Laušević, Zoran

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  • Laušević, Zoran (31)

Author's Bibliography

Hydrothermal synthesis of TiO2/carbon composites and their application for removal of organic pollutants

Maletić, Marina; Vukčević, Marija; Kalijadis, Ana; Janković-Častvan, Ivona; Dapčević, Aleksandra; Laušević, Zoran; Laušević, Mila

(Elsevier, Amsterdam, 2019)

TY  - JOUR
AU  - Maletić, Marina
AU  - Vukčević, Marija
AU  - Kalijadis, Ana
AU  - Janković-Častvan, Ivona
AU  - Dapčević, Aleksandra
AU  - Laušević, Zoran
AU  - Laušević, Mila
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4095
AB  - TiO2/carbon composites were synthesized by hydrothermal carbonization, using titanium isopropoxide and glucose precursor solution to obtain composites with Ti/C molar ratios ranging from 0.05 to 0.30. Characterization of obtained composites was performed by thermogravimetric analysis, scanning electron microscopy, nitrogen adsorption-desorption isotherms, X-ray diffraction, UV-Vis diffuse reflectance spectroscopy and Fourier transform infrared spectroscopy. The possibility of using TiO2/carbon composites as photocatalysts for UV assisted degradation of methylene blue in aqueous solution and selected pharmaceuticals from multicomponent solution was examined. It was found that increase in the glucose concentration, i.e. increased carbon content, leads to the higher porosity and increase in the share of photocatalytically active anatase phase in obtained TiO2/carbon composites. Sample obtained from the most concentrated glucose solution (TiO2/HTC4), showed the superior photocatalytic activity under UV irradiation toward both methylene blue and selected pharmaceuticals. In addition, TiO2/HTC4 show high recycling ability with degradation ratio of methylene blue higher than 81% after five cycles. Also, TiO2/HTC4 is expected to be a promising candidate for photocatalytic processes using visible light.
PB  - Elsevier, Amsterdam
T2  - Arabian Journal of Chemistry
T1  - Hydrothermal synthesis of TiO2/carbon composites and their application for removal of organic pollutants
EP  - 4397
IS  - 8
SP  - 4388
VL  - 12
DO  - 10.1016/j.arabjc.2016.06.020
ER  - 
@article{
author = "Maletić, Marina and Vukčević, Marija and Kalijadis, Ana and Janković-Častvan, Ivona and Dapčević, Aleksandra and Laušević, Zoran and Laušević, Mila",
year = "2019",
abstract = "TiO2/carbon composites were synthesized by hydrothermal carbonization, using titanium isopropoxide and glucose precursor solution to obtain composites with Ti/C molar ratios ranging from 0.05 to 0.30. Characterization of obtained composites was performed by thermogravimetric analysis, scanning electron microscopy, nitrogen adsorption-desorption isotherms, X-ray diffraction, UV-Vis diffuse reflectance spectroscopy and Fourier transform infrared spectroscopy. The possibility of using TiO2/carbon composites as photocatalysts for UV assisted degradation of methylene blue in aqueous solution and selected pharmaceuticals from multicomponent solution was examined. It was found that increase in the glucose concentration, i.e. increased carbon content, leads to the higher porosity and increase in the share of photocatalytically active anatase phase in obtained TiO2/carbon composites. Sample obtained from the most concentrated glucose solution (TiO2/HTC4), showed the superior photocatalytic activity under UV irradiation toward both methylene blue and selected pharmaceuticals. In addition, TiO2/HTC4 show high recycling ability with degradation ratio of methylene blue higher than 81% after five cycles. Also, TiO2/HTC4 is expected to be a promising candidate for photocatalytic processes using visible light.",
publisher = "Elsevier, Amsterdam",
journal = "Arabian Journal of Chemistry",
title = "Hydrothermal synthesis of TiO2/carbon composites and their application for removal of organic pollutants",
pages = "4397-4388",
number = "8",
volume = "12",
doi = "10.1016/j.arabjc.2016.06.020"
}
Maletić, M., Vukčević, M., Kalijadis, A., Janković-Častvan, I., Dapčević, A., Laušević, Z.,& Laušević, M.. (2019). Hydrothermal synthesis of TiO2/carbon composites and their application for removal of organic pollutants. in Arabian Journal of Chemistry
Elsevier, Amsterdam., 12(8), 4388-4397.
https://doi.org/10.1016/j.arabjc.2016.06.020
Maletić M, Vukčević M, Kalijadis A, Janković-Častvan I, Dapčević A, Laušević Z, Laušević M. Hydrothermal synthesis of TiO2/carbon composites and their application for removal of organic pollutants. in Arabian Journal of Chemistry. 2019;12(8):4388-4397.
doi:10.1016/j.arabjc.2016.06.020 .
Maletić, Marina, Vukčević, Marija, Kalijadis, Ana, Janković-Častvan, Ivona, Dapčević, Aleksandra, Laušević, Zoran, Laušević, Mila, "Hydrothermal synthesis of TiO2/carbon composites and their application for removal of organic pollutants" in Arabian Journal of Chemistry, 12, no. 8 (2019):4388-4397,
https://doi.org/10.1016/j.arabjc.2016.06.020 . .
49
17
43

Solid-phase extraction of multi-class pharmaceuticals from environmental water samples onto modified multi-walled carbon nanotubes followed by LC-MS/MS

Lalović, Bojana; Đurkić, Tatjana; Vukčević, Marija; Janković-Častvan, Ivona; Kalijadis, Ana; Laušević, Zoran; Laušević, Mila

(Springer Heidelberg, Heidelberg, 2017)

TY  - JOUR
AU  - Lalović, Bojana
AU  - Đurkić, Tatjana
AU  - Vukčević, Marija
AU  - Janković-Častvan, Ivona
AU  - Kalijadis, Ana
AU  - Laušević, Zoran
AU  - Laušević, Mila
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3577
AB  - In this paper, pristine and chemically treated multi-walled carbon nanotubes (MWCNTs) were employed as solid-phase extraction sorbents for the isolation and enrichment of multi-class pharmaceuticals from the surface water and groundwater, prior to liquid chromatography-tandem mass spectrometry analysis. Thirteen pharmaceuticals that belong to different therapeutical classes (erythromycin, azithromycin, sulfamethoxazole, diazepam, lorazepam, carbamazepine, metoprolol, bisoprolol, enalapril, cilazapril, simvastatin, clopidogrel, diclofenac) and two metabolites of metamizole (4-acetylaminoantipyrine and 4-formylaminoantipyrine) were selected for this study. The influence of chemical treatment on MWCNT surface characteristics and extraction efficiency was studied, and it was shown that HCl treatment of MWCNT leads to a decrease in the amount of surface oxygen groups and at the same time favorably affects the efficiency toward extraction of selected pharmaceuticals. After the optimization of the SPE procedure, the following conditions were chosen: 50 mg of HCl-treated MCWNT as a sorbent, 100 mL of water sample at pH 6, and 15 mL of the methanol-dichloromethane mixture (1:1, v/v) as eluent. Under optimal conditions, high recoveries (79-119%), as well as low detection (0.2 to 103 ng L-1) and quantitation (0.5-345 ng L-1) limits, were obtained. The optimized method was applied to the analysis of five surface water and two groundwater samples, and three pharmaceuticals were detected, the antiepileptic drug carbamazepine and two metabolites of antipyretic metamizole.
PB  - Springer Heidelberg, Heidelberg
T2  - Environmental Science and Pollution Research
T1  - Solid-phase extraction of multi-class pharmaceuticals from environmental water samples onto modified multi-walled carbon nanotubes followed by LC-MS/MS
EP  - 20793
IS  - 25
SP  - 20784
VL  - 24
DO  - 10.1007/s11356-017-9748-0
ER  - 
@article{
author = "Lalović, Bojana and Đurkić, Tatjana and Vukčević, Marija and Janković-Častvan, Ivona and Kalijadis, Ana and Laušević, Zoran and Laušević, Mila",
year = "2017",
abstract = "In this paper, pristine and chemically treated multi-walled carbon nanotubes (MWCNTs) were employed as solid-phase extraction sorbents for the isolation and enrichment of multi-class pharmaceuticals from the surface water and groundwater, prior to liquid chromatography-tandem mass spectrometry analysis. Thirteen pharmaceuticals that belong to different therapeutical classes (erythromycin, azithromycin, sulfamethoxazole, diazepam, lorazepam, carbamazepine, metoprolol, bisoprolol, enalapril, cilazapril, simvastatin, clopidogrel, diclofenac) and two metabolites of metamizole (4-acetylaminoantipyrine and 4-formylaminoantipyrine) were selected for this study. The influence of chemical treatment on MWCNT surface characteristics and extraction efficiency was studied, and it was shown that HCl treatment of MWCNT leads to a decrease in the amount of surface oxygen groups and at the same time favorably affects the efficiency toward extraction of selected pharmaceuticals. After the optimization of the SPE procedure, the following conditions were chosen: 50 mg of HCl-treated MCWNT as a sorbent, 100 mL of water sample at pH 6, and 15 mL of the methanol-dichloromethane mixture (1:1, v/v) as eluent. Under optimal conditions, high recoveries (79-119%), as well as low detection (0.2 to 103 ng L-1) and quantitation (0.5-345 ng L-1) limits, were obtained. The optimized method was applied to the analysis of five surface water and two groundwater samples, and three pharmaceuticals were detected, the antiepileptic drug carbamazepine and two metabolites of antipyretic metamizole.",
publisher = "Springer Heidelberg, Heidelberg",
journal = "Environmental Science and Pollution Research",
title = "Solid-phase extraction of multi-class pharmaceuticals from environmental water samples onto modified multi-walled carbon nanotubes followed by LC-MS/MS",
pages = "20793-20784",
number = "25",
volume = "24",
doi = "10.1007/s11356-017-9748-0"
}
Lalović, B., Đurkić, T., Vukčević, M., Janković-Častvan, I., Kalijadis, A., Laušević, Z.,& Laušević, M.. (2017). Solid-phase extraction of multi-class pharmaceuticals from environmental water samples onto modified multi-walled carbon nanotubes followed by LC-MS/MS. in Environmental Science and Pollution Research
Springer Heidelberg, Heidelberg., 24(25), 20784-20793.
https://doi.org/10.1007/s11356-017-9748-0
Lalović B, Đurkić T, Vukčević M, Janković-Častvan I, Kalijadis A, Laušević Z, Laušević M. Solid-phase extraction of multi-class pharmaceuticals from environmental water samples onto modified multi-walled carbon nanotubes followed by LC-MS/MS. in Environmental Science and Pollution Research. 2017;24(25):20784-20793.
doi:10.1007/s11356-017-9748-0 .
Lalović, Bojana, Đurkić, Tatjana, Vukčević, Marija, Janković-Častvan, Ivona, Kalijadis, Ana, Laušević, Zoran, Laušević, Mila, "Solid-phase extraction of multi-class pharmaceuticals from environmental water samples onto modified multi-walled carbon nanotubes followed by LC-MS/MS" in Environmental Science and Pollution Research, 24, no. 25 (2017):20784-20793,
https://doi.org/10.1007/s11356-017-9748-0 . .
22
15
17

Influence of the precursor chemical composition on heavy metal adsorption properties of hemp (Cannabis Sativa) fibers based biocarbon

Vukčević, Marija; Pejić, Biljana; Pajić-Lijaković, Ivana; Kalijadis, Ana; Kostić, Mirjana; Laušević, Zoran; Laušević, Mila

(Srpsko hemijsko društvo, Beograd, 2017)

TY  - JOUR
AU  - Vukčević, Marija
AU  - Pejić, Biljana
AU  - Pajić-Lijaković, Ivana
AU  - Kalijadis, Ana
AU  - Kostić, Mirjana
AU  - Laušević, Zoran
AU  - Laušević, Mila
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3641
AB  - Waste hemp (Cannabis sativa) fibers were used as sustainable and renewable raw materials for production of low-cost biocarbon sorbent for heavy metals removal. Carbon precursors of different chemical composition were obtained by oxidative and alkaline treatments of hemp fibers. Influence of lignocellulosic precursor chemical composition on hemp fibers-based biocarbon (HFB) characteristics was examined by BET surface area measurement, scanning electron microscopy and mass titration. It was found that lignin content and polymorphic transformation of cellulose increase the SBET of microporous HFBs, while hemicelluloses induce more homogeneous distribution of adsorption active sites. Heavy metal ions adsorption onto HFBs is primarily influenced by the amount of surface oxygen groups, while specific surface area plays a secondary role. Equilibrium data obtained for lead ions adsorption were analyzed by different nonlinear adsorption isotherms, and the best fitting model was chosen using standard deviation and Akaike information criterion (AIC
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Influence of the precursor chemical composition on heavy metal adsorption properties of hemp (Cannabis Sativa) fibers based biocarbon
EP  - 1431
IS  - 12
SP  - 1417
VL  - 82
DO  - 10.2298/JSC170310080V
ER  - 
@article{
author = "Vukčević, Marija and Pejić, Biljana and Pajić-Lijaković, Ivana and Kalijadis, Ana and Kostić, Mirjana and Laušević, Zoran and Laušević, Mila",
year = "2017",
abstract = "Waste hemp (Cannabis sativa) fibers were used as sustainable and renewable raw materials for production of low-cost biocarbon sorbent for heavy metals removal. Carbon precursors of different chemical composition were obtained by oxidative and alkaline treatments of hemp fibers. Influence of lignocellulosic precursor chemical composition on hemp fibers-based biocarbon (HFB) characteristics was examined by BET surface area measurement, scanning electron microscopy and mass titration. It was found that lignin content and polymorphic transformation of cellulose increase the SBET of microporous HFBs, while hemicelluloses induce more homogeneous distribution of adsorption active sites. Heavy metal ions adsorption onto HFBs is primarily influenced by the amount of surface oxygen groups, while specific surface area plays a secondary role. Equilibrium data obtained for lead ions adsorption were analyzed by different nonlinear adsorption isotherms, and the best fitting model was chosen using standard deviation and Akaike information criterion (AIC",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Influence of the precursor chemical composition on heavy metal adsorption properties of hemp (Cannabis Sativa) fibers based biocarbon",
pages = "1431-1417",
number = "12",
volume = "82",
doi = "10.2298/JSC170310080V"
}
Vukčević, M., Pejić, B., Pajić-Lijaković, I., Kalijadis, A., Kostić, M., Laušević, Z.,& Laušević, M.. (2017). Influence of the precursor chemical composition on heavy metal adsorption properties of hemp (Cannabis Sativa) fibers based biocarbon. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 82(12), 1417-1431.
https://doi.org/10.2298/JSC170310080V
Vukčević M, Pejić B, Pajić-Lijaković I, Kalijadis A, Kostić M, Laušević Z, Laušević M. Influence of the precursor chemical composition on heavy metal adsorption properties of hemp (Cannabis Sativa) fibers based biocarbon. in Journal of the Serbian Chemical Society. 2017;82(12):1417-1431.
doi:10.2298/JSC170310080V .
Vukčević, Marija, Pejić, Biljana, Pajić-Lijaković, Ivana, Kalijadis, Ana, Kostić, Mirjana, Laušević, Zoran, Laušević, Mila, "Influence of the precursor chemical composition on heavy metal adsorption properties of hemp (Cannabis Sativa) fibers based biocarbon" in Journal of the Serbian Chemical Society, 82, no. 12 (2017):1417-1431,
https://doi.org/10.2298/JSC170310080V . .
7
1
5

