Tomic, Natasa

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  • Tomic, Natasa (3)
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Author's Bibliography

New composites based on waste PET and non-metallic fraction from waste printed circuit boards: Mechanical and thermal properties

Kovacevic, Tihomir; Rusmirović, Jelena D.; Tomic, Natasa; Marinović-Cincović, Milena; Kamberović, Željko; Tomić, Miloš; Marinković, Aleksandar D.

(2017)

TY  - JOUR
AU  - Kovacevic, Tihomir
AU  - Rusmirović, Jelena D.
AU  - Tomic, Natasa
AU  - Marinović-Cincović, Milena
AU  - Kamberović, Željko
AU  - Tomić, Miloš
AU  - Marinković, Aleksandar D.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1708
AB  - Influence of the addition of three different non-metallic fractions (NMF), obtained by processing of printed circuit boards (PCBs), on the mechanical and thermal properties of unsaturated polyester resin (UPR) based composites were studied in this paper. UPR, based on products of PET depolymerization, and NMF were characterized using FTIR, NMR, optical microscopy and SEM/EDS analysis. Cross-linking density (v), storage modulus (G), damping factor (tan delta) and glass transition temperature (T-g) of the composites were determined from the DMA testing. Tensile (sigma(t)) and flexural (sigma(f)) strength, and micro Vickers hardness indicated good composite performance under static load. Thermal and flame resistant properties were analyzed by TGA/DTG and UL-94 flammability test whereby V-2 category of appropriate composite was achieved. Composites with satisfactory mechanical and thermal properties reflected synergetic effect of constituents obtained from waste materials. (C) 2017 Elsevier Ltd. All rights reserved.
T2  - Composites: Part B: Engineering
T1  - New composites based on waste PET and non-metallic fraction from waste printed circuit boards: Mechanical and thermal properties
VL  - 127
SP  - 1
EP  - 14
DO  - 10.1016/j.compositesb.2017.06.020
ER  - 
@article{
author = "Kovacevic, Tihomir and Rusmirović, Jelena D. and Tomic, Natasa and Marinović-Cincović, Milena and Kamberović, Željko and Tomić, Miloš and Marinković, Aleksandar D.",
year = "2017",
abstract = "Influence of the addition of three different non-metallic fractions (NMF), obtained by processing of printed circuit boards (PCBs), on the mechanical and thermal properties of unsaturated polyester resin (UPR) based composites were studied in this paper. UPR, based on products of PET depolymerization, and NMF were characterized using FTIR, NMR, optical microscopy and SEM/EDS analysis. Cross-linking density (v), storage modulus (G), damping factor (tan delta) and glass transition temperature (T-g) of the composites were determined from the DMA testing. Tensile (sigma(t)) and flexural (sigma(f)) strength, and micro Vickers hardness indicated good composite performance under static load. Thermal and flame resistant properties were analyzed by TGA/DTG and UL-94 flammability test whereby V-2 category of appropriate composite was achieved. Composites with satisfactory mechanical and thermal properties reflected synergetic effect of constituents obtained from waste materials. (C) 2017 Elsevier Ltd. All rights reserved.",
journal = "Composites: Part B: Engineering",
title = "New composites based on waste PET and non-metallic fraction from waste printed circuit boards: Mechanical and thermal properties",
volume = "127",
pages = "1-14",
doi = "10.1016/j.compositesb.2017.06.020"
}
Kovacevic, T., Rusmirović, J. D., Tomic, N., Marinović-Cincović, M., Kamberović, Ž., Tomić, M.,& Marinković, A. D.. (2017). New composites based on waste PET and non-metallic fraction from waste printed circuit boards: Mechanical and thermal properties. in Composites: Part B: Engineering, 127, 1-14.
https://doi.org/10.1016/j.compositesb.2017.06.020
Kovacevic T, Rusmirović JD, Tomic N, Marinović-Cincović M, Kamberović Ž, Tomić M, Marinković AD. New composites based on waste PET and non-metallic fraction from waste printed circuit boards: Mechanical and thermal properties. in Composites: Part B: Engineering. 2017;127:1-14.
doi:10.1016/j.compositesb.2017.06.020 .
Kovacevic, Tihomir, Rusmirović, Jelena D., Tomic, Natasa, Marinović-Cincović, Milena, Kamberović, Željko, Tomić, Miloš, Marinković, Aleksandar D., "New composites based on waste PET and non-metallic fraction from waste printed circuit boards: Mechanical and thermal properties" in Composites: Part B: Engineering, 127 (2017):1-14,
https://doi.org/10.1016/j.compositesb.2017.06.020 . .
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WO3/TiO2 composite coatings: Structural, optical and photocatalytic properties

Dohčević-Mitrović, Zorana ; Stojadinovic, Stevan; Lozzi, Luca; Askrabic, Sonja; Rosić, Milena; Tomic, Natasa; Paunović, Novica M.; Lazovic, Sasa; Nikolić, Marko G.; Santucci, Sandro

(2016)

