanov, P.",
year = "2013",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/5749",
abstract = "The quality of a straight-run fuel oil can be improved if saturated n-hydrocarbons of low octane number are converted to their branched counterparts. Poor reactivity of traditional catalysts in isomerization reactions imposed the need for the development of new catalysts among which noble metal promoted acid catalysts, liquid and/or solid acid catalysts take a prominent place. Sulfated zirconia and metal promoted sulfated zirconia exhibit high activity for the isomerization of light alkanes at low temperatures. The present paper highlights the original results which indicate that the modification of sulfated zirconia by incorporation of metals (platinum and rhenium) significantly affects catalytic performances in n-hydrocarbon conversion reactions. Favourable activity/selectivity of the promoted sulfated zirconia depends on the crystal phase composition, critical crystallites sizes, platinum dispersion, total acidity and type of acidity. Attention is also paid to the recently developed solid acid catalysts used in other conversion reactions of hydrocarbons.",
journal = "Russian Journal of Physical Chemistry A",
title = "n-hydrocarbons conversions over metal-modified solid acid catalysts",
volume = "87",
number = "13",
pages = "2166-2175",
doi = "10.1134/S0036024413130281"
}
Zarubica, A. R., Ranđelović, M. S., Momčilović, M. Z., Radulovic, N.,& Putanov, P. (2013). n-hydrocarbons conversions over metal-modified solid acid catalysts.
Russian Journal of Physical Chemistry A, 87(13), 2166-2175.
https://doi.org/10.1134/S0036024413130281
Zarubica AR, Ranđelović MS, Momčilović MZ, Radulovic N, Putanov P. n-hydrocarbons conversions over metal-modified solid acid catalysts. Russian Journal of Physical Chemistry A. 2013;87(13):2166-2175
Zarubica Aleksandra R., Ranđelović Marjan S., Momčilović Milan Z., Radulovic N., Putanov P., "n-hydrocarbons conversions over metal-modified solid acid catalysts" Russian Journal of Physical Chemistry A, 87, no. 13 (2013):2166-2175,
https://doi.org/10.1134/S0036024413130281 .

Synthesis of composite by application of mixed Fe, Mg (hydr)oxides coatings onto bentonite - A use for the removal of Pb(II) from water

Ranđelović, Marjan S.; Purenović, Milovan M.; Zarubica, Aleksandra R.; Purenović, Jelena M.; Matović, Branko; Momčilović, Milan Z.

(2012)

TY  - JOUR
AU  - Ranđelović, Marjan S.
AU  - Purenović, Milovan M.
AU  - Zarubica, Aleksandra R.
AU  - Purenović, Jelena M.
AU  - Matović, Branko
AU  - Momčilović, Milan Z.
PY  - 2012
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4676
AB  - The procedure for obtaining a bentonite based composite involves the application of mixed Fe and Mg hydroxides coatings onto bentonite particles in aqueous suspension and subsequent thermal treatment of the solid phase at 498K. Structural and textural modifications of montmorillonite which occurred during the synthesis of composite were confirmed by XRD technique and N-2 adsorption at 77K. The composite structure was found to be less ordered, while its specific surface area was about two times higher than the specific surface area of the starting/native bentonite. The effectiveness of the composite in Pb(II) removal from aqueous solutions at different initial concentrations, pH and ionic strengths of the solutions was examined. The equilibrium adsorption data were analyzed using three widely applied isotherms: Langmuir, Freundlich and Dubinin-Radushkevich. The composite effectively removes both ionic and colloidal forms of Pb(II) from water and the maximum adsorption capacity obtained from the Langmuir equation was 95.88 mg/g. The main mechanisms of Pb(II) removal at low pH values were ion-exchange and outer-sphere surface complexation. (C) 2011 Elsevier B.V. All rights reserved.
T2  - Journal of Hazardous Materials
T1  - Synthesis of composite by application of mixed Fe, Mg (hydr)oxides coatings onto bentonite - A use for the removal of Pb(II) from water
VL  - 199
SP  - 367
EP  - 374
DO  - 10.1016/j.jhazmat.2011.11.025
ER  - 
@article{
author = "Ranđelović, Marjan S. and Purenović, Milovan M. and Zarubica, Aleksandra R. and Purenović, Jelena M. and Matović, Branko and Momčilović, Milan Z.",
year = "2012",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/4676",
abstract = "The procedure for obtaining a bentonite based composite involves the application of mixed Fe and Mg hydroxides coatings onto bentonite particles in aqueous suspension and subsequent thermal treatment of the solid phase at 498K. Structural and textural modifications of montmorillonite which occurred during the synthesis of composite were confirmed by XRD technique and N-2 adsorption at 77K. The composite structure was found to be less ordered, while its specific surface area was about two times higher than the specific surface area of the starting/native bentonite. The effectiveness of the composite in Pb(II) removal from aqueous solutions at different initial concentrations, pH and ionic strengths of the solutions was examined. The equilibrium adsorption data were analyzed using three widely applied isotherms: Langmuir, Freundlich and Dubinin-Radushkevich. The composite effectively removes both ionic and colloidal forms of Pb(II) from water and the maximum adsorption capacity obtained from the Langmuir equation was 95.88 mg/g. The main mechanisms of Pb(II) removal at low pH values were ion-exchange and outer-sphere surface complexation. (C) 2011 Elsevier B.V. All rights reserved.",
journal = "Journal of Hazardous Materials",
title = "Synthesis of composite by application of mixed Fe, Mg (hydr)oxides coatings onto bentonite - A use for the removal of Pb(II) from water",
volume = "199",
pages = "367-374",
doi = "10.1016/j.jhazmat.2011.11.025"
}
Ranđelović, M. S., Purenović, M. M., Zarubica, A. R., Purenović, J. M., Matović, B.,& Momčilović, M. Z. (2012). Synthesis of composite by application of mixed Fe, Mg (hydr)oxides coatings onto bentonite - A use for the removal of Pb(II) from water.
Journal of Hazardous Materials, 199, 367-374.
https://doi.org/10.1016/j.jhazmat.2011.11.025
Ranđelović MS, Purenović MM, Zarubica AR, Purenović JM, Matović B, Momčilović MZ. Synthesis of composite by application of mixed Fe, Mg (hydr)oxides coatings onto bentonite - A use for the removal of Pb(II) from water. Journal of Hazardous Materials. 2012;199:367-374
Ranđelović Marjan S., Purenović Milovan M., Zarubica Aleksandra R., Purenović Jelena M., Matović Branko, Momčilović Milan Z., "Synthesis of composite by application of mixed Fe, Mg (hydr)oxides coatings onto bentonite - A use for the removal of Pb(II) from water" Journal of Hazardous Materials, 199 (2012):367-374,
https://doi.org/10.1016/j.jhazmat.2011.11.025 .
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