One-step hydrothermal synthesis of photocatalytically active TiO2/carbon composite

Maletić, Marina; Vukčević, Marija; Kalijadis, Ana; Janković-Častvan, Ivona; Dapčević, Aleksandra; Laušević, Zoran; Laušević, Mila

(Society of Physical Chemists if Serbia, 2016)

TY  - CONF
AU  - Maletić, Marina
AU  - Vukčević, Marija
AU  - Kalijadis, Ana
AU  - Janković-Častvan, Ivona
AU  - Dapčević, Aleksandra
AU  - Laušević, Zoran
AU  - Laušević, Mila
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6300
AB  - TiO2/carbon composite (TiO2/HTC), synthesized by hydrothermal
carbonization, was characterized by thermogravimetric analysis, nitrogen
adsorption–desorption isotherms and X-ray diffraction. The possibility of
using TiO2/HTC as photocatalysts for UV and visible light assisted
degradation of methylene blue in aqueous solution was examined. It was
found that carbon presence in TiO2/HTC leads to the higher porosity and
increase in the share of photocatalytically active anatase phase. Compared to
the hydrothermally synthesized TiO2, TiO2/HTC showed the superior
photocatalytic activity under UV irradiation. In addition, TiO2/HTC show
high recycling ability with degradation ratio of methylene blue higher than
81 % after five cycles. Also, TiO2/HTC is expected to be a promising
candidate for photocatalytic processes using visible light.
PB  - Society of Physical Chemists if Serbia
C3  - 13th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Proceedings
T1  - One-step hydrothermal synthesis of photocatalytically active TiO2/carbon composite
EP  - 238
SP  - 235
VL  - 1
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6300
ER  - 
@conference{
author = "Maletić, Marina and Vukčević, Marija and Kalijadis, Ana and Janković-Častvan, Ivona and Dapčević, Aleksandra and Laušević, Zoran and Laušević, Mila",
year = "2016",
abstract = "TiO2/carbon composite (TiO2/HTC), synthesized by hydrothermal
carbonization, was characterized by thermogravimetric analysis, nitrogen
adsorption–desorption isotherms and X-ray diffraction. The possibility of
using TiO2/HTC as photocatalysts for UV and visible light assisted
degradation of methylene blue in aqueous solution was examined. It was
found that carbon presence in TiO2/HTC leads to the higher porosity and
increase in the share of photocatalytically active anatase phase. Compared to
the hydrothermally synthesized TiO2, TiO2/HTC showed the superior
photocatalytic activity under UV irradiation. In addition, TiO2/HTC show
high recycling ability with degradation ratio of methylene blue higher than
81 % after five cycles. Also, TiO2/HTC is expected to be a promising
candidate for photocatalytic processes using visible light.",
publisher = "Society of Physical Chemists if Serbia",
journal = "13th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Proceedings",
title = "One-step hydrothermal synthesis of photocatalytically active TiO2/carbon composite",
pages = "238-235",
volume = "1",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6300"
}
Maletić, M., Vukčević, M., Kalijadis, A., Janković-Častvan, I., Dapčević, A., Laušević, Z.,& Laušević, M.. (2016). One-step hydrothermal synthesis of photocatalytically active TiO2/carbon composite. in 13th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Proceedings
Society of Physical Chemists if Serbia., 1, 235-238.
https://hdl.handle.net/21.15107/rcub_technorep_6300
Maletić M, Vukčević M, Kalijadis A, Janković-Častvan I, Dapčević A, Laušević Z, Laušević M. One-step hydrothermal synthesis of photocatalytically active TiO2/carbon composite. in 13th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Proceedings. 2016;1:235-238.
https://hdl.handle.net/21.15107/rcub_technorep_6300 .
Maletić, Marina, Vukčević, Marija, Kalijadis, Ana, Janković-Častvan, Ivona, Dapčević, Aleksandra, Laušević, Zoran, Laušević, Mila, "One-step hydrothermal synthesis of photocatalytically active TiO2/carbon composite" in 13th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Proceedings, 1 (2016):235-238,
https://hdl.handle.net/21.15107/rcub_technorep_6300 .

Preparation of boron-doped hydrothermal carbon from glucose for carbon paste electrode

Kalijadis, Ana; Đorđević, Jelena S.; Trtić-Petrović, Tatjana M.; Vukčević, Marija; Popović, Maja; Maksimović, Vesna; Rakočević, Zlatko Lj.; Laušević, Zoran

(Pergamon-Elsevier Science Ltd, Oxford, 2015)

TY  - JOUR
AU  - Kalijadis, Ana
AU  - Đorđević, Jelena S.
AU  - Trtić-Petrović, Tatjana M.
AU  - Vukčević, Marija
AU  - Popović, Maja
AU  - Maksimović, Vesna
AU  - Rakočević, Zlatko Lj.
AU  - Laušević, Zoran
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3074
AB  - Boron doped hydrothermal carbon microspheres were synthesized by introducing boric acid into glucose precursor solution to obtain boron concentration from 0.1 to 1 wt. %. Following hydrothermal treatment, samples were thermally treated to 1000 degrees C. For obtained samples structural and surface characterization were performed. Characterization of obtained samples as material for carbon paste electrode was achieved by measurement of the Fe (CN)(6)(3-/4-) redox couple and linuron determination. Catalytic effect of boric acid on hydrothermal reaction induced enlargement of particle size for boron doped samples. Significant reduction of specific surface area for samples with highest boron concentration was observed. Boron was substitutionally incorporated in the structure of doped samples and incorporation up to 0.6 wt. % in precursor solution generates structure ordering, which induces a reduction of surface active sites for oxygen adsorption in a greater extent. It was found that modified structural and surface characteristics are responsible for good electron transfer property of carbon paste electrode based on doped samples with nominal boron concentration range from 0.2 to 0.6 wt. %. However, it has been shown that sample with nominal boron concentration of 0.2 wt. % proved to be most promising candidate as a material for carbon paste electrode.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Carbon
T1  - Preparation of boron-doped hydrothermal carbon from glucose for carbon paste electrode
EP  - 50
SP  - 42
VL  - 95
DO  - 10.1016/j.carbon.2015.08.016
ER  - 
@article{
author = "Kalijadis, Ana and Đorđević, Jelena S. and Trtić-Petrović, Tatjana M. and Vukčević, Marija and Popović, Maja and Maksimović, Vesna and Rakočević, Zlatko Lj. and Laušević, Zoran",
year = "2015",
abstract = "Boron doped hydrothermal carbon microspheres were synthesized by introducing boric acid into glucose precursor solution to obtain boron concentration from 0.1 to 1 wt. %. Following hydrothermal treatment, samples were thermally treated to 1000 degrees C. For obtained samples structural and surface characterization were performed. Characterization of obtained samples as material for carbon paste electrode was achieved by measurement of the Fe (CN)(6)(3-/4-) redox couple and linuron determination. Catalytic effect of boric acid on hydrothermal reaction induced enlargement of particle size for boron doped samples. Significant reduction of specific surface area for samples with highest boron concentration was observed. Boron was substitutionally incorporated in the structure of doped samples and incorporation up to 0.6 wt. % in precursor solution generates structure ordering, which induces a reduction of surface active sites for oxygen adsorption in a greater extent. It was found that modified structural and surface characteristics are responsible for good electron transfer property of carbon paste electrode based on doped samples with nominal boron concentration range from 0.2 to 0.6 wt. %. However, it has been shown that sample with nominal boron concentration of 0.2 wt. % proved to be most promising candidate as a material for carbon paste electrode.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Carbon",
title = "Preparation of boron-doped hydrothermal carbon from glucose for carbon paste electrode",
pages = "50-42",
volume = "95",
doi = "10.1016/j.carbon.2015.08.016"
}
Kalijadis, A., Đorđević, J. S., Trtić-Petrović, T. M., Vukčević, M., Popović, M., Maksimović, V., Rakočević, Z. Lj.,& Laušević, Z.. (2015). Preparation of boron-doped hydrothermal carbon from glucose for carbon paste electrode. in Carbon
Pergamon-Elsevier Science Ltd, Oxford., 95, 42-50.
https://doi.org/10.1016/j.carbon.2015.08.016
Kalijadis A, Đorđević JS, Trtić-Petrović TM, Vukčević M, Popović M, Maksimović V, Rakočević ZL, Laušević Z. Preparation of boron-doped hydrothermal carbon from glucose for carbon paste electrode. in Carbon. 2015;95:42-50.
doi:10.1016/j.carbon.2015.08.016 .
Kalijadis, Ana, Đorđević, Jelena S., Trtić-Petrović, Tatjana M., Vukčević, Marija, Popović, Maja, Maksimović, Vesna, Rakočević, Zlatko Lj., Laušević, Zoran, "Preparation of boron-doped hydrothermal carbon from glucose for carbon paste electrode" in Carbon, 95 (2015):42-50,
https://doi.org/10.1016/j.carbon.2015.08.016 . .
39
27
36

Photocatalytic Performance of Carbon Monolith/TiO2 Composite

Maletić, Marina; Vukčević, Marija; Kalijadis, Ana; Laušević, Zoran; Laušević, Mila

(Hindawi Ltd, London, 2015)

TY  - JOUR
AU  - Maletić, Marina
AU  - Vukčević, Marija
AU  - Kalijadis, Ana
AU  - Laušević, Zoran
AU  - Laušević, Mila
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3123
AB  - The new and simple approach for deposition of catalytically active TiO2 coating on carbon monolith (CM) carrier was presented. CM photocatalysts were impregnated with TiO2 using titanium solution and thermal treatment, and their photocatalytic activity was investigated in the process of methylene blue (MB) photodegradation. For the purpose of comparison, CM composite photocatalysts were prepared by dip-coating method, which implies binder usage. The presence of TiO2 on CM carrier was confirmed by Raman spectroscopy and scanning electron microscopy. The sorption characteristics of CM and the role of adsorption in the overall process of MB removal were evaluated through amount of surface oxygen groups obtained by temperature-programmed desorption and specific surface area determined by BET method. CM has shown good adsorption properties toward MB due to high amount of surface oxygen groups and relatively high specific surface area. It was concluded that photocatalytic activity increases with CM disc thickness due to increase of MB adsorption and amount of deposited TiO2. Good photocatalytic activity achieved for samples obtained by thermal treatment is the result of better accessibility of MB solution to the TiO2 particles induced by binder absence.
PB  - Hindawi Ltd, London
T2  - Advances in Materials Science and Engineering
T1  - Photocatalytic Performance of Carbon Monolith/TiO2 Composite
VL  - 2015
DO  - 10.1155/2015/803492
ER  - 
@article{
author = "Maletić, Marina and Vukčević, Marija and Kalijadis, Ana and Laušević, Zoran and Laušević, Mila",
year = "2015",
abstract = "The new and simple approach for deposition of catalytically active TiO2 coating on carbon monolith (CM) carrier was presented. CM photocatalysts were impregnated with TiO2 using titanium solution and thermal treatment, and their photocatalytic activity was investigated in the process of methylene blue (MB) photodegradation. For the purpose of comparison, CM composite photocatalysts were prepared by dip-coating method, which implies binder usage. The presence of TiO2 on CM carrier was confirmed by Raman spectroscopy and scanning electron microscopy. The sorption characteristics of CM and the role of adsorption in the overall process of MB removal were evaluated through amount of surface oxygen groups obtained by temperature-programmed desorption and specific surface area determined by BET method. CM has shown good adsorption properties toward MB due to high amount of surface oxygen groups and relatively high specific surface area. It was concluded that photocatalytic activity increases with CM disc thickness due to increase of MB adsorption and amount of deposited TiO2. Good photocatalytic activity achieved for samples obtained by thermal treatment is the result of better accessibility of MB solution to the TiO2 particles induced by binder absence.",
publisher = "Hindawi Ltd, London",
journal = "Advances in Materials Science and Engineering",
title = "Photocatalytic Performance of Carbon Monolith/TiO2 Composite",
volume = "2015",
doi = "10.1155/2015/803492"
}
Maletić, M., Vukčević, M., Kalijadis, A., Laušević, Z.,& Laušević, M.. (2015). Photocatalytic Performance of Carbon Monolith/TiO2 Composite. in Advances in Materials Science and Engineering
Hindawi Ltd, London., 2015.
https://doi.org/10.1155/2015/803492
Maletić M, Vukčević M, Kalijadis A, Laušević Z, Laušević M. Photocatalytic Performance of Carbon Monolith/TiO2 Composite. in Advances in Materials Science and Engineering. 2015;2015.
doi:10.1155/2015/803492 .
Maletić, Marina, Vukčević, Marija, Kalijadis, Ana, Laušević, Zoran, Laušević, Mila, "Photocatalytic Performance of Carbon Monolith/TiO2 Composite" in Advances in Materials Science and Engineering, 2015 (2015),
https://doi.org/10.1155/2015/803492 . .
3
1
3

Production of activated carbon derived from waste hemp (Cannabis sativa) fibers and its performance in pesticide adsorption

Vukčević, Marija; Kalijadis, Ana; Vasiljević, Tatjana; Babić, Biljana M.; Laušević, Zoran; Laušević, Mila

(Elsevier, Amsterdam, 2015)

