Scepanović, Maja

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orcid::0000-0002-6791-5622
  • Scepanović, Maja (6)
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Author's Bibliography

Cracking caused by cutting of plasma-sprayed hydroxyapatite coatings and its relation to the structural features of coatings deposited at different initial substrate temperatures

Gligorijević, Bojan; Vilotijević, Miroljub N.; Scepanović, Maja; Radovanović, Radovan V.; Radović, Nenad

(Savez hemijskih inženjera, Beograd, 2017)

TY  - JOUR
AU  - Gligorijević, Bojan
AU  - Vilotijević, Miroljub N.
AU  - Scepanović, Maja
AU  - Radovanović, Radovan V.
AU  - Radović, Nenad
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3562
AB  - The present study estimated the cracking phenomenon in as-plasma-sprayed hydroxylapatite coatings (HACs) after they were being subjected to the severe cutting conditions in the direction perpendicular to the coating/substrate interface. In order to evaluate the effects of substrate preheating on the occurrence of micro-cracks, the HACs were deposited at different initial substrate temperatures (T-S = 20, 100 and 200 degrees C). The changes in phase composition and HA splat morphology with T-S were observed and were correlated with the cracking occurrence. The results showed that severe cutting conditions introduced a localized cracking in the regions of HACs dominantly attributed to the brittle hydroxyl- deficient amorphous calcium phosphate (ACP) phase. This effect was particularly observable in the HACs deposited without preheating of substrate. On the other hand, the preheating of substrate reduced the presence of micro-cracks and caused insignificant changes in the average local phase composition. In HACs deposited with preheating of substrate, the HA splats (of which HACs are composed) were thinner and recrystallized HA regions seemed smaller in size and more evenly distributed. These results implied potentially important roles of the HA splat formation mechanism on the distribution of ACP and recrystallized HA regions in the as-plasma-sprayed HACs and the cracking resistance of HACs.
PB  - Savez hemijskih inženjera, Beograd
T2  - Hemijska industrija
T1  - Cracking caused by cutting of plasma-sprayed hydroxyapatite coatings and its relation to the structural features of coatings deposited at different initial substrate temperatures
EP  - 249
IS  - 3
SP  - 241
VL  - 71
DO  - 10.2298/HEMIND160513034G
ER  - 
@article{
author = "Gligorijević, Bojan and Vilotijević, Miroljub N. and Scepanović, Maja and Radovanović, Radovan V. and Radović, Nenad",
year = "2017",
abstract = "The present study estimated the cracking phenomenon in as-plasma-sprayed hydroxylapatite coatings (HACs) after they were being subjected to the severe cutting conditions in the direction perpendicular to the coating/substrate interface. In order to evaluate the effects of substrate preheating on the occurrence of micro-cracks, the HACs were deposited at different initial substrate temperatures (T-S = 20, 100 and 200 degrees C). The changes in phase composition and HA splat morphology with T-S were observed and were correlated with the cracking occurrence. The results showed that severe cutting conditions introduced a localized cracking in the regions of HACs dominantly attributed to the brittle hydroxyl- deficient amorphous calcium phosphate (ACP) phase. This effect was particularly observable in the HACs deposited without preheating of substrate. On the other hand, the preheating of substrate reduced the presence of micro-cracks and caused insignificant changes in the average local phase composition. In HACs deposited with preheating of substrate, the HA splats (of which HACs are composed) were thinner and recrystallized HA regions seemed smaller in size and more evenly distributed. These results implied potentially important roles of the HA splat formation mechanism on the distribution of ACP and recrystallized HA regions in the as-plasma-sprayed HACs and the cracking resistance of HACs.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Hemijska industrija",
title = "Cracking caused by cutting of plasma-sprayed hydroxyapatite coatings and its relation to the structural features of coatings deposited at different initial substrate temperatures",
pages = "249-241",
number = "3",
volume = "71",
doi = "10.2298/HEMIND160513034G"
}
Gligorijević, B., Vilotijević, M. N., Scepanović, M., Radovanović, R. V.,& Radović, N.. (2017). Cracking caused by cutting of plasma-sprayed hydroxyapatite coatings and its relation to the structural features of coatings deposited at different initial substrate temperatures. in Hemijska industrija
Savez hemijskih inženjera, Beograd., 71(3), 241-249.
https://doi.org/10.2298/HEMIND160513034G
Gligorijević B, Vilotijević MN, Scepanović M, Radovanović RV, Radović N. Cracking caused by cutting of plasma-sprayed hydroxyapatite coatings and its relation to the structural features of coatings deposited at different initial substrate temperatures. in Hemijska industrija. 2017;71(3):241-249.
doi:10.2298/HEMIND160513034G .
Gligorijević, Bojan, Vilotijević, Miroljub N., Scepanović, Maja, Radovanović, Radovan V., Radović, Nenad, "Cracking caused by cutting of plasma-sprayed hydroxyapatite coatings and its relation to the structural features of coatings deposited at different initial substrate temperatures" in Hemijska industrija, 71, no. 3 (2017):241-249,
https://doi.org/10.2298/HEMIND160513034G . .