TY  - JOUR
AU  - Vukčević, Marija
AU  - Kalijadis, Ana
AU  - Vasiljević, Tatjana
AU  - Babić, Biljana M.
AU  - Laušević, Zoran
AU  - Laušević, Mila
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3127
AB  - The main objective of this work was to find optimal production parameters for the preparation of activated hemp fibers (ACh) with good adsorption properties toward pesticides. In order to examine the role of manufacturing parameters on ACh surface characteristics, activation process of carbonized hemp fibers was investigated by temperature programmed reaction and evolved gaseous products of activation were monitored by mass spectrometry. ACh samples were characterized by BET surface area, scanning electron microscopy and temperature-programmed desorption. KOH activation induces the reduction of oxygen groups existing on the carbonized hemp fiber surface and the formation of the more stable, predominantly anhydride groups, while porosity development correlates with both H-2 and CO, evolved during the activation, and increases with carbonization and activation temperature. Finally, the highest efficiency in pesticides removal was achieved by carbonization of waste hemp fibers and activation at 900 degrees C with KOH/carbonized material ratio of 2/1. High efficiency in pesticides removal indicates that activated hemp fibers could be successfully used as a sorbent in water purification.
PB  - Elsevier, Amsterdam
T2  - Microporous and Mesoporous Materials
T1  - Production of activated carbon derived from waste hemp (Cannabis sativa) fibers and its performance in pesticide adsorption
EP  - 165
SP  - 156
VL  - 214
DO  - 10.1016/j.micromeso.2015.05.012
ER  - 
@article{
author = "Vukčević, Marija and Kalijadis, Ana and Vasiljević, Tatjana and Babić, Biljana M. and Laušević, Zoran and Laušević, Mila",
year = "2015",
abstract = "The main objective of this work was to find optimal production parameters for the preparation of activated hemp fibers (ACh) with good adsorption properties toward pesticides. In order to examine the role of manufacturing parameters on ACh surface characteristics, activation process of carbonized hemp fibers was investigated by temperature programmed reaction and evolved gaseous products of activation were monitored by mass spectrometry. ACh samples were characterized by BET surface area, scanning electron microscopy and temperature-programmed desorption. KOH activation induces the reduction of oxygen groups existing on the carbonized hemp fiber surface and the formation of the more stable, predominantly anhydride groups, while porosity development correlates with both H-2 and CO, evolved during the activation, and increases with carbonization and activation temperature. Finally, the highest efficiency in pesticides removal was achieved by carbonization of waste hemp fibers and activation at 900 degrees C with KOH/carbonized material ratio of 2/1. High efficiency in pesticides removal indicates that activated hemp fibers could be successfully used as a sorbent in water purification.",
publisher = "Elsevier, Amsterdam",
journal = "Microporous and Mesoporous Materials",
title = "Production of activated carbon derived from waste hemp (Cannabis sativa) fibers and its performance in pesticide adsorption",
pages = "165-156",
volume = "214",
doi = "10.1016/j.micromeso.2015.05.012"
}
Vukčević, M., Kalijadis, A., Vasiljević, T., Babić, B. M., Laušević, Z.,& Laušević, M.. (2015). Production of activated carbon derived from waste hemp (Cannabis sativa) fibers and its performance in pesticide adsorption. in Microporous and Mesoporous Materials
Elsevier, Amsterdam., 214, 156-165.
https://doi.org/10.1016/j.micromeso.2015.05.012
Vukčević M, Kalijadis A, Vasiljević T, Babić BM, Laušević Z, Laušević M. Production of activated carbon derived from waste hemp (Cannabis sativa) fibers and its performance in pesticide adsorption. in Microporous and Mesoporous Materials. 2015;214:156-165.
doi:10.1016/j.micromeso.2015.05.012 .
Vukčević, Marija, Kalijadis, Ana, Vasiljević, Tatjana, Babić, Biljana M., Laušević, Zoran, Laušević, Mila, "Production of activated carbon derived from waste hemp (Cannabis sativa) fibers and its performance in pesticide adsorption" in Microporous and Mesoporous Materials, 214 (2015):156-165,
https://doi.org/10.1016/j.micromeso.2015.05.012 . .
1
76
47
75

Hemp (Cannabis sativa) fibers as biosorbents and precursor for carbon sorbent production

Pejić, Biljana; Vukčević, Marija; Kalijadis, Ana; Laušević, Zoran; Laušević, Mila; Kostić, Mirjana

(Union of Textile Engineers and Technicians of Serbia, Belgrade, 2015)

TY  - JOUR
AU  - Pejić, Biljana
AU  - Vukčević, Marija
AU  - Kalijadis, Ana
AU  - Laušević, Zoran
AU  - Laušević, Mila
AU  - Kostić, Mirjana
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2932
AB  - Short and entangled hemp fibers, obtained as a waste from textile industry, were used as effici­ent biosorbent and low-cost precursor for carbon sorbent production. In order to obtain the biosorbents with better sorption properties, short hemp fibers were chemically modified. Also, chemical modification were used in order to attain the appropriate specific structure of hemp fibers based carbon precursor, that promote the formation of the required porosity and surface chemistry of the biocarbon to facilitate adsorption. Used hemp fibers based sorbents were characterized through the specific surface area, amount of surface functional gro­ups and pH of the point of zero charge. Sorption efficiency of hemp fibers based sorbents were tested through the adsorption of cadmium from water solution. Adsorption data will be used for development of filters based on hemp fibers and carbonized hemp fibers forpurification of water polluted with heavy metals.
AB  - Kratka i zamršena vlakna konoplje, dobijena kao otpad u tekstilnoj industriji, korišćena su kao biosorbenti i jeftina sirovina za proizvodnju ugljeničnih sorbenata. Hemijsko modifikovanje vlakana konoplje izvršeno je u cilju poboljšanja sorpcionih svojstava biosorbenta, i optimizacije hemijskog sastava i strukture prekursora za dobijanje efikasnih ugljeničnih sorbenata. Karakterizacija biosorbenata i ugljeničnih sorbenata izvršena je određivanjem specifične površine i količine funkcionalnih grupaprisutnih na njihovojpovršini, kao i određivanjem pH vrednosti tačke nultog naelektrisanja. Efikasnost dobijenih sorbenata ispitana je adsorpci- jom jona kadmijuma iz vodenog rastvora. Vrednosti dobijene ispitivanjem kinetike adsorpcije jona kadmijuma, kao i vrednosti ravnotežnih sorpcionih kapaciteta, biće iskorišćeni u svrhu razvoja filtera za prečišćavanje otpadnih voda, na bazi hemijski modifikovanih i karbonizovanih vlakana konoplje.
PB  - Union of Textile Engineers and Technicians of Serbia, Belgrade
T2  - Tekstilna industrija
T1  - Hemp (Cannabis sativa) fibers as biosorbents and precursor for carbon sorbent production
T1  - Vlakna konoplje (Cannabis sativa) kao biosorbenti i sirovine za proizvodnju ugljeničnih sorbenata
EP  - 46
IS  - 1
SP  - 41
VL  - 63
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2932
ER  - 
@article{
author = "Pejić, Biljana and Vukčević, Marija and Kalijadis, Ana and Laušević, Zoran and Laušević, Mila and Kostić, Mirjana",
year = "2015",
abstract = "Short and entangled hemp fibers, obtained as a waste from textile industry, were used as effici­ent biosorbent and low-cost precursor for carbon sorbent production. In order to obtain the biosorbents with better sorption properties, short hemp fibers were chemically modified. Also, chemical modification were used in order to attain the appropriate specific structure of hemp fibers based carbon precursor, that promote the formation of the required porosity and surface chemistry of the biocarbon to facilitate adsorption. Used hemp fibers based sorbents were characterized through the specific surface area, amount of surface functional gro­ups and pH of the point of zero charge. Sorption efficiency of hemp fibers based sorbents were tested through the adsorption of cadmium from water solution. Adsorption data will be used for development of filters based on hemp fibers and carbonized hemp fibers forpurification of water polluted with heavy metals., Kratka i zamršena vlakna konoplje, dobijena kao otpad u tekstilnoj industriji, korišćena su kao biosorbenti i jeftina sirovina za proizvodnju ugljeničnih sorbenata. Hemijsko modifikovanje vlakana konoplje izvršeno je u cilju poboljšanja sorpcionih svojstava biosorbenta, i optimizacije hemijskog sastava i strukture prekursora za dobijanje efikasnih ugljeničnih sorbenata. Karakterizacija biosorbenata i ugljeničnih sorbenata izvršena je određivanjem specifične površine i količine funkcionalnih grupaprisutnih na njihovojpovršini, kao i određivanjem pH vrednosti tačke nultog naelektrisanja. Efikasnost dobijenih sorbenata ispitana je adsorpci- jom jona kadmijuma iz vodenog rastvora. Vrednosti dobijene ispitivanjem kinetike adsorpcije jona kadmijuma, kao i vrednosti ravnotežnih sorpcionih kapaciteta, biće iskorišćeni u svrhu razvoja filtera za prečišćavanje otpadnih voda, na bazi hemijski modifikovanih i karbonizovanih vlakana konoplje.",
publisher = "Union of Textile Engineers and Technicians of Serbia, Belgrade",
journal = "Tekstilna industrija",
title = "Hemp (Cannabis sativa) fibers as biosorbents and precursor for carbon sorbent production, Vlakna konoplje (Cannabis sativa) kao biosorbenti i sirovine za proizvodnju ugljeničnih sorbenata",
pages = "46-41",
number = "1",
volume = "63",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2932"
}
Pejić, B., Vukčević, M., Kalijadis, A., Laušević, Z., Laušević, M.,& Kostić, M.. (2015). Hemp (Cannabis sativa) fibers as biosorbents and precursor for carbon sorbent production. in Tekstilna industrija
Union of Textile Engineers and Technicians of Serbia, Belgrade., 63(1), 41-46.
https://hdl.handle.net/21.15107/rcub_technorep_2932
Pejić B, Vukčević M, Kalijadis A, Laušević Z, Laušević M, Kostić M. Hemp (Cannabis sativa) fibers as biosorbents and precursor for carbon sorbent production. in Tekstilna industrija. 2015;63(1):41-46.
https://hdl.handle.net/21.15107/rcub_technorep_2932 .
Pejić, Biljana, Vukčević, Marija, Kalijadis, Ana, Laušević, Zoran, Laušević, Mila, Kostić, Mirjana, "Hemp (Cannabis sativa) fibers as biosorbents and precursor for carbon sorbent production" in Tekstilna industrija, 63, no. 1 (2015):41-46,
https://hdl.handle.net/21.15107/rcub_technorep_2932 .

Activated carbon materials derived from hemp fibers in pesticide adsorption and water disinfection

Vukčević, Marija; Pejić, Biljana; Kalijadis, Ana; Laušević, Zoran; Laušević, Mila; Kostić, Mirjana

(Union of Textile Engineers and Technicians of Serbia, Belgrade, 2015)

TY  - JOUR
AU  - Vukčević, Marija
AU  - Pejić, Biljana
AU  - Kalijadis, Ana
AU  - Laušević, Zoran
AU  - Laušević, Mila
AU  - Kostić, Mirjana
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2933
AB  - By varying the parameters of carbonization and activation, different samples of hemp fibers based activated carbon were obtained. Optimal production conditions were selected based on the adsorption properties of activated hemp fibers toward pesticides. Therefore, the influence of production conditions on the specific surface area, measured by dynamic method, and adsorption characteristics of activated hemp fibers toward different pesticides (acetamiprid, dimethoate, carbofuran and atrazine) was examined. Decrease of pesticide concentration, as a consequence of the adsorption, was determined by liquid chromatography-tandem mass spectrometry technique. Based on obtained results, an efficient pesticides sorbent can be produced using: carbonization temperature of 1000 oC, activated agent/carbon material ratio of 2/1 and activation temperature of 900 oC. Additionally, activated hemp fibers impregnated with silver proved to be suitable for water disinfection due to the strong antimicrobial activity against Escherichia coli, Staphylococcus aureus and Candida albicans.
AB  - Variranjem parametara karbonizacije i aktivacije dobijeni su uzorci aktiviranih ugljeničnih materijala na bazi vlakana konoplje, a optimalni parametri dobijanja izabrani su na osnovu efikasnosti uklanjanja pesticida iz vodenih rastvora. Ispitan je uticaj parametara dobijanja, kako na specifičnu površinu aktiviranih vlakana konoplje, merenu dinamičkom metodom, tako i na efikasnost dobijenih uzoraka u adsorpciji pesticida: acetamiprida, dimetoata, karbofurana i atrazina. Koncentracija pesticida u rastvoru određivana je metodom tečne hromatografije u kombinaciji sa tandem masenom spektrometrijom. Kao optimalni parametri za dobijanje efikasnih sorbenata za uklanjanje pesticida odabrani su: temperatura karbonizacije od 1000oC, odnos aktivacioni agens: karbonizovani materijal - 2:1 i temperatura aktivacije od 900oC. Takođe, aktivirana vlakna konoplje impregnisana srebrom pokazuju jako antimikrobno dejstvo na smešu Escherichia coli, Staphylococcus aureus i Candida albicans, pa se ovi materijali mogu koristiti i za dezinfekciju zagađene vode.
PB  - Union of Textile Engineers and Technicians of Serbia, Belgrade
T2  - Tekstilna industrija
T1  - Activated carbon materials derived from hemp fibers in pesticide adsorption and water disinfection
T1  - Adsorpcija pesticida i dezinfekcija vode aktiviranim ugljeničnim materijalima na bazi vlakana konoplje
EP  - 20
IS  - 1
SP  - 15
VL  - 63
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2933
ER  - 
@article{
author = "Vukčević, Marija and Pejić, Biljana and Kalijadis, Ana and Laušević, Zoran and Laušević, Mila and Kostić, Mirjana",
year = "2015",
abstract = "By varying the parameters of carbonization and activation, different samples of hemp fibers based activated carbon were obtained. Optimal production conditions were selected based on the adsorption properties of activated hemp fibers toward pesticides. Therefore, the influence of production conditions on the specific surface area, measured by dynamic method, and adsorption characteristics of activated hemp fibers toward different pesticides (acetamiprid, dimethoate, carbofuran and atrazine) was examined. Decrease of pesticide concentration, as a consequence of the adsorption, was determined by liquid chromatography-tandem mass spectrometry technique. Based on obtained results, an efficient pesticides sorbent can be produced using: carbonization temperature of 1000 oC, activated agent/carbon material ratio of 2/1 and activation temperature of 900 oC. Additionally, activated hemp fibers impregnated with silver proved to be suitable for water disinfection due to the strong antimicrobial activity against Escherichia coli, Staphylococcus aureus and Candida albicans., Variranjem parametara karbonizacije i aktivacije dobijeni su uzorci aktiviranih ugljeničnih materijala na bazi vlakana konoplje, a optimalni parametri dobijanja izabrani su na osnovu efikasnosti uklanjanja pesticida iz vodenih rastvora. Ispitan je uticaj parametara dobijanja, kako na specifičnu površinu aktiviranih vlakana konoplje, merenu dinamičkom metodom, tako i na efikasnost dobijenih uzoraka u adsorpciji pesticida: acetamiprida, dimetoata, karbofurana i atrazina. Koncentracija pesticida u rastvoru određivana je metodom tečne hromatografije u kombinaciji sa tandem masenom spektrometrijom. Kao optimalni parametri za dobijanje efikasnih sorbenata za uklanjanje pesticida odabrani su: temperatura karbonizacije od 1000oC, odnos aktivacioni agens: karbonizovani materijal - 2:1 i temperatura aktivacije od 900oC. Takođe, aktivirana vlakna konoplje impregnisana srebrom pokazuju jako antimikrobno dejstvo na smešu Escherichia coli, Staphylococcus aureus i Candida albicans, pa se ovi materijali mogu koristiti i za dezinfekciju zagađene vode.",
publisher = "Union of Textile Engineers and Technicians of Serbia, Belgrade",
journal = "Tekstilna industrija",
title = "Activated carbon materials derived from hemp fibers in pesticide adsorption and water disinfection, Adsorpcija pesticida i dezinfekcija vode aktiviranim ugljeničnim materijalima na bazi vlakana konoplje",
pages = "20-15",
number = "1",
volume = "63",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2933"
}
Vukčević, M., Pejić, B., Kalijadis, A., Laušević, Z., Laušević, M.,& Kostić, M.. (2015). Activated carbon materials derived from hemp fibers in pesticide adsorption and water disinfection. in Tekstilna industrija
Union of Textile Engineers and Technicians of Serbia, Belgrade., 63(1), 15-20.
https://hdl.handle.net/21.15107/rcub_technorep_2933
Vukčević M, Pejić B, Kalijadis A, Laušević Z, Laušević M, Kostić M. Activated carbon materials derived from hemp fibers in pesticide adsorption and water disinfection. in Tekstilna industrija. 2015;63(1):15-20.
https://hdl.handle.net/21.15107/rcub_technorep_2933 .
Vukčević, Marija, Pejić, Biljana, Kalijadis, Ana, Laušević, Zoran, Laušević, Mila, Kostić, Mirjana, "Activated carbon materials derived from hemp fibers in pesticide adsorption and water disinfection" in Tekstilna industrija, 63, no. 1 (2015):15-20,
https://hdl.handle.net/21.15107/rcub_technorep_2933 .

Thermal treatment influence on the surface characteristics of the boron-doped hydrothermal carbon

Kalijadis, Ana; Vukčević, Marija; Maletić, Marina; Laušević, Mila; Laušević, Zoran

(Society of Physical Chemists of Serbia, 2014)

TY  - CONF
AU  - Kalijadis, Ana
AU  - Vukčević, Marija
AU  - Maletić, Marina
AU  - Laušević, Mila
AU  - Laušević, Zoran
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6301
AB  - Boron-doped carbons were produced using hydrothermal carbonization of
glucose carbohydrates under mild temperature (180oC). Boric acid was
introduced into glucose precursor solution in order to obtained boron
concentration of 0.2% and 1%. Two types of samples were prepared:
hydrothermal carbons (HTC) and hydrothermal carbons thermally treated to
1000oC (HTCc). Characterization of the samples obtained was performed by
scanning electron microscopy (SEM) and Fourier Transform Infrared
Spectroscopy (FTIR). SEM analysis showed that higher boron concentration
in the precursor solution caused enlargement of particle size for both type of
samples, while the thermal treatment induced decrease of particle size. FTIR
spectra showed that the different amount of boron in the precursor solution
induced quite diverse effects on the surface chemistry of hydrothermal
carbons before and after the thermal treatment.
PB  - Society of Physical Chemists of Serbia
C3  - 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Proceedings
T1  - Thermal treatment influence on the surface characteristics of the boron-doped hydrothermal carbon
EP  - 682
SP  - 679
VL  - 1
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6301
ER  - 
@conference{
author = "Kalijadis, Ana and Vukčević, Marija and Maletić, Marina and Laušević, Mila and Laušević, Zoran",
year = "2014",
abstract = "Boron-doped carbons were produced using hydrothermal carbonization of
glucose carbohydrates under mild temperature (180oC). Boric acid was
introduced into glucose precursor solution in order to obtained boron
concentration of 0.2% and 1%. Two types of samples were prepared:
hydrothermal carbons (HTC) and hydrothermal carbons thermally treated to
1000oC (HTCc). Characterization of the samples obtained was performed by
scanning electron microscopy (SEM) and Fourier Transform Infrared
Spectroscopy (FTIR). SEM analysis showed that higher boron concentration
in the precursor solution caused enlargement of particle size for both type of
samples, while the thermal treatment induced decrease of particle size. FTIR
spectra showed that the different amount of boron in the precursor solution
induced quite diverse effects on the surface chemistry of hydrothermal
carbons before and after the thermal treatment.",
publisher = "Society of Physical Chemists of Serbia",
journal = "12th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Proceedings",
title = "Thermal treatment influence on the surface characteristics of the boron-doped hydrothermal carbon",
pages = "682-679",
volume = "1",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6301"
}
Kalijadis, A., Vukčević, M., Maletić, M., Laušević, M.,& Laušević, Z.. (2014). Thermal treatment influence on the surface characteristics of the boron-doped hydrothermal carbon. in 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Proceedings
Society of Physical Chemists of Serbia., 1, 679-682.
https://hdl.handle.net/21.15107/rcub_technorep_6301
Kalijadis A, Vukčević M, Maletić M, Laušević M, Laušević Z. Thermal treatment influence on the surface characteristics of the boron-doped hydrothermal carbon. in 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Proceedings. 2014;1:679-682.
https://hdl.handle.net/21.15107/rcub_technorep_6301 .
Kalijadis, Ana, Vukčević, Marija, Maletić, Marina, Laušević, Mila, Laušević, Zoran, "Thermal treatment influence on the surface characteristics of the boron-doped hydrothermal carbon" in 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Proceedings, 1 (2014):679-682,
https://hdl.handle.net/21.15107/rcub_technorep_6301 .

Carbon materials from waste short hemp fibers as a sorbent for heavy metal ions - Mathematical modeling of sorbent structure and ions transport

Vukčević, Marija; Pejić, Biljana; Kalijadis, Ana; Pajić-Lijaković, Ivana; Kostić, Mirjana; Laušević, Zoran; Laušević, Mila

(Elsevier Science Sa, Lausanne, 2014)

TY  - JOUR
AU  - Vukčević, Marija
AU  - Pejić, Biljana
AU  - Kalijadis, Ana
AU  - Pajić-Lijaković, Ivana
AU  - Kostić, Mirjana
AU  - Laušević, Zoran
AU  - Laušević, Mila
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2755
AB  - Carbonized hemp fibers obtained by carbonization of origin and chemically modified waste hemp fibers was used as a low-cost sorbent for heavy metals removal. The efficiency of carbonized hemp fiber samples as a sorbent was tested through the adsorption of lead ions as a heavy metal model ion. Although changes in carbon precursor structure, induced by chemical modification, affect the sorption process and sorption capacity of carbonized hemp fibers, all carbonized hemp fibers samples show good adsorption properties toward lead ions. Obtained experimental data was used for development of the mathematical model that describes both the phenomenon of metal ions transport through the porous sorbent matrices, and the structure of carbonized hemp fibers. Effective diffusion coefficient, damping coefficient and the lead ion concentration profile within the carbonized hemp fibers, obtained as results of proposed mathematical model, give the insight in the mechanism and the rate of adsorption process, while average tortuosity connected the sorbent structure and ions transport through the sorbent. A good agreement between model prediction for both structural and ion transport model parameters and the experimental data, indicates that the proposed mathematical model can be successfully used for optimization of heavy metal ions adsorption process by correlating the model parameters to the carbonized hemp fibers performances.
PB  - Elsevier Science Sa, Lausanne
T2  - Chemical Engineering Journal
T1  - Carbon materials from waste short hemp fibers as a sorbent for heavy metal ions - Mathematical modeling of sorbent structure and ions transport
EP  - 292
SP  - 284
VL  - 235
DO  - 10.1016/j.cej.2013.09.047
ER  - 
@article{
author = "Vukčević, Marija and Pejić, Biljana and Kalijadis, Ana and Pajić-Lijaković, Ivana and Kostić, Mirjana and Laušević, Zoran and Laušević, Mila",
year = "2014",
abstract = "Carbonized hemp fibers obtained by carbonization of origin and chemically modified waste hemp fibers was used as a low-cost sorbent for heavy metals removal. The efficiency of carbonized hemp fiber samples as a sorbent was tested through the adsorption of lead ions as a heavy metal model ion. Although changes in carbon precursor structure, induced by chemical modification, affect the sorption process and sorption capacity of carbonized hemp fibers, all carbonized hemp fibers samples show good adsorption properties toward lead ions. Obtained experimental data was used for development of the mathematical model that describes both the phenomenon of metal ions transport through the porous sorbent matrices, and the structure of carbonized hemp fibers. Effective diffusion coefficient, damping coefficient and the lead ion concentration profile within the carbonized hemp fibers, obtained as results of proposed mathematical model, give the insight in the mechanism and the rate of adsorption process, while average tortuosity connected the sorbent structure and ions transport through the sorbent. A good agreement between model prediction for both structural and ion transport model parameters and the experimental data, indicates that the proposed mathematical model can be successfully used for optimization of heavy metal ions adsorption process by correlating the model parameters to the carbonized hemp fibers performances.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Chemical Engineering Journal",
title = "Carbon materials from waste short hemp fibers as a sorbent for heavy metal ions - Mathematical modeling of sorbent structure and ions transport",
pages = "292-284",
volume = "235",
doi = "10.1016/j.cej.2013.09.047"
}
Vukčević, M., Pejić, B., Kalijadis, A., Pajić-Lijaković, I., Kostić, M., Laušević, Z.,& Laušević, M.. (2014). Carbon materials from waste short hemp fibers as a sorbent for heavy metal ions - Mathematical modeling of sorbent structure and ions transport. in Chemical Engineering Journal
Elsevier Science Sa, Lausanne., 235, 284-292.
https://doi.org/10.1016/j.cej.2013.09.047
Vukčević M, Pejić B, Kalijadis A, Pajić-Lijaković I, Kostić M, Laušević Z, Laušević M. Carbon materials from waste short hemp fibers as a sorbent for heavy metal ions - Mathematical modeling of sorbent structure and ions transport. in Chemical Engineering Journal. 2014;235:284-292.
doi:10.1016/j.cej.2013.09.047 .
Vukčević, Marija, Pejić, Biljana, Kalijadis, Ana, Pajić-Lijaković, Ivana, Kostić, Mirjana, Laušević, Zoran, Laušević, Mila, "Carbon materials from waste short hemp fibers as a sorbent for heavy metal ions - Mathematical modeling of sorbent structure and ions transport" in Chemical Engineering Journal, 235 (2014):284-292,
https://doi.org/10.1016/j.cej.2013.09.047 . .
37
20
36

Adsorption and photocatalytic degradation of methylene blue on carbon monolith with TiO2 coating

Vukašinović, Marina; Vukčević, Marija; Kalijadis, Ana; Laušević, Zoran; Laušević, Mila

(Srpsko hemijsko društvo, 2013)

TY  - CONF
AU  - Vukašinović, Marina
AU  - Vukčević, Marija
AU  - Kalijadis, Ana
AU  - Laušević, Zoran
AU  - Laušević, Mila
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6317
PB  - Srpsko hemijsko društvo
C3  - 6th Symposium Chemistry and Environmental Protection – EnviroChem 2013, Book of Abstracts
T1  - Adsorption and photocatalytic degradation of methylene blue on carbon monolith with TiO2 coating
EP  - 265
SP  - 264
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6317
ER  - 
@conference{
author = "Vukašinović, Marina and Vukčević, Marija and Kalijadis, Ana and Laušević, Zoran and Laušević, Mila",
year = "2013",
publisher = "Srpsko hemijsko društvo",
journal = "6th Symposium Chemistry and Environmental Protection – EnviroChem 2013, Book of Abstracts",
title = "Adsorption and photocatalytic degradation of methylene blue on carbon monolith with TiO2 coating",
pages = "265-264",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6317"
}
Vukašinović, M., Vukčević, M., Kalijadis, A., Laušević, Z.,& Laušević, M.. (2013). Adsorption and photocatalytic degradation of methylene blue on carbon monolith with TiO2 coating. in 6th Symposium Chemistry and Environmental Protection – EnviroChem 2013, Book of Abstracts
Srpsko hemijsko društvo., 264-265.
https://hdl.handle.net/21.15107/rcub_technorep_6317
Vukašinović M, Vukčević M, Kalijadis A, Laušević Z, Laušević M. Adsorption and photocatalytic degradation of methylene blue on carbon monolith with TiO2 coating. in 6th Symposium Chemistry and Environmental Protection – EnviroChem 2013, Book of Abstracts. 2013;:264-265.
https://hdl.handle.net/21.15107/rcub_technorep_6317 .
Vukašinović, Marina, Vukčević, Marija, Kalijadis, Ana, Laušević, Zoran, Laušević, Mila, "Adsorption and photocatalytic degradation of methylene blue on carbon monolith with TiO2 coating" in 6th Symposium Chemistry and Environmental Protection – EnviroChem 2013, Book of Abstracts (2013):264-265,
https://hdl.handle.net/21.15107/rcub_technorep_6317 .