Sol-gel Synthesis of Anatase Nanopowders for Efficient Photocatalytic Degradation of Herbicide Clomazone in Aqueous Media

Golubović, Aleksandar; Simović, Bojana; Gašić, Slavica; Mijin, Dušan; Matković, Aleksandar; Babić, Biljana M.; Scepanović, Maja

(Međunarodni Institut za nauku o sinterovanju, Beograd, 2017)

TY  - JOUR
AU  - Golubović, Aleksandar
AU  - Simović, Bojana
AU  - Gašić, Slavica
AU  - Mijin, Dušan
AU  - Matković, Aleksandar
AU  - Babić, Biljana M.
AU  - Scepanović, Maja
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3628
AB  - TiO2 nanopowders were produced by sol-gel technique using TiCl4 as a starting material. For the preparation of crystalline anatase with developed surface area, this aqueous solution has been mixed with 0.05 M or 0.07 M (NH4)(2)SO4 solution in a temperature-controlled bath. The pH values of the suspension were 7, 8 or 9. According to the x-ray diffraction (XRD) analysis the anatase crystallite sizes were about 12 nm, which coincided with the average particle size revealed by scanning electron microscopy (SEM). The Raman scattering measurements have shown the presence of a small amount of highly disordered brookite phase in addition to dominant anatase phase with similar nanostructure in all synthesized powders. BET measurements revealed that all synthesized catalysts were fully mesoporous, except the sample synthesized with 0.07 M (NH4)(2)SO4 at pH=9, which had small amount of micropores. The photocatalytic degradation of herbicide Clomazone was carried out for both the pure active substance and as the commercial product (GAMIT 4-EC) under UV irradiation. The best photocatalytic efficiency was obtained for the catalyst with the largest specific surface area, confirming this parameter as crucial for enhanced photocatalytic degradation of the pure active substance and commercial product of herbicide Clomazone.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Sol-gel Synthesis of Anatase Nanopowders for Efficient Photocatalytic Degradation of Herbicide Clomazone in Aqueous Media
EP  - 330
IS  - 3
SP  - 319
VL  - 49
DO  - 10.2298/SOS1703319G
ER  - 
@article{
author = "Golubović, Aleksandar and Simović, Bojana and Gašić, Slavica and Mijin, Dušan and Matković, Aleksandar and Babić, Biljana M. and Scepanović, Maja",
year = "2017",
abstract = "TiO2 nanopowders were produced by sol-gel technique using TiCl4 as a starting material. For the preparation of crystalline anatase with developed surface area, this aqueous solution has been mixed with 0.05 M or 0.07 M (NH4)(2)SO4 solution in a temperature-controlled bath. The pH values of the suspension were 7, 8 or 9. According to the x-ray diffraction (XRD) analysis the anatase crystallite sizes were about 12 nm, which coincided with the average particle size revealed by scanning electron microscopy (SEM). The Raman scattering measurements have shown the presence of a small amount of highly disordered brookite phase in addition to dominant anatase phase with similar nanostructure in all synthesized powders. BET measurements revealed that all synthesized catalysts were fully mesoporous, except the sample synthesized with 0.07 M (NH4)(2)SO4 at pH=9, which had small amount of micropores. The photocatalytic degradation of herbicide Clomazone was carried out for both the pure active substance and as the commercial product (GAMIT 4-EC) under UV irradiation. The best photocatalytic efficiency was obtained for the catalyst with the largest specific surface area, confirming this parameter as crucial for enhanced photocatalytic degradation of the pure active substance and commercial product of herbicide Clomazone.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Sol-gel Synthesis of Anatase Nanopowders for Efficient Photocatalytic Degradation of Herbicide Clomazone in Aqueous Media",
pages = "330-319",
number = "3",
volume = "49",
doi = "10.2298/SOS1703319G"
}
Golubović, A., Simović, B., Gašić, S., Mijin, D., Matković, A., Babić, B. M.,& Scepanović, M.. (2017). Sol-gel Synthesis of Anatase Nanopowders for Efficient Photocatalytic Degradation of Herbicide Clomazone in Aqueous Media. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 49(3), 319-330.
https://doi.org/10.2298/SOS1703319G
Golubović A, Simović B, Gašić S, Mijin D, Matković A, Babić BM, Scepanović M. Sol-gel Synthesis of Anatase Nanopowders for Efficient Photocatalytic Degradation of Herbicide Clomazone in Aqueous Media. in Science of Sintering. 2017;49(3):319-330.
doi:10.2298/SOS1703319G .
Golubović, Aleksandar, Simović, Bojana, Gašić, Slavica, Mijin, Dušan, Matković, Aleksandar, Babić, Biljana M., Scepanović, Maja, "Sol-gel Synthesis of Anatase Nanopowders for Efficient Photocatalytic Degradation of Herbicide Clomazone in Aqueous Media" in Science of Sintering, 49, no. 3 (2017):319-330,
https://doi.org/10.2298/SOS1703319G . .
2
2