Uklanjanje organskih zagađujućih materija iz vodenih rastvora korišćenjem hidrotermalnog ugljenika kao sorbenta i nosača katalizatora

Kalijadis, Ana; Vukašinović, Marina; Vukčević, Marija; Laušević, Zoran; Laušević, Mila

(Srpsko hemijsko društvo, 2013)

TY  - CONF
AU  - Kalijadis, Ana
AU  - Vukašinović, Marina
AU  - Vukčević, Marija
AU  - Laušević, Zoran
AU  - Laušević, Mila
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6327
PB  - Srpsko hemijsko društvo
C3  - 6. Simpozijum Hemija i zaštita životne sredine – EnviroChem 2013, Knjiga izvoda
T1  - Uklanjanje organskih zagađujućih materija iz vodenih rastvora korišćenjem hidrotermalnog ugljenika kao sorbenta i nosača katalizatora
EP  - 263
SP  - 262
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6327
ER  - 
@conference{
author = "Kalijadis, Ana and Vukašinović, Marina and Vukčević, Marija and Laušević, Zoran and Laušević, Mila",
year = "2013",
publisher = "Srpsko hemijsko društvo",
journal = "6. Simpozijum Hemija i zaštita životne sredine – EnviroChem 2013, Knjiga izvoda",
title = "Uklanjanje organskih zagađujućih materija iz vodenih rastvora korišćenjem hidrotermalnog ugljenika kao sorbenta i nosača katalizatora",
pages = "263-262",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6327"
}
Kalijadis, A., Vukašinović, M., Vukčević, M., Laušević, Z.,& Laušević, M.. (2013). Uklanjanje organskih zagađujućih materija iz vodenih rastvora korišćenjem hidrotermalnog ugljenika kao sorbenta i nosača katalizatora. in 6. Simpozijum Hemija i zaštita životne sredine – EnviroChem 2013, Knjiga izvoda
Srpsko hemijsko društvo., 262-263.
https://hdl.handle.net/21.15107/rcub_technorep_6327
Kalijadis A, Vukašinović M, Vukčević M, Laušević Z, Laušević M. Uklanjanje organskih zagađujućih materija iz vodenih rastvora korišćenjem hidrotermalnog ugljenika kao sorbenta i nosača katalizatora. in 6. Simpozijum Hemija i zaštita životne sredine – EnviroChem 2013, Knjiga izvoda. 2013;:262-263.
https://hdl.handle.net/21.15107/rcub_technorep_6327 .
Kalijadis, Ana, Vukašinović, Marina, Vukčević, Marija, Laušević, Zoran, Laušević, Mila, "Uklanjanje organskih zagađujućih materija iz vodenih rastvora korišćenjem hidrotermalnog ugljenika kao sorbenta i nosača katalizatora" in 6. Simpozijum Hemija i zaštita životne sredine – EnviroChem 2013, Knjiga izvoda (2013):262-263,
https://hdl.handle.net/21.15107/rcub_technorep_6327 .

Influence of different carbon monolith preparation parameters on pesticide adsorption

Vukčević, Marija; Kalijadis, Ana; Babić, Biljana M.; Laušević, Zoran; Laušević, Mila

(Serbian Chemical Society, Belgrade, 2013)

TY  - JOUR
AU  - Vukčević, Marija
AU  - Kalijadis, Ana
AU  - Babić, Biljana M.
AU  - Laušević, Zoran
AU  - Laušević, Mila
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2341
AB  - The capacity of carbon monolith for pesticide removal from water, and the mechanism of pesticide interaction with the carbon surface were examined. Different carbon monolith samples were obtained by varying the carbonization and activation parameters. In order to examine the role of surface oxygen groups on pesticide adsorption, the carbon monolith surface was functionalized by chemical treatment in HNO3, H2O2 and KOH. The surface properties of the obtained samples were investigated by determination of the Brunauer, Emmett and Teller (BET) surface area, pore size distribution and temperature-programmed desorption. Adsorption of pesticides from aqueous solution onto the activated carbon monolith samples was studied using five pesticides belonging to different chemical groups (acetamiprid, dimethoate, nicosulfuron, carbofuran and atrazine). The presented results show that higher temperature of carbonization and amount of activating agent enable microporous carbon monolith with higher numbers of surface functional groups to be obtained. The adsorption properties of the activated carbon monolith were more readily affected by the number of surface functional groups than by the specific surface area. Results obtained after carbon monolith functionalization showed that π - π interactions were the driving main force for adsorption of pesticides with an aromatic structure, while acidic groups played an important role in adsorption of pesticides with no aromatic ring in their chemical structure.
AB  - U ovom radu je ispitivan kapacitet uzoraka karbon monolita za adsorpciju pesticida, kao i mehanizam interakcije pesticida sa površinom ugljeničnog materijala. Različiti uzorci karbon monolita dobijeni su variranjem parametara karbonizacije i aktivacije. U cilju ispitivanja uloge površinskih kiseoničnih grupa u adsorpciji pesticida izvršena je funkcionalizacija površine tretiranjem sa HNO3, H2O2 i KOH. Dobijeni uzorci okarakterisani su određivanjem specifične površine i raspodele pora, kao i metodom temperaturno-programirane desorpcije. Za ispitivanje adsorpcije pesticida iz vodenih rastvora korišćena je smeša pet pesticida koji pripadaju različitim hemijskim grupama (acetamiprid, dimetoat, nikosulfuron, karbo- furan i atrazin). Prikazani rezultati ukazuju na to da povećanje temperature karbonizacije, kao i udela aktivacionog agensa, omogućavaju dobijanje mikroporoznog karbon monolita sa većim sadržajem površinskih kiseoničnih grupa. Utvrđeno je da površinske kiseonične grupe imaju dominantan uticaj na adsorpcione karakteristike aktiviranih uzoraka. Dobijeni rezultati nakon funkcionalizacije površine karbon monolita pokazuju da π - π interakcije predstavljaju glavnu pokretačku silu za adsorpciju pesticida sa aromatičnom strukturom, dok kisele površinske grupe imaju vodeću ulogu u adsorpciji alifatičnih pesticida.
PB  - Serbian Chemical Society, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - Influence of different carbon monolith preparation parameters on pesticide adsorption
T1  - Uticaj parametara dobijanja karbon monolita na adsorpciju pesticida
EP  - 1632
IS  - 10
SP  - 1617
VL  - 78
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2341
ER  - 
@article{
author = "Vukčević, Marija and Kalijadis, Ana and Babić, Biljana M. and Laušević, Zoran and Laušević, Mila",
year = "2013",
abstract = "The capacity of carbon monolith for pesticide removal from water, and the mechanism of pesticide interaction with the carbon surface were examined. Different carbon monolith samples were obtained by varying the carbonization and activation parameters. In order to examine the role of surface oxygen groups on pesticide adsorption, the carbon monolith surface was functionalized by chemical treatment in HNO3, H2O2 and KOH. The surface properties of the obtained samples were investigated by determination of the Brunauer, Emmett and Teller (BET) surface area, pore size distribution and temperature-programmed desorption. Adsorption of pesticides from aqueous solution onto the activated carbon monolith samples was studied using five pesticides belonging to different chemical groups (acetamiprid, dimethoate, nicosulfuron, carbofuran and atrazine). The presented results show that higher temperature of carbonization and amount of activating agent enable microporous carbon monolith with higher numbers of surface functional groups to be obtained. The adsorption properties of the activated carbon monolith were more readily affected by the number of surface functional groups than by the specific surface area. Results obtained after carbon monolith functionalization showed that π - π interactions were the driving main force for adsorption of pesticides with an aromatic structure, while acidic groups played an important role in adsorption of pesticides with no aromatic ring in their chemical structure., U ovom radu je ispitivan kapacitet uzoraka karbon monolita za adsorpciju pesticida, kao i mehanizam interakcije pesticida sa površinom ugljeničnog materijala. Različiti uzorci karbon monolita dobijeni su variranjem parametara karbonizacije i aktivacije. U cilju ispitivanja uloge površinskih kiseoničnih grupa u adsorpciji pesticida izvršena je funkcionalizacija površine tretiranjem sa HNO3, H2O2 i KOH. Dobijeni uzorci okarakterisani su određivanjem specifične površine i raspodele pora, kao i metodom temperaturno-programirane desorpcije. Za ispitivanje adsorpcije pesticida iz vodenih rastvora korišćena je smeša pet pesticida koji pripadaju različitim hemijskim grupama (acetamiprid, dimetoat, nikosulfuron, karbo- furan i atrazin). Prikazani rezultati ukazuju na to da povećanje temperature karbonizacije, kao i udela aktivacionog agensa, omogućavaju dobijanje mikroporoznog karbon monolita sa većim sadržajem površinskih kiseoničnih grupa. Utvrđeno je da površinske kiseonične grupe imaju dominantan uticaj na adsorpcione karakteristike aktiviranih uzoraka. Dobijeni rezultati nakon funkcionalizacije površine karbon monolita pokazuju da π - π interakcije predstavljaju glavnu pokretačku silu za adsorpciju pesticida sa aromatičnom strukturom, dok kisele površinske grupe imaju vodeću ulogu u adsorpciji alifatičnih pesticida.",
publisher = "Serbian Chemical Society, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "Influence of different carbon monolith preparation parameters on pesticide adsorption, Uticaj parametara dobijanja karbon monolita na adsorpciju pesticida",
pages = "1632-1617",
number = "10",
volume = "78",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2341"
}
Vukčević, M., Kalijadis, A., Babić, B. M., Laušević, Z.,& Laušević, M.. (2013). Influence of different carbon monolith preparation parameters on pesticide adsorption. in Journal of the Serbian Chemical Society
Serbian Chemical Society, Belgrade., 78(10), 1617-1632.
https://hdl.handle.net/21.15107/rcub_technorep_2341
Vukčević M, Kalijadis A, Babić BM, Laušević Z, Laušević M. Influence of different carbon monolith preparation parameters on pesticide adsorption. in Journal of the Serbian Chemical Society. 2013;78(10):1617-1632.
https://hdl.handle.net/21.15107/rcub_technorep_2341 .
Vukčević, Marija, Kalijadis, Ana, Babić, Biljana M., Laušević, Zoran, Laušević, Mila, "Influence of different carbon monolith preparation parameters on pesticide adsorption" in Journal of the Serbian Chemical Society, 78, no. 10 (2013):1617-1632,
https://hdl.handle.net/21.15107/rcub_technorep_2341 .
16
26

Application of carbonized hemp fibers as a new solid-phase extraction sorbent for analysis of pesticides in water samples

Vukčević, Marija; Kalijadis, Ana; Radišić, Marina; Pejić, Biljana; Kostić, Mirjana; Laušević, Zoran; Laušević, Mila

(Elsevier Science Sa, Lausanne, 2012)

TY  - JOUR
AU  - Vukčević, Marija
AU  - Kalijadis, Ana
AU  - Radišić, Marina
AU  - Pejić, Biljana
AU  - Kostić, Mirjana
AU  - Laušević, Zoran
AU  - Laušević, Mila
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2156
AB  - There is a growing interest in utilization of abundantly available materials, bio-mass or industrial byproducts, as precursors for the preparation of carbon materials. Short hemp fibers, acquired as waste from textile production, were used as low-cost precursor for production of carbon materials as a sorbent in the solid-phase extraction, for pesticide analysis in water samples. Different carbon materials were prepared by carbonization of unmodified and chemically modified hemp fibers. Activation of carbonized materials with potassium hydroxide improves sorption properties of carbonized hemp fibers by increasing the specific surface area (up to 2192 m(2)/g) and the amount of surface oxygen groups. The following parameters that may affect the solid-phase extraction procedure efficiency were optimized: different elution solvents and the pH value of pesticide solution. Extracts were analyzed by liquid chromatography-tandem mass spectrometry technique. For this study pesticides belonging to the different chemical classes were chosen. Obtained results indicate that carbonized and activated hemp fibers could be successfully applied as a solid-phase sorbent for the pesticide analysis in water samples.
PB  - Elsevier Science Sa, Lausanne
T2  - Chemical Engineering Journal
T1  - Application of carbonized hemp fibers as a new solid-phase extraction sorbent for analysis of pesticides in water samples
EP  - 232
SP  - 224
VL  - 211
DO  - 10.1016/j.cej.2012.09.059
ER  - 
@article{
author = "Vukčević, Marija and Kalijadis, Ana and Radišić, Marina and Pejić, Biljana and Kostić, Mirjana and Laušević, Zoran and Laušević, Mila",
year = "2012",
abstract = "There is a growing interest in utilization of abundantly available materials, bio-mass or industrial byproducts, as precursors for the preparation of carbon materials. Short hemp fibers, acquired as waste from textile production, were used as low-cost precursor for production of carbon materials as a sorbent in the solid-phase extraction, for pesticide analysis in water samples. Different carbon materials were prepared by carbonization of unmodified and chemically modified hemp fibers. Activation of carbonized materials with potassium hydroxide improves sorption properties of carbonized hemp fibers by increasing the specific surface area (up to 2192 m(2)/g) and the amount of surface oxygen groups. The following parameters that may affect the solid-phase extraction procedure efficiency were optimized: different elution solvents and the pH value of pesticide solution. Extracts were analyzed by liquid chromatography-tandem mass spectrometry technique. For this study pesticides belonging to the different chemical classes were chosen. Obtained results indicate that carbonized and activated hemp fibers could be successfully applied as a solid-phase sorbent for the pesticide analysis in water samples.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Chemical Engineering Journal",
title = "Application of carbonized hemp fibers as a new solid-phase extraction sorbent for analysis of pesticides in water samples",
pages = "232-224",
volume = "211",
doi = "10.1016/j.cej.2012.09.059"
}
Vukčević, M., Kalijadis, A., Radišić, M., Pejić, B., Kostić, M., Laušević, Z.,& Laušević, M.. (2012). Application of carbonized hemp fibers as a new solid-phase extraction sorbent for analysis of pesticides in water samples. in Chemical Engineering Journal
Elsevier Science Sa, Lausanne., 211, 224-232.
https://doi.org/10.1016/j.cej.2012.09.059
Vukčević M, Kalijadis A, Radišić M, Pejić B, Kostić M, Laušević Z, Laušević M. Application of carbonized hemp fibers as a new solid-phase extraction sorbent for analysis of pesticides in water samples. in Chemical Engineering Journal. 2012;211:224-232.
doi:10.1016/j.cej.2012.09.059 .
Vukčević, Marija, Kalijadis, Ana, Radišić, Marina, Pejić, Biljana, Kostić, Mirjana, Laušević, Zoran, Laušević, Mila, "Application of carbonized hemp fibers as a new solid-phase extraction sorbent for analysis of pesticides in water samples" in Chemical Engineering Journal, 211 (2012):224-232,
https://doi.org/10.1016/j.cej.2012.09.059 . .
42
25
38