Surface structural heterogeneity of high power plasma-sprayed hydroxyapatite coatings

Gligorijević, Bojan; Vilotijević, Miroljub N.; Scepanović, Maja; Vidović, Dragoslav; Radović, Nenad

(Elsevier Science Sa, Lausanne, 2016)

TY  - JOUR
AU  - Gligorijević, Bojan
AU  - Vilotijević, Miroljub N.
AU  - Scepanović, Maja
AU  - Vidović, Dragoslav
AU  - Radović, Nenad
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3338
AB  - The aim of this work was to examine the dependence of the local surface structure (surface structural heterogeneity) on the local thickness (thickness uniformity) and structure properties along the thickness of hydroxyapatite coatings (HACs) deposited by using the high power (52 kW) laminar plasma jet. For the deposition process, a relatively small size of the feedstock hydroxyapatite powder (HAP) (33 mu m) was used. The HACs were deposited at different stand-off distances (SODs) (80, 100, and 150 mm) without preheating of substrates. The thickness measurements were performed by using the calibrated micrometer and light microscopy (LM). The surface micro-structure was analyzed by using the micro-Raman spectroscopy (MRS), whereas the micro-structure along the thickness of HACs was studied by using the MRS, X-ray powder diffractometry (XRPD), and LM (combined with chemical etching). The results showed a heterogeneous phase distribution on the surface of each HAC analyzed as well as the non-uniform thickness of HACs. Apparently, a correlation existed between the local surface structure and the local thickness of HACs. However, the MRS, XRPD, and LM analyses of micro-structure along the thickness of HACs indicated that the differences in the local surface structure could be related to the different recrystallization established during the plasma deposition process in the different parts along the thickness of each HAC analyzed.
PB  - Elsevier Science Sa, Lausanne
T2  - Journal of Alloys and Compounds
T1  - Surface structural heterogeneity of high power plasma-sprayed hydroxyapatite coatings
EP  - 430
SP  - 421
VL  - 687
DO  - 10.1016/j.jallcom.2016.06.163
ER  - 
@article{
author = "Gligorijević, Bojan and Vilotijević, Miroljub N. and Scepanović, Maja and Vidović, Dragoslav and Radović, Nenad",
year = "2016",
abstract = "The aim of this work was to examine the dependence of the local surface structure (surface structural heterogeneity) on the local thickness (thickness uniformity) and structure properties along the thickness of hydroxyapatite coatings (HACs) deposited by using the high power (52 kW) laminar plasma jet. For the deposition process, a relatively small size of the feedstock hydroxyapatite powder (HAP) (33 mu m) was used. The HACs were deposited at different stand-off distances (SODs) (80, 100, and 150 mm) without preheating of substrates. The thickness measurements were performed by using the calibrated micrometer and light microscopy (LM). The surface micro-structure was analyzed by using the micro-Raman spectroscopy (MRS), whereas the micro-structure along the thickness of HACs was studied by using the MRS, X-ray powder diffractometry (XRPD), and LM (combined with chemical etching). The results showed a heterogeneous phase distribution on the surface of each HAC analyzed as well as the non-uniform thickness of HACs. Apparently, a correlation existed between the local surface structure and the local thickness of HACs. However, the MRS, XRPD, and LM analyses of micro-structure along the thickness of HACs indicated that the differences in the local surface structure could be related to the different recrystallization established during the plasma deposition process in the different parts along the thickness of each HAC analyzed.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Journal of Alloys and Compounds",
title = "Surface structural heterogeneity of high power plasma-sprayed hydroxyapatite coatings",
pages = "430-421",
volume = "687",
doi = "10.1016/j.jallcom.2016.06.163"
}
Gligorijević, B., Vilotijević, M. N., Scepanović, M., Vidović, D.,& Radović, N.. (2016). Surface structural heterogeneity of high power plasma-sprayed hydroxyapatite coatings. in Journal of Alloys and Compounds
Elsevier Science Sa, Lausanne., 687, 421-430.
https://doi.org/10.1016/j.jallcom.2016.06.163
Gligorijević B, Vilotijević MN, Scepanović M, Vidović D, Radović N. Surface structural heterogeneity of high power plasma-sprayed hydroxyapatite coatings. in Journal of Alloys and Compounds. 2016;687:421-430.
doi:10.1016/j.jallcom.2016.06.163 .
Gligorijević, Bojan, Vilotijević, Miroljub N., Scepanović, Maja, Vidović, Dragoslav, Radović, Nenad, "Surface structural heterogeneity of high power plasma-sprayed hydroxyapatite coatings" in Journal of Alloys and Compounds, 687 (2016):421-430,
https://doi.org/10.1016/j.jallcom.2016.06.163 . .
18
13
21

Substrate preheating and structural properties of power plasma sprayed hydroxyapatite coatings

Gligorijević, Bojan; Vilotijević, Miroljub N.; Scepanović, Maja; Vuković, Nikola S.; Radović, Nenad

(Elsevier Sci Ltd, Oxford, 2016)

TY  - JOUR
AU  - Gligorijević, Bojan
AU  - Vilotijević, Miroljub N.
AU  - Scepanović, Maja
AU  - Vuković, Nikola S.
AU  - Radović, Nenad
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3403
AB  - The aim of the present study was to investigate the influence of substrate preheating on the structural properties of hydroxyapatite coatings (HACs) deposited by using the high power (52 kW) laminar plasma jet. The deposition experiments were performed within the 20-200 degrees C temperature range at different stand-off distances. The structural properties in the thickness direction and at the surface of the HACs were investigated by using the micro-Raman spectroscopy, scanning electron microscopy coupled with energy dispersive spectrometry, and X-ray powder diffractometry. The deposition without the preheating of the substrate produced HACs with crystallinity gradient in the thickness direction. At the stand-off distance of 80 mm, the preheating of the substrate at 200 degrees C practically eliminated the crystallinity gradient. At distances from the coating/substrate interface shorter than similar to 100 mu m, the increase of crystallinity with the preheating of the substrate was dominantly attributed to the recrystallization of hydroxyl-rich ACP into HA. At longer distances and higher initial substrate temperatures (  gt  100 degrees C), the crystallinity changes were negligible, whereas the recrystallization of hydroxyl-deficient ACP into oxyapatite (OA) was also possible. The X-ray diffractometry indicated the deposition conditions under which a minimum residual stress was achieved. The results of the present study strongly suggested the relation between the ACP - gt  HA remystallization process and the bonding strength of the HACs.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Substrate preheating and structural properties of power plasma sprayed hydroxyapatite coatings
EP  - 420
IS  - 1
SP  - 411
VL  - 42
DO  - 10.1016/j.ceramint.2015.08.125
ER  - 
@article{
author = "Gligorijević, Bojan and Vilotijević, Miroljub N. and Scepanović, Maja and Vuković, Nikola S. and Radović, Nenad",
year = "2016",
abstract = "The aim of the present study was to investigate the influence of substrate preheating on the structural properties of hydroxyapatite coatings (HACs) deposited by using the high power (52 kW) laminar plasma jet. The deposition experiments were performed within the 20-200 degrees C temperature range at different stand-off distances. The structural properties in the thickness direction and at the surface of the HACs were investigated by using the micro-Raman spectroscopy, scanning electron microscopy coupled with energy dispersive spectrometry, and X-ray powder diffractometry. The deposition without the preheating of the substrate produced HACs with crystallinity gradient in the thickness direction. At the stand-off distance of 80 mm, the preheating of the substrate at 200 degrees C practically eliminated the crystallinity gradient. At distances from the coating/substrate interface shorter than similar to 100 mu m, the increase of crystallinity with the preheating of the substrate was dominantly attributed to the recrystallization of hydroxyl-rich ACP into HA. At longer distances and higher initial substrate temperatures (  gt  100 degrees C), the crystallinity changes were negligible, whereas the recrystallization of hydroxyl-deficient ACP into oxyapatite (OA) was also possible. The X-ray diffractometry indicated the deposition conditions under which a minimum residual stress was achieved. The results of the present study strongly suggested the relation between the ACP - gt  HA remystallization process and the bonding strength of the HACs.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Substrate preheating and structural properties of power plasma sprayed hydroxyapatite coatings",
pages = "420-411",
number = "1",
volume = "42",
doi = "10.1016/j.ceramint.2015.08.125"
}
Gligorijević, B., Vilotijević, M. N., Scepanović, M., Vuković, N. S.,& Radović, N.. (2016). Substrate preheating and structural properties of power plasma sprayed hydroxyapatite coatings. in Ceramics International
Elsevier Sci Ltd, Oxford., 42(1), 411-420.
https://doi.org/10.1016/j.ceramint.2015.08.125
Gligorijević B, Vilotijević MN, Scepanović M, Vuković NS, Radović N. Substrate preheating and structural properties of power plasma sprayed hydroxyapatite coatings. in Ceramics International. 2016;42(1):411-420.
doi:10.1016/j.ceramint.2015.08.125 .
Gligorijević, Bojan, Vilotijević, Miroljub N., Scepanović, Maja, Vuković, Nikola S., Radović, Nenad, "Substrate preheating and structural properties of power plasma sprayed hydroxyapatite coatings" in Ceramics International, 42, no. 1 (2016):411-420,
https://doi.org/10.1016/j.ceramint.2015.08.125 . .
25
17
27

Influence of some sol-gel synthesis parameters of mesoporous tio2 on photocatalytic degradation of pollutants

Golubović, Aleksandar; Veljković, Ivana; Scepanović, Maja; Grujić-Brojčin, Mirjana; Tomić, Nataša M.; Mijin, Dušan; Babić, Biljana M.

(Savez hemijskih inženjera, Beograd, 2016)