Modification of glassy carbon properties under low energy proton irradiation

Jovanovic, Zoran; Kalijadis, Ana; Vasiljević-Radović, Dana; Eric, Marko; Lausevic, Mila; Mentus, Slavko; Laušević, Zoran

(Oxford : Pergamon-Elsevier Science Ltd, 2011)

TY  - JOUR
AU  - Jovanovic, Zoran
AU  - Kalijadis, Ana
AU  - Vasiljević-Radović, Dana
AU  - Eric, Marko
AU  - Lausevic, Mila
AU  - Mentus, Slavko
AU  - Laušević, Zoran
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5639
AB  - Glassy carbon plates were irradiated with 15 key H(+) ion-beam in the fluence range of 1 x 10(16)-3 x 10(18) ion cm(-2). The influence of ion irradiation on surface morphology and topology was examined by scanning electron and atomic force microscopy. Structural changes were monitored by Raman spectrometry, while changes of wettability and the content of surface oxygen complexes were examined by contact angle measurements and temperature programmed desorption. Elastic recoil detection analysis was applied for determination of hydrogen concentration profiles in irradiated samples. Cyclic voltammetry was used for the assessment of the electrochemical properties of modified glassy carbon electrodes. It was concluded that there is critical fluence range (2 x 10(17)-5 x 10(17) ion cm(-2)) inside of which significant changes of glassy carbon properties occur.
PB  - Oxford : Pergamon-Elsevier Science Ltd
T2  - Carbon
T1  - Modification of glassy carbon properties under low energy proton irradiation
EP  - 3746
IS  - 12
SP  - 3737
VL  - 49
DO  - 10.1016/j.carbon.2011.05.006
ER  - 
@article{
author = "Jovanovic, Zoran and Kalijadis, Ana and Vasiljević-Radović, Dana and Eric, Marko and Lausevic, Mila and Mentus, Slavko and Laušević, Zoran",
year = "2011",
abstract = "Glassy carbon plates were irradiated with 15 key H(+) ion-beam in the fluence range of 1 x 10(16)-3 x 10(18) ion cm(-2). The influence of ion irradiation on surface morphology and topology was examined by scanning electron and atomic force microscopy. Structural changes were monitored by Raman spectrometry, while changes of wettability and the content of surface oxygen complexes were examined by contact angle measurements and temperature programmed desorption. Elastic recoil detection analysis was applied for determination of hydrogen concentration profiles in irradiated samples. Cyclic voltammetry was used for the assessment of the electrochemical properties of modified glassy carbon electrodes. It was concluded that there is critical fluence range (2 x 10(17)-5 x 10(17) ion cm(-2)) inside of which significant changes of glassy carbon properties occur.",
publisher = "Oxford : Pergamon-Elsevier Science Ltd",
journal = "Carbon",
title = "Modification of glassy carbon properties under low energy proton irradiation",
pages = "3746-3737",
number = "12",
volume = "49",
doi = "10.1016/j.carbon.2011.05.006"
}
Jovanovic, Z., Kalijadis, A., Vasiljević-Radović, D., Eric, M., Lausevic, M., Mentus, S.,& Laušević, Z.. (2011). Modification of glassy carbon properties under low energy proton irradiation. in Carbon
Oxford : Pergamon-Elsevier Science Ltd., 49(12), 3737-3746.
https://doi.org/10.1016/j.carbon.2011.05.006
Jovanovic Z, Kalijadis A, Vasiljević-Radović D, Eric M, Lausevic M, Mentus S, Laušević Z. Modification of glassy carbon properties under low energy proton irradiation. in Carbon. 2011;49(12):3737-3746.
doi:10.1016/j.carbon.2011.05.006 .
Jovanovic, Zoran, Kalijadis, Ana, Vasiljević-Radović, Dana, Eric, Marko, Lausevic, Mila, Mentus, Slavko, Laušević, Zoran, "Modification of glassy carbon properties under low energy proton irradiation" in Carbon, 49, no. 12 (2011):3737-3746,
https://doi.org/10.1016/j.carbon.2011.05.006 . .
8
7
8

Platinum deposition from hydrogen-ion beam irradiated solid precursor

Jovanović, Zoran M.; Pašti, Igor A.; Kalijadis, Ana; Lausevic, Mila; Mentus, Slavko V.; Laušević, Zoran

(2011)

TY  - JOUR
AU  - Jovanović, Zoran M.
AU  - Pašti, Igor A.
AU  - Kalijadis, Ana
AU  - Lausevic, Mila
AU  - Mentus, Slavko V.
AU  - Laušević, Zoran
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5649
AB  - We report a particular method of Pt/glassy carbon (GC) surface formation, based on a 15 key H(+/-) ion beam irradiation of thin H(2)PtCl(6)xnH(2)O layer placed over the GC surface. Hydrogen-ion beam irradiation provided an excellent adherence of Pt deposit, unlike to any other Pt-deposition method. Furthermore, the morphology and electrochemical activity of GC/Pt catalyst obtained at the fluence of 5 x 10(17) cm(-2) was found to be sensitive to the sign of charge of hydrogen ions. The electrochemical activity of such obtained Pt/GC surface toward oxygen reduction and ethanol oxidation was compared with the activity of the Pt deposits obtained by other more common reduction procedures. (C) 2011 Elsevier B.V. All rights reserved.
T2  - Materials Letters
T1  - Platinum deposition from hydrogen-ion beam irradiated solid precursor
EP  - 2657
IS  - 17-18
SP  - 2655
VL  - 65
DO  - 10.1016/j.matlet.2011.05.015
ER  - 
@article{
author = "Jovanović, Zoran M. and Pašti, Igor A. and Kalijadis, Ana and Lausevic, Mila and Mentus, Slavko V. and Laušević, Zoran",
year = "2011",
abstract = "We report a particular method of Pt/glassy carbon (GC) surface formation, based on a 15 key H(+/-) ion beam irradiation of thin H(2)PtCl(6)xnH(2)O layer placed over the GC surface. Hydrogen-ion beam irradiation provided an excellent adherence of Pt deposit, unlike to any other Pt-deposition method. Furthermore, the morphology and electrochemical activity of GC/Pt catalyst obtained at the fluence of 5 x 10(17) cm(-2) was found to be sensitive to the sign of charge of hydrogen ions. The electrochemical activity of such obtained Pt/GC surface toward oxygen reduction and ethanol oxidation was compared with the activity of the Pt deposits obtained by other more common reduction procedures. (C) 2011 Elsevier B.V. All rights reserved.",
journal = "Materials Letters",
title = "Platinum deposition from hydrogen-ion beam irradiated solid precursor",
pages = "2657-2655",
number = "17-18",
volume = "65",
doi = "10.1016/j.matlet.2011.05.015"
}
Jovanović, Z. M., Pašti, I. A., Kalijadis, A., Lausevic, M., Mentus, S. V.,& Laušević, Z.. (2011). Platinum deposition from hydrogen-ion beam irradiated solid precursor. in Materials Letters, 65(17-18), 2655-2657.
https://doi.org/10.1016/j.matlet.2011.05.015
Jovanović ZM, Pašti IA, Kalijadis A, Lausevic M, Mentus SV, Laušević Z. Platinum deposition from hydrogen-ion beam irradiated solid precursor. in Materials Letters. 2011;65(17-18):2655-2657.
doi:10.1016/j.matlet.2011.05.015 .
Jovanović, Zoran M., Pašti, Igor A., Kalijadis, Ana, Lausevic, Mila, Mentus, Slavko V., Laušević, Zoran, "Platinum deposition from hydrogen-ion beam irradiated solid precursor" in Materials Letters, 65, no. 17-18 (2011):2655-2657,
https://doi.org/10.1016/j.matlet.2011.05.015 . .
3
1
1
1

The effect of boron incorporation on the structure and properties of glassy carbon

Kalijadis, Ana; Jovanović, Zoran M.; Laušević, Mila; Laušević, Zoran

(Elsevier Ltd., 2011)

TY  - JOUR
AU  - Kalijadis, Ana
AU  - Jovanović, Zoran M.
AU  - Laušević, Mila
AU  - Laušević, Zoran
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5660
AB  - Boron was introduced into glassy carbon by chemical modification and by irradiating the precursor polymer with boron ions. Using chemical modification, a polymer with uniform distribution of boron in the bulk was obtained, whereas irradiation with B3+ produced a polymer with boron located in a narrow region under the surface. Following modification with boron, the samples were carbonized at 1273 K and examined using X-ray diffraction, Raman spectroscopy, temperature programmed desorption (TPD) and by hardness measurements. Structural analysis results suggest that boron is mostly substitutionally bonded in the glassy carbon structure regardless of the method used to introduce boron into the polymer precursor. Formation of crosslinks between glassy carbon ribbons during carbonization as a consequence of the recombination of ion beam induced changes in the polymer structure and a high concentration of boron in the subsurface layer is proposed to account for an increase of glassy carbon hardness. An increase in the total amount of surface oxygen groups was observed in the TPD spectra of both boron-modified samples due to an increase in the number of active sites. Results show that the nature of these sites is influenced by the initial distribution of boron in the polymer precursor. (C) 2011 Elsevier Ltd. All rights reserved.
PB  - Elsevier Ltd.
T2  - Carbon
T1  - The effect of boron incorporation on the structure and properties of glassy carbon
EP  - 2678
IS  - 8
SP  - 2671
VL  - 49
DO  - 10.1016/j.carbon.2011.02.054
ER  - 
@article{
author = "Kalijadis, Ana and Jovanović, Zoran M. and Laušević, Mila and Laušević, Zoran",
year = "2011",
abstract = "Boron was introduced into glassy carbon by chemical modification and by irradiating the precursor polymer with boron ions. Using chemical modification, a polymer with uniform distribution of boron in the bulk was obtained, whereas irradiation with B3+ produced a polymer with boron located in a narrow region under the surface. Following modification with boron, the samples were carbonized at 1273 K and examined using X-ray diffraction, Raman spectroscopy, temperature programmed desorption (TPD) and by hardness measurements. Structural analysis results suggest that boron is mostly substitutionally bonded in the glassy carbon structure regardless of the method used to introduce boron into the polymer precursor. Formation of crosslinks between glassy carbon ribbons during carbonization as a consequence of the recombination of ion beam induced changes in the polymer structure and a high concentration of boron in the subsurface layer is proposed to account for an increase of glassy carbon hardness. An increase in the total amount of surface oxygen groups was observed in the TPD spectra of both boron-modified samples due to an increase in the number of active sites. Results show that the nature of these sites is influenced by the initial distribution of boron in the polymer precursor. (C) 2011 Elsevier Ltd. All rights reserved.",
publisher = "Elsevier Ltd.",
journal = "Carbon",
title = "The effect of boron incorporation on the structure and properties of glassy carbon",
pages = "2678-2671",
number = "8",
volume = "49",
doi = "10.1016/j.carbon.2011.02.054"
}
Kalijadis, A., Jovanović, Z. M., Laušević, M.,& Laušević, Z.. (2011). The effect of boron incorporation on the structure and properties of glassy carbon. in Carbon
Elsevier Ltd.., 49(8), 2671-2678.
https://doi.org/10.1016/j.carbon.2011.02.054
Kalijadis A, Jovanović ZM, Laušević M, Laušević Z. The effect of boron incorporation on the structure and properties of glassy carbon. in Carbon. 2011;49(8):2671-2678.
doi:10.1016/j.carbon.2011.02.054 .
Kalijadis, Ana, Jovanović, Zoran M., Laušević, Mila, Laušević, Zoran, "The effect of boron incorporation on the structure and properties of glassy carbon" in Carbon, 49, no. 8 (2011):2671-2678,
https://doi.org/10.1016/j.carbon.2011.02.054 . .
3
30
26
31

The evolution of hydrogen from proton irradiated glassy carbon

Jovanović, Zoran M.; Kalijadis, Ana; Laušević, Mila; Laušević, Zoran

(Elsevier B.V., 2011)

TY  - JOUR
AU  - Jovanović, Zoran M.
AU  - Kalijadis, Ana
AU  - Laušević, Mila
AU  - Laušević, Zoran
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5661
AB  - Glassy carbon was irradiated with 15 key H(+) ion beam. It was observed that the implanted hydrogen is unstable in material and evolves as H, H(2) and H(2)O. Post-irradiation evolution of H, H(2) and H(2)O from proton irradiated glassy carbon was monitored by temperature programmed desorption (TPD) in the period of 30 days. In between irradiation and TPD measurements the irradiated samples were stored in air. The evolution of the molecular hydrogen, although the protons are implanted deeply below the surface of the disordered glassy carbon, proceeds over the same mechanism as in the case of low-energy H-atoms chemisorbed on the very surface of an ideal graphite structure. (C) 2011 Elsevier B.V. All rights reserved.
PB  - Elsevier B.V.
T2  - Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms
T1  - The evolution of hydrogen from proton irradiated glassy carbon
EP  - 2583
IS  - 21
SP  - 2578
VL  - 269
DO  - 10.1016/j.nimb.2011.07.014
ER  - 
@article{
author = "Jovanović, Zoran M. and Kalijadis, Ana and Laušević, Mila and Laušević, Zoran",
year = "2011",
abstract = "Glassy carbon was irradiated with 15 key H(+) ion beam. It was observed that the implanted hydrogen is unstable in material and evolves as H, H(2) and H(2)O. Post-irradiation evolution of H, H(2) and H(2)O from proton irradiated glassy carbon was monitored by temperature programmed desorption (TPD) in the period of 30 days. In between irradiation and TPD measurements the irradiated samples were stored in air. The evolution of the molecular hydrogen, although the protons are implanted deeply below the surface of the disordered glassy carbon, proceeds over the same mechanism as in the case of low-energy H-atoms chemisorbed on the very surface of an ideal graphite structure. (C) 2011 Elsevier B.V. All rights reserved.",
publisher = "Elsevier B.V.",
journal = "Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms",
title = "The evolution of hydrogen from proton irradiated glassy carbon",
pages = "2583-2578",
number = "21",
volume = "269",
doi = "10.1016/j.nimb.2011.07.014"
}
Jovanović, Z. M., Kalijadis, A., Laušević, M.,& Laušević, Z.. (2011). The evolution of hydrogen from proton irradiated glassy carbon. in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms
Elsevier B.V.., 269(21), 2578-2583.
https://doi.org/10.1016/j.nimb.2011.07.014
Jovanović ZM, Kalijadis A, Laušević M, Laušević Z. The evolution of hydrogen from proton irradiated glassy carbon. in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms. 2011;269(21):2578-2583.
doi:10.1016/j.nimb.2011.07.014 .
Jovanović, Zoran M., Kalijadis, Ana, Laušević, Mila, Laušević, Zoran, "The evolution of hydrogen from proton irradiated glassy carbon" in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 269, no. 21 (2011):2578-2583,
https://doi.org/10.1016/j.nimb.2011.07.014 . .
3
2
3