TY  - JOUR
AU  - Golubović, Aleksandar
AU  - Veljković, Ivana
AU  - Scepanović, Maja
AU  - Grujić-Brojčin, Mirjana
AU  - Tomić, Nataša M.
AU  - Mijin, Dušan
AU  - Babić, Biljana M.
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3436
AB  - Titanium dioxide (TiO2) nanopowders were produced by sol-gel technique from tetrabutyl titanate as a precursor by varying some parameters of the sol-gel synthesis, such as temperature (500 and 550 degrees C) and the duration of calcination (1.5, 2 and 2.5 h). X-ray powder diffraction (XRPD) results have shown that all synthesized nanopowders were dominantly in the anatase phase, with the presence of a small amount of rutile in samples calcined at 550 degrees C. According to the results obtained by the Williamson-Hall method, the anatase crystallite size was increased with the duration of the calcination (from 24 to 29 nm in samples calcined at lower temperature, and from 30 to 35 nm in samples calcined at higher temperature). The analysis of the shift and line-width of the most intensive anatase Eg Raman mode confirmed the XRPD results. The analysis of pore structure from nitrogen sorption experimental data described all samples as mesoporous, with mean pore diameters in the range of 5-8 nm. Nanopowder properties have been related to the photocatalytic activity, tested in degradation of the textile dye (C.I. Reactive Orange 16), car-bofuran ray scattering.
PB  - Savez hemijskih inženjera, Beograd
T2  - Chemical Industry & Chemical Engineering Quarterly
T1  - Influence of some sol-gel synthesis parameters of mesoporous tio2 on photocatalytic degradation of pollutants
EP  - 73
IS  - 1
SP  - 65
VL  - 22
DO  - 10.2298/CICEQ150110020G
ER  - 
@article{
author = "Golubović, Aleksandar and Veljković, Ivana and Scepanović, Maja and Grujić-Brojčin, Mirjana and Tomić, Nataša M. and Mijin, Dušan and Babić, Biljana M.",
year = "2016",
abstract = "Titanium dioxide (TiO2) nanopowders were produced by sol-gel technique from tetrabutyl titanate as a precursor by varying some parameters of the sol-gel synthesis, such as temperature (500 and 550 degrees C) and the duration of calcination (1.5, 2 and 2.5 h). X-ray powder diffraction (XRPD) results have shown that all synthesized nanopowders were dominantly in the anatase phase, with the presence of a small amount of rutile in samples calcined at 550 degrees C. According to the results obtained by the Williamson-Hall method, the anatase crystallite size was increased with the duration of the calcination (from 24 to 29 nm in samples calcined at lower temperature, and from 30 to 35 nm in samples calcined at higher temperature). The analysis of the shift and line-width of the most intensive anatase Eg Raman mode confirmed the XRPD results. The analysis of pore structure from nitrogen sorption experimental data described all samples as mesoporous, with mean pore diameters in the range of 5-8 nm. Nanopowder properties have been related to the photocatalytic activity, tested in degradation of the textile dye (C.I. Reactive Orange 16), car-bofuran ray scattering.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Chemical Industry & Chemical Engineering Quarterly",
title = "Influence of some sol-gel synthesis parameters of mesoporous tio2 on photocatalytic degradation of pollutants",
pages = "73-65",
number = "1",
volume = "22",
doi = "10.2298/CICEQ150110020G"
}
Golubović, A., Veljković, I., Scepanović, M., Grujić-Brojčin, M., Tomić, N. M., Mijin, D.,& Babić, B. M.. (2016). Influence of some sol-gel synthesis parameters of mesoporous tio2 on photocatalytic degradation of pollutants. in Chemical Industry & Chemical Engineering Quarterly
Savez hemijskih inženjera, Beograd., 22(1), 65-73.
https://doi.org/10.2298/CICEQ150110020G
Golubović A, Veljković I, Scepanović M, Grujić-Brojčin M, Tomić NM, Mijin D, Babić BM. Influence of some sol-gel synthesis parameters of mesoporous tio2 on photocatalytic degradation of pollutants. in Chemical Industry & Chemical Engineering Quarterly. 2016;22(1):65-73.
doi:10.2298/CICEQ150110020G .
Golubović, Aleksandar, Veljković, Ivana, Scepanović, Maja, Grujić-Brojčin, Mirjana, Tomić, Nataša M., Mijin, Dušan, Babić, Biljana M., "Influence of some sol-gel synthesis parameters of mesoporous tio2 on photocatalytic degradation of pollutants" in Chemical Industry & Chemical Engineering Quarterly, 22, no. 1 (2016):65-73,
https://doi.org/10.2298/CICEQ150110020G . .
2
3
3

Synthesis of Anatase Nanopowders by Sol-gel Method and Influence of Temperatures of Calcination to Their Photocatalitic Properties

Golubović, Aleksandar; Simović, Bojana; Scepanović, Maja; Mijin, Dušan; Matković, Aleksandar; Grujić-Brojčin, Mirjana; Babić, Biljana M.