Characterisation of surface oxygen groups on different carbon materials by the Boehm method and temperature-programmed desorption

Kalijadis, Ana; Vukčević, Marija; Jovanović, Zoran M.; Laušević, Zoran; Laušević, Mila

(Serbian Chemical Society, Belgrade, 2011)

TY  - JOUR
AU  - Kalijadis, Ana
AU  - Vukčević, Marija
AU  - Jovanović, Zoran M.
AU  - Laušević, Zoran
AU  - Laušević, Mila
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1802
AB  - The surface characteristics of different carbon materials: activated carbon, carbon felt, glassy carbon and a porous carbon monolith were investigated. The specific surface area was examined by the BET method with N2 adsorption, the amount and the type of surface oxygen groups by Boehm titration as well as by temperature-programmed desorption (TPD). By comparing the results obtained using BET analysis with those of TPD and the Boehm method, it was found that the number of surface groups was not proportional to the specific surface area. The total amount of oxygen groups, obtained by TPD, is higher than the amount obtained by Boehm's method for porous samples. The inconsistencies between these results originate from the fact that the Boehm method is limited to the determination of acidic and basic groups, whereas TPD provides information on the total number of all surface oxygen groups. In addition, the presence of porosity could reduce the solvent-accessible surface in the Boehm method. The TPD profiles of CO evolution showed the presence of a low temperature maximum, below 650 K, which originates from CO2 reduction on the carbon material surface.
AB  - Ispitivane su površinske osobine različitih karbonskih materijala: aktivnog uglja, karbonskog filca, staklastog ugljenika i poroznog karbon monolita. Specifična površina uzoraka ispitivana je BET metodom, a količina i tip površinskih grupa Bemovim titracijama i temperaturski programiranom desorpcijom (TPD). Poredeći rezultate dobijene BET metodom sa rezultatima TPD-a i Bemove titracije, zaključeno je da broj površinskih grupa nije proporcionalan specifičnoj površini uzoraka. Ukupan broj kiseoničnih grupa kod poroznih uzoraka, dobijen na osnovu TPD-a, je veći nego u slučaju Bemovih titracija. Razlog neslaganja rezultata ovih dveju metoda potiče iz činjenice da je Bemov metod ograničen na određivanje samo kiselih i baznih grupa, dok TPD daje informaciju o ukupnom broju svih kiseoničnih grupa. Takođe, kod Bemovog metoda, postojanje poroznosti može smanjiti rastvoru dostupnu površinu. TPD spektri izdvajanja SO pokazali su nisko-temperaturski maksimum, ispod 650 K, koji potiče od redukcije SO2 na površini karbonskog materijala.
PB  - Serbian Chemical Society, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - Characterisation of surface oxygen groups on different carbon materials by the Boehm method and temperature-programmed desorption
T1  - Karakterizacija površinskih kiseoničnih grupa različitih karbonskih materijala Bemovom (Boehm) metodom i temperaturski programiranom desorpcijom
EP  - 768
IS  - 5
SP  - 757
VL  - 76
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1802
ER  - 
@article{
author = "Kalijadis, Ana and Vukčević, Marija and Jovanović, Zoran M. and Laušević, Zoran and Laušević, Mila",
year = "2011",
abstract = "The surface characteristics of different carbon materials: activated carbon, carbon felt, glassy carbon and a porous carbon monolith were investigated. The specific surface area was examined by the BET method with N2 adsorption, the amount and the type of surface oxygen groups by Boehm titration as well as by temperature-programmed desorption (TPD). By comparing the results obtained using BET analysis with those of TPD and the Boehm method, it was found that the number of surface groups was not proportional to the specific surface area. The total amount of oxygen groups, obtained by TPD, is higher than the amount obtained by Boehm's method for porous samples. The inconsistencies between these results originate from the fact that the Boehm method is limited to the determination of acidic and basic groups, whereas TPD provides information on the total number of all surface oxygen groups. In addition, the presence of porosity could reduce the solvent-accessible surface in the Boehm method. The TPD profiles of CO evolution showed the presence of a low temperature maximum, below 650 K, which originates from CO2 reduction on the carbon material surface., Ispitivane su površinske osobine različitih karbonskih materijala: aktivnog uglja, karbonskog filca, staklastog ugljenika i poroznog karbon monolita. Specifična površina uzoraka ispitivana je BET metodom, a količina i tip površinskih grupa Bemovim titracijama i temperaturski programiranom desorpcijom (TPD). Poredeći rezultate dobijene BET metodom sa rezultatima TPD-a i Bemove titracije, zaključeno je da broj površinskih grupa nije proporcionalan specifičnoj površini uzoraka. Ukupan broj kiseoničnih grupa kod poroznih uzoraka, dobijen na osnovu TPD-a, je veći nego u slučaju Bemovih titracija. Razlog neslaganja rezultata ovih dveju metoda potiče iz činjenice da je Bemov metod ograničen na određivanje samo kiselih i baznih grupa, dok TPD daje informaciju o ukupnom broju svih kiseoničnih grupa. Takođe, kod Bemovog metoda, postojanje poroznosti može smanjiti rastvoru dostupnu površinu. TPD spektri izdvajanja SO pokazali su nisko-temperaturski maksimum, ispod 650 K, koji potiče od redukcije SO2 na površini karbonskog materijala.",
publisher = "Serbian Chemical Society, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "Characterisation of surface oxygen groups on different carbon materials by the Boehm method and temperature-programmed desorption, Karakterizacija površinskih kiseoničnih grupa različitih karbonskih materijala Bemovom (Boehm) metodom i temperaturski programiranom desorpcijom",
pages = "768-757",
number = "5",
volume = "76",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1802"
}
Kalijadis, A., Vukčević, M., Jovanović, Z. M., Laušević, Z.,& Laušević, M.. (2011). Characterisation of surface oxygen groups on different carbon materials by the Boehm method and temperature-programmed desorption. in Journal of the Serbian Chemical Society
Serbian Chemical Society, Belgrade., 76(5), 757-768.
https://hdl.handle.net/21.15107/rcub_technorep_1802
Kalijadis A, Vukčević M, Jovanović ZM, Laušević Z, Laušević M. Characterisation of surface oxygen groups on different carbon materials by the Boehm method and temperature-programmed desorption. in Journal of the Serbian Chemical Society. 2011;76(5):757-768.
https://hdl.handle.net/21.15107/rcub_technorep_1802 .
Kalijadis, Ana, Vukčević, Marija, Jovanović, Zoran M., Laušević, Zoran, Laušević, Mila, "Characterisation of surface oxygen groups on different carbon materials by the Boehm method and temperature-programmed desorption" in Journal of the Serbian Chemical Society, 76, no. 5 (2011):757-768,
https://hdl.handle.net/21.15107/rcub_technorep_1802 .
51
65

Carbon Monolith Surface Chemistry Influence on the Silver Deposit Amount and Crystallite Size

Vukčević, Marija; Kalijadis, Ana; Jovanović, Zoran M.; Laušević, Zoran; Laušević, Mila

(Polish Acad Sciences Inst Physics, Warsaw, 2011)

TY  - JOUR
AU  - Vukčević, Marija
AU  - Kalijadis, Ana
AU  - Jovanović, Zoran M.
AU  - Laušević, Zoran
AU  - Laušević, Mila
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1763
AB  - The surface of carbon monolith (CM) was chemically treated in order to obtain antibacterial filters with silver deposit for water treatment. The chemical treatment involved submerging the as-received CM in HNO(3), KOH and H(2)O(2) solution. The specific surface area was examined by N(2) adsorption. Silver deposition at the surface of CM samples was performed using cheap and simple procedure of immersing CM samples in aqueous solution of AgNO(3). Temperature programmed desorption method has been used in order to investigate the nature and thermal stability of surface oxygen groups before and after silver deposition. The composition and crystalinity of silver deposits have been examined by X-ray diffraction. Chemical treatment does not cause any drastic changes of CM specific surface area, but increases a total amount of surface oxides. Amount of deposited silver is several times higher for all chemically treated samples. The results show that increasing the amount of CO yielding groups on CM surface leads to increased amount of Ag deposit and decreases its crystallite sizes
PB  - Polish Acad Sciences Inst Physics, Warsaw
T2  - Acta Physica Polonica A
T1  - Carbon Monolith Surface Chemistry Influence on the Silver Deposit Amount and Crystallite Size
EP  - 288
IS  - 2
SP  - 284
VL  - 120
DO  - 10.12693/APhysPolA.120.284
ER  - 
@article{
author = "Vukčević, Marija and Kalijadis, Ana and Jovanović, Zoran M. and Laušević, Zoran and Laušević, Mila",
year = "2011",
abstract = "The surface of carbon monolith (CM) was chemically treated in order to obtain antibacterial filters with silver deposit for water treatment. The chemical treatment involved submerging the as-received CM in HNO(3), KOH and H(2)O(2) solution. The specific surface area was examined by N(2) adsorption. Silver deposition at the surface of CM samples was performed using cheap and simple procedure of immersing CM samples in aqueous solution of AgNO(3). Temperature programmed desorption method has been used in order to investigate the nature and thermal stability of surface oxygen groups before and after silver deposition. The composition and crystalinity of silver deposits have been examined by X-ray diffraction. Chemical treatment does not cause any drastic changes of CM specific surface area, but increases a total amount of surface oxides. Amount of deposited silver is several times higher for all chemically treated samples. The results show that increasing the amount of CO yielding groups on CM surface leads to increased amount of Ag deposit and decreases its crystallite sizes",
publisher = "Polish Acad Sciences Inst Physics, Warsaw",
journal = "Acta Physica Polonica A",
title = "Carbon Monolith Surface Chemistry Influence on the Silver Deposit Amount and Crystallite Size",
pages = "288-284",
number = "2",
volume = "120",
doi = "10.12693/APhysPolA.120.284"
}
Vukčević, M., Kalijadis, A., Jovanović, Z. M., Laušević, Z.,& Laušević, M.. (2011). Carbon Monolith Surface Chemistry Influence on the Silver Deposit Amount and Crystallite Size. in Acta Physica Polonica A
Polish Acad Sciences Inst Physics, Warsaw., 120(2), 284-288.
https://doi.org/10.12693/APhysPolA.120.284
Vukčević M, Kalijadis A, Jovanović ZM, Laušević Z, Laušević M. Carbon Monolith Surface Chemistry Influence on the Silver Deposit Amount and Crystallite Size. in Acta Physica Polonica A. 2011;120(2):284-288.
doi:10.12693/APhysPolA.120.284 .
Vukčević, Marija, Kalijadis, Ana, Jovanović, Zoran M., Laušević, Zoran, Laušević, Mila, "Carbon Monolith Surface Chemistry Influence on the Silver Deposit Amount and Crystallite Size" in Acta Physica Polonica A, 120, no. 2 (2011):284-288,
https://doi.org/10.12693/APhysPolA.120.284 . .
1
2
2

Silver deposition on chemically treated carbon monolith

Jovanović, Zoran M.; Kalijadis, Ana; Vukčević, Marija; Laušević, Zoran; Laušević, Mila

(Association of Chemical Engineers of Serbia, 2009)

TY  - JOUR
AU  - Jovanović, Zoran M.
AU  - Kalijadis, Ana
AU  - Vukčević, Marija
AU  - Laušević, Zoran
AU  - Laušević, Mila
PY  - 2009
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1406
AB  - Carbon monolith was treated with HNO3, KOH and H2O2. Effects of these treatments on the surface functional groups and on the amount of silver deposited on the CM surface were studied by temperature programmed desorption (TPD) and atomic absorption spectrometry (AAS). As a result of chemical treatment there was an increase in the amount of surface oxygen complexes. The increase in the amount of silver deposit is proportional to the amount of surface groups that produce CO under decomposition. However, the high amount of CO groups, decomposing above 600°C, induces the smaller Ag crystallite size. Therefore, the high temperature CO evolving oxides are, most likely, the initial centers for Ag deposition.
AB  - Karbon monolit (KM) tretiran je rastvorima HNO3, KOH i H2O2. Uticaj tretmana na površinske funkcionalne grupe i na količinu izdvojenog srebra na površini KM-a ispitivan je temperaturski programiranom desorpcijom (TPD) i atomskom apsorpcionom spektrometrijom (AAS). Tretman svim navedenim rastvorima dovodi do povećanja količine površinskih kiseoničnih grupa, a količina izdvojenog srebra je proporcionalna količini grupa koje dekompozicijom daju CO. Visoko-temperaturske fenolne, karbonilne, etarske i hinonske grupe, koje dekompozicijom daju CO iznad 600°C, predstavljaju inicijalne centre za rast kristalita Ag, a veličina kristalita srebra je obrnuto proporcionalna koncentraciji ovih visoko-temperaturskih grupa na površini KM.
PB  - Association of Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - Silver deposition on chemically treated carbon monolith
T1  - Izdvajanje srebra na površini hemijski tretiranog karbon monolita
EP  - 200
IS  - 3
SP  - 195
VL  - 63
DO  - 10.2298/HEMIND0903195J
ER  - 
@article{
author = "Jovanović, Zoran M. and Kalijadis, Ana and Vukčević, Marija and Laušević, Zoran and Laušević, Mila",
year = "2009",
abstract = "Carbon monolith was treated with HNO3, KOH and H2O2. Effects of these treatments on the surface functional groups and on the amount of silver deposited on the CM surface were studied by temperature programmed desorption (TPD) and atomic absorption spectrometry (AAS). As a result of chemical treatment there was an increase in the amount of surface oxygen complexes. The increase in the amount of silver deposit is proportional to the amount of surface groups that produce CO under decomposition. However, the high amount of CO groups, decomposing above 600°C, induces the smaller Ag crystallite size. Therefore, the high temperature CO evolving oxides are, most likely, the initial centers for Ag deposition., Karbon monolit (KM) tretiran je rastvorima HNO3, KOH i H2O2. Uticaj tretmana na površinske funkcionalne grupe i na količinu izdvojenog srebra na površini KM-a ispitivan je temperaturski programiranom desorpcijom (TPD) i atomskom apsorpcionom spektrometrijom (AAS). Tretman svim navedenim rastvorima dovodi do povećanja količine površinskih kiseoničnih grupa, a količina izdvojenog srebra je proporcionalna količini grupa koje dekompozicijom daju CO. Visoko-temperaturske fenolne, karbonilne, etarske i hinonske grupe, koje dekompozicijom daju CO iznad 600°C, predstavljaju inicijalne centre za rast kristalita Ag, a veličina kristalita srebra je obrnuto proporcionalna koncentraciji ovih visoko-temperaturskih grupa na površini KM.",
publisher = "Association of Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "Silver deposition on chemically treated carbon monolith, Izdvajanje srebra na površini hemijski tretiranog karbon monolita",
pages = "200-195",
number = "3",
volume = "63",
doi = "10.2298/HEMIND0903195J"
}
Jovanović, Z. M., Kalijadis, A., Vukčević, M., Laušević, Z.,& Laušević, M.. (2009). Silver deposition on chemically treated carbon monolith. in Hemijska industrija
Association of Chemical Engineers of Serbia., 63(3), 195-200.
https://doi.org/10.2298/HEMIND0903195J
Jovanović ZM, Kalijadis A, Vukčević M, Laušević Z, Laušević M. Silver deposition on chemically treated carbon monolith. in Hemijska industrija. 2009;63(3):195-200.
doi:10.2298/HEMIND0903195J .
Jovanović, Zoran M., Kalijadis, Ana, Vukčević, Marija, Laušević, Zoran, Laušević, Mila, "Silver deposition on chemically treated carbon monolith" in Hemijska industrija, 63, no. 3 (2009):195-200,
https://doi.org/10.2298/HEMIND0903195J . .

Surface characteristics and antibacterial activity of a silver-doped carbon monolith

Vukčević, Marija; Kalijadis, Ana; Dimitrijević-Branković, Suzana; Laušević, Zoran; Laušević, Mila

(Natl Inst Materials Science, Ibaraki, 2008)

TY  - JOUR
AU  - Vukčević, Marija
AU  - Kalijadis, Ana
AU  - Dimitrijević-Branković, Suzana
AU  - Laušević, Zoran
AU  - Laušević, Mila
PY  - 2008
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1276
AB  - A carbon monolith with a silver coating was prepared and its antimicrobial behaviour in a flow system was examined. The functional groups on the surface of the carbon monolith were determined by temperature-programmed desorption and Boehm's method, and the point of zero charge was determined by mass titration. The specific surface area was examined by N-2 adsorption using the Brunauer, Emmett and Teller ( BET) method. As a test for the surface activity, the deposition of silver from an aqueous solution of a silver salt was used. The morphology and structure of the silver coatings were characterized by scanning electron microscopy and x-ray diffraction. The resistance to the attrition of the silver deposited on the carbon monolith was tested. The antimicrobial activity of the carbon monolith with a silver coating was determined using standard microbiological methods. Carbon monolith samples with a silver coating showed good antimicrobial activity against Escherichia coli, Staphylococcus aureus and Candida albicans, and are therefore suitable for water purification, particularly as personal disposable water filters with a limited capacity.
PB  - Natl Inst Materials Science, Ibaraki
T2  - Science and Technology of Advanced Materials
T1  - Surface characteristics and antibacterial activity of a silver-doped carbon monolith
IS  - 1
VL  - 9
DO  - 10.1088/1468-6996/9/1/015006
ER  - 
@article{
author = "Vukčević, Marija and Kalijadis, Ana and Dimitrijević-Branković, Suzana and Laušević, Zoran and Laušević, Mila",
year = "2008",
abstract = "A carbon monolith with a silver coating was prepared and its antimicrobial behaviour in a flow system was examined. The functional groups on the surface of the carbon monolith were determined by temperature-programmed desorption and Boehm's method, and the point of zero charge was determined by mass titration. The specific surface area was examined by N-2 adsorption using the Brunauer, Emmett and Teller ( BET) method. As a test for the surface activity, the deposition of silver from an aqueous solution of a silver salt was used. The morphology and structure of the silver coatings were characterized by scanning electron microscopy and x-ray diffraction. The resistance to the attrition of the silver deposited on the carbon monolith was tested. The antimicrobial activity of the carbon monolith with a silver coating was determined using standard microbiological methods. Carbon monolith samples with a silver coating showed good antimicrobial activity against Escherichia coli, Staphylococcus aureus and Candida albicans, and are therefore suitable for water purification, particularly as personal disposable water filters with a limited capacity.",
publisher = "Natl Inst Materials Science, Ibaraki",
journal = "Science and Technology of Advanced Materials",
title = "Surface characteristics and antibacterial activity of a silver-doped carbon monolith",
number = "1",
volume = "9",
doi = "10.1088/1468-6996/9/1/015006"
}
Vukčević, M., Kalijadis, A., Dimitrijević-Branković, S., Laušević, Z.,& Laušević, M.. (2008). Surface characteristics and antibacterial activity of a silver-doped carbon monolith. in Science and Technology of Advanced Materials
Natl Inst Materials Science, Ibaraki., 9(1).
https://doi.org/10.1088/1468-6996/9/1/015006
Vukčević M, Kalijadis A, Dimitrijević-Branković S, Laušević Z, Laušević M. Surface characteristics and antibacterial activity of a silver-doped carbon monolith. in Science and Technology of Advanced Materials. 2008;9(1).
doi:10.1088/1468-6996/9/1/015006 .
Vukčević, Marija, Kalijadis, Ana, Dimitrijević-Branković, Suzana, Laušević, Zoran, Laušević, Mila, "Surface characteristics and antibacterial activity of a silver-doped carbon monolith" in Science and Technology of Advanced Materials, 9, no. 1 (2008),
https://doi.org/10.1088/1468-6996/9/1/015006 . .
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Surface characterization of silver and palladium modified glassy carbon

Perić-Grujić, Aleksandra; Nešković, Olivera M.; Veljković, Miomir V.; Laušević, Zoran; Laušević, Mila

(Indian Acad Sciences, Bangalore, 2007)

TY  - JOUR
AU  - Perić-Grujić, Aleksandra
AU  - Nešković, Olivera M.
AU  - Veljković, Miomir V.
AU  - Laušević, Zoran
AU  - Laušević, Mila
PY  - 2007
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1150
AB  - In this work, the influence of silver and palladium on the surface of undoped, boron doped and phosphorus doped glassy carbon has been studied. The silver and palladium concentrations in solution, after metal deposition, were measured by atomic absorption spectrophotometer. The morphology of metal coatings was characterized by scanning electron microscopy. In order to investigate the nature and thermal stability of surface oxygen groups, temperature-programmed desorption method combined with mass spectrometric analyses, was performed. The results obtained have shown that silver and palladium spontaneously deposit from their salt solutions at the surface of glassy carbon samples. Silver deposits have dendrite structure, whilst palladium forms separate clusters. The highest amount of both silver and palladium deposits at the surface of sample containing the highest quantity of surface oxide complexes. It has been concluded that carboxyl groups and structure defects are responsible for metal reduction. Calculated desorption energies have shown that the surface modification by metal deposition leads to the formation of more stable surface of undoped and doped glassy carbon samples.
PB  - Indian Acad Sciences, Bangalore
T2  - Bulletin of Materials Science
T1  - Surface characterization of silver and palladium modified glassy carbon
EP  - 593
IS  - 6
SP  - 587
VL  - 30
DO  - 10.1007/s12034-007-0093-7
ER  - 
@article{
author = "Perić-Grujić, Aleksandra and Nešković, Olivera M. and Veljković, Miomir V. and Laušević, Zoran and Laušević, Mila",
year = "2007",
abstract = "In this work, the influence of silver and palladium on the surface of undoped, boron doped and phosphorus doped glassy carbon has been studied. The silver and palladium concentrations in solution, after metal deposition, were measured by atomic absorption spectrophotometer. The morphology of metal coatings was characterized by scanning electron microscopy. In order to investigate the nature and thermal stability of surface oxygen groups, temperature-programmed desorption method combined with mass spectrometric analyses, was performed. The results obtained have shown that silver and palladium spontaneously deposit from their salt solutions at the surface of glassy carbon samples. Silver deposits have dendrite structure, whilst palladium forms separate clusters. The highest amount of both silver and palladium deposits at the surface of sample containing the highest quantity of surface oxide complexes. It has been concluded that carboxyl groups and structure defects are responsible for metal reduction. Calculated desorption energies have shown that the surface modification by metal deposition leads to the formation of more stable surface of undoped and doped glassy carbon samples.",
publisher = "Indian Acad Sciences, Bangalore",
journal = "Bulletin of Materials Science",
title = "Surface characterization of silver and palladium modified glassy carbon",
pages = "593-587",
number = "6",
volume = "30",
doi = "10.1007/s12034-007-0093-7"
}
Perić-Grujić, A., Nešković, O. M., Veljković, M. V., Laušević, Z.,& Laušević, M.. (2007). Surface characterization of silver and palladium modified glassy carbon. in Bulletin of Materials Science
Indian Acad Sciences, Bangalore., 30(6), 587-593.
https://doi.org/10.1007/s12034-007-0093-7
Perić-Grujić A, Nešković OM, Veljković MV, Laušević Z, Laušević M. Surface characterization of silver and palladium modified glassy carbon. in Bulletin of Materials Science. 2007;30(6):587-593.
doi:10.1007/s12034-007-0093-7 .
Perić-Grujić, Aleksandra, Nešković, Olivera M., Veljković, Miomir V., Laušević, Zoran, Laušević, Mila, "Surface characterization of silver and palladium modified glassy carbon" in Bulletin of Materials Science, 30, no. 6 (2007):587-593,
https://doi.org/10.1007/s12034-007-0093-7 . .
5
5
5

Formation of oxygen complexes in controlled atmosphere at surface of doped glassy carbon

Perić-Grujić, Aleksandra; Vasiljević, Tatjana; Nešković, Olivera M.; Veljković, Miomir V.; Laušević, Zoran; Laušević, Mila

(Indian Acad Sciences, Bangalore, 2006)

TY  - JOUR
AU  - Perić-Grujić, Aleksandra
AU  - Vasiljević, Tatjana
AU  - Nešković, Olivera M.
AU  - Veljković, Miomir V.
AU  - Laušević, Zoran
AU  - Laušević, Mila
PY  - 2006
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/958
AB  - The effects of boron and phosphorus incorporation in phenolic resin precursor to the oxidation resistance of glassy carbon have been studied. In order to reveal the nature and composition of the oxygen complexes formed at the surface of doped glassy carbon, under controlled atmosphere, the surface of the samples was cleaned under vacuum up to 1273 K. Specific functional groups, subsequently formed under dry CO2 or O-2 atmosphere on the surface of boron-doped and phosphorus-doped glassy carbon samples, were examined using the temperature-programmed desorption method combined with mass spectrometric analysis. Characterization of surface properties of undoped and doped samples has shown that in the presence of either boron or phosphorus heteroatoms, a lower amount of oxygen complexes formed after CO2 exposure, while, typically, higher amount of oxygen complexes formed after O-2 exposure. It has been concluded that the surface of undoped glassy carbon has a greater affinity towards CO2, while in the presence of either boron or phosphorus heteroatoms, the glassy carbon surface affinity becomes greater towards O-2, under experimental conditions.
PB  - Indian Acad Sciences, Bangalore
T2  - Bulletin of Materials Science
T1  - Formation of oxygen complexes in controlled atmosphere at surface of doped glassy carbon
EP  - 473
IS  - 5
SP  - 467
VL  - 29
DO  - 10.1007/BF02914077
ER  - 
@article{
author = "Perić-Grujić, Aleksandra and Vasiljević, Tatjana and Nešković, Olivera M. and Veljković, Miomir V. and Laušević, Zoran and Laušević, Mila",
year = "2006",
abstract = "The effects of boron and phosphorus incorporation in phenolic resin precursor to the oxidation resistance of glassy carbon have been studied. In order to reveal the nature and composition of the oxygen complexes formed at the surface of doped glassy carbon, under controlled atmosphere, the surface of the samples was cleaned under vacuum up to 1273 K. Specific functional groups, subsequently formed under dry CO2 or O-2 atmosphere on the surface of boron-doped and phosphorus-doped glassy carbon samples, were examined using the temperature-programmed desorption method combined with mass spectrometric analysis. Characterization of surface properties of undoped and doped samples has shown that in the presence of either boron or phosphorus heteroatoms, a lower amount of oxygen complexes formed after CO2 exposure, while, typically, higher amount of oxygen complexes formed after O-2 exposure. It has been concluded that the surface of undoped glassy carbon has a greater affinity towards CO2, while in the presence of either boron or phosphorus heteroatoms, the glassy carbon surface affinity becomes greater towards O-2, under experimental conditions.",
publisher = "Indian Acad Sciences, Bangalore",
journal = "Bulletin of Materials Science",
title = "Formation of oxygen complexes in controlled atmosphere at surface of doped glassy carbon",
pages = "473-467",
number = "5",
volume = "29",
doi = "10.1007/BF02914077"
}
Perić-Grujić, A., Vasiljević, T., Nešković, O. M., Veljković, M. V., Laušević, Z.,& Laušević, M.. (2006). Formation of oxygen complexes in controlled atmosphere at surface of doped glassy carbon. in Bulletin of Materials Science
Indian Acad Sciences, Bangalore., 29(5), 467-473.
https://doi.org/10.1007/BF02914077
Perić-Grujić A, Vasiljević T, Nešković OM, Veljković MV, Laušević Z, Laušević M. Formation of oxygen complexes in controlled atmosphere at surface of doped glassy carbon. in Bulletin of Materials Science. 2006;29(5):467-473.
doi:10.1007/BF02914077 .
Perić-Grujić, Aleksandra, Vasiljević, Tatjana, Nešković, Olivera M., Veljković, Miomir V., Laušević, Zoran, Laušević, Mila, "Formation of oxygen complexes in controlled atmosphere at surface of doped glassy carbon" in Bulletin of Materials Science, 29, no. 5 (2006):467-473,
https://doi.org/10.1007/BF02914077 . .
1
1
1