(Međunarodni Institut za nauku o sinterovanju, Beograd, 2015)

TY  - JOUR
AU  - Golubović, Aleksandar
AU  - Simović, Bojana
AU  - Scepanović, Maja
AU  - Mijin, Dušan
AU  - Matković, Aleksandar
AU  - Grujić-Brojčin, Mirjana
AU  - Babić, Biljana M.
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2985
AB  - The titanium dioxide (TiO2) nanopowders were produced by sol-gel technique from tetrabutyl titanate as a precursor, varying the temperature of calcination (from 500 to 550 degrees C with the step of 10 degrees C). XRPD results have shown that all synthesized nanopowders are dominantly in anatase phase. The analysis of the shift and linewidth of the most intensive anatase E-g Raman mode confirmed the XRPD results and added the presence of small amount of highly disordered brookite phase in all samples. The analysis of pore structure from nitrogen sorption experimental data described all samples as mesoporous, with mean pore diameters in the range of 1.5 and 4.5 nm. Nanopowder properties have been related to the photocatalytic activity, tested in degradation of the textile dye (C.I. Reactive Orange 16). The sample calcined at temperature of 510 degrees C showed the best photocatalytic performance.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Synthesis of Anatase Nanopowders by Sol-gel Method and Influence of Temperatures of Calcination to Their Photocatalitic Properties
EP  - 49
IS  - 1
SP  - 41
VL  - 47
DO  - 10.2298/SOS1501041G
ER  - 
@article{
author = "Golubović, Aleksandar and Simović, Bojana and Scepanović, Maja and Mijin, Dušan and Matković, Aleksandar and Grujić-Brojčin, Mirjana and Babić, Biljana M.",
year = "2015",
abstract = "The titanium dioxide (TiO2) nanopowders were produced by sol-gel technique from tetrabutyl titanate as a precursor, varying the temperature of calcination (from 500 to 550 degrees C with the step of 10 degrees C). XRPD results have shown that all synthesized nanopowders are dominantly in anatase phase. The analysis of the shift and linewidth of the most intensive anatase E-g Raman mode confirmed the XRPD results and added the presence of small amount of highly disordered brookite phase in all samples. The analysis of pore structure from nitrogen sorption experimental data described all samples as mesoporous, with mean pore diameters in the range of 1.5 and 4.5 nm. Nanopowder properties have been related to the photocatalytic activity, tested in degradation of the textile dye (C.I. Reactive Orange 16). The sample calcined at temperature of 510 degrees C showed the best photocatalytic performance.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Synthesis of Anatase Nanopowders by Sol-gel Method and Influence of Temperatures of Calcination to Their Photocatalitic Properties",
pages = "49-41",
number = "1",
volume = "47",
doi = "10.2298/SOS1501041G"
}
Golubović, A., Simović, B., Scepanović, M., Mijin, D., Matković, A., Grujić-Brojčin, M.,& Babić, B. M.. (2015). Synthesis of Anatase Nanopowders by Sol-gel Method and Influence of Temperatures of Calcination to Their Photocatalitic Properties. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 47(1), 41-49.
https://doi.org/10.2298/SOS1501041G
Golubović A, Simović B, Scepanović M, Mijin D, Matković A, Grujić-Brojčin M, Babić BM. Synthesis of Anatase Nanopowders by Sol-gel Method and Influence of Temperatures of Calcination to Their Photocatalitic Properties. in Science of Sintering. 2015;47(1):41-49.
doi:10.2298/SOS1501041G .
Golubović, Aleksandar, Simović, Bojana, Scepanović, Maja, Mijin, Dušan, Matković, Aleksandar, Grujić-Brojčin, Mirjana, Babić, Biljana M., "Synthesis of Anatase Nanopowders by Sol-gel Method and Influence of Temperatures of Calcination to Their Photocatalitic Properties" in Science of Sintering, 47, no. 1 (2015):41-49,
https://doi.org/10.2298/SOS1501041G . .
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