TY  - JOUR
AU  - Dohčević-Mitrović, Zorana 
AU  - Stojadinovic, Stevan
AU  - Lozzi, Luca
AU  - Askrabic, Sonja
AU  - Rosić, Milena
AU  - Tomic, Natasa
AU  - Paunović, Novica M.
AU  - Lazovic, Sasa
AU  - Nikolić, Marko G.
AU  - Santucci, Sandro
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1234
AB  - WO3/TiO2 and TiO2 coatings were prepared on titania substrates using facile and cost-effective plasma electrolytic oxidation process. The coatings were characterized by X-ray diffraction, scanning electron microscopy, Raman, UV vis diffuse reflectance spectroscopy, and X-ray photoelectron spectroscopy. With increasing duration of PEO process, the monoclinic WO3 phase became dominant and new monoclinic WO2.95 phase appeared. The optical absorption edge in the WO3/TiO2 samples, enriched with WO3/WO2.96 phase, was shifted to the visible region. The photocatalytic efficiency of WO3/TiO2 and pure TiO2 samples was evaluated by performing the photodegradation experiments in an aqueous solution of Rhodamine 6G and Mordant Blue 9 under the visible and UV light. The WO3/TiO2 catalysts are much more efficient than pure TiO2 under visible light and slightly better under UV light. The improvement of photocatalytic activity in the visible region is attributed to better light absorption, higher adsorption affinity and increased charge separation efficiency. (C) 2016 Elsevier Ltd. All rights reserved.
T2  - Materials Research Bulletin
T1  - WO3/TiO2 composite coatings: Structural, optical and photocatalytic properties
VL  - 83
SP  - 217
EP  - 224
DO  - 10.1016/j.materresbull.2016.06.011
ER  - 
@article{
author = "Dohčević-Mitrović, Zorana  and Stojadinovic, Stevan and Lozzi, Luca and Askrabic, Sonja and Rosić, Milena and Tomic, Natasa and Paunović, Novica M. and Lazovic, Sasa and Nikolić, Marko G. and Santucci, Sandro",
year = "2016",
abstract = "WO3/TiO2 and TiO2 coatings were prepared on titania substrates using facile and cost-effective plasma electrolytic oxidation process. The coatings were characterized by X-ray diffraction, scanning electron microscopy, Raman, UV vis diffuse reflectance spectroscopy, and X-ray photoelectron spectroscopy. With increasing duration of PEO process, the monoclinic WO3 phase became dominant and new monoclinic WO2.95 phase appeared. The optical absorption edge in the WO3/TiO2 samples, enriched with WO3/WO2.96 phase, was shifted to the visible region. The photocatalytic efficiency of WO3/TiO2 and pure TiO2 samples was evaluated by performing the photodegradation experiments in an aqueous solution of Rhodamine 6G and Mordant Blue 9 under the visible and UV light. The WO3/TiO2 catalysts are much more efficient than pure TiO2 under visible light and slightly better under UV light. The improvement of photocatalytic activity in the visible region is attributed to better light absorption, higher adsorption affinity and increased charge separation efficiency. (C) 2016 Elsevier Ltd. All rights reserved.",
journal = "Materials Research Bulletin",
title = "WO3/TiO2 composite coatings: Structural, optical and photocatalytic properties",
volume = "83",
pages = "217-224",
doi = "10.1016/j.materresbull.2016.06.011"
}
Dohčević-Mitrović, Z., Stojadinovic, S., Lozzi, L., Askrabic, S., Rosić, M., Tomic, N., Paunović, N. M., Lazovic, S., Nikolić, M. G.,& Santucci, S.. (2016). WO3/TiO2 composite coatings: Structural, optical and photocatalytic properties. in Materials Research Bulletin, 83, 217-224.
https://doi.org/10.1016/j.materresbull.2016.06.011
Dohčević-Mitrović Z, Stojadinovic S, Lozzi L, Askrabic S, Rosić M, Tomic N, Paunović NM, Lazovic S, Nikolić MG, Santucci S. WO3/TiO2 composite coatings: Structural, optical and photocatalytic properties. in Materials Research Bulletin. 2016;83:217-224.
doi:10.1016/j.materresbull.2016.06.011 .
Dohčević-Mitrović, Zorana , Stojadinovic, Stevan, Lozzi, Luca, Askrabic, Sonja, Rosić, Milena, Tomic, Natasa, Paunović, Novica M., Lazovic, Sasa, Nikolić, Marko G., Santucci, Sandro, "WO3/TiO2 composite coatings: Structural, optical and photocatalytic properties" in Materials Research Bulletin, 83 (2016):217-224,
https://doi.org/10.1016/j.materresbull.2016.06.011 . .
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Influence of Some Sol-Gel Synthesis Parameters of Mesoporous Tio2 on Photocatalytic Degradation of Pollutants

Golubović, Aleksandar V.; Veljkovic, Ivana; Šćepanović, Maja; Grujić-Brojčin, Mirjana; Tomic, Natasa; Mijin, Dušan Ž.; Babić, Biljana M.

(2016)

TY  - JOUR
AU  - Golubović, Aleksandar V.
AU  - Veljkovic, Ivana
AU  - Šćepanović, Maja
AU  - Grujić-Brojčin, Mirjana
AU  - Tomic, Natasa
AU  - Mijin, Dušan Ž.
AU  - Babić, Biljana M.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1020
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.
T2  - Chemical Industry and Chemical Engineering Quarterly / CICEQ
T1  - Influence of Some Sol-Gel Synthesis Parameters of Mesoporous Tio2 on Photocatalytic Degradation of Pollutants
VL  - 22
IS  - 1
SP  - 65
EP  - 73
DO  - 10.2298/CICEQ150110020G
ER  - 
@article{
author = "Golubović, Aleksandar V. and Veljkovic, Ivana and Šćepanović, Maja and Grujić-Brojčin, Mirjana and Tomic, Natasa and Mijin, Dušan Ž. 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.",
journal = "Chemical Industry and Chemical Engineering Quarterly / CICEQ",
title = "Influence of Some Sol-Gel Synthesis Parameters of Mesoporous Tio2 on Photocatalytic Degradation of Pollutants",
volume = "22",
number = "1",
pages = "65-73",
doi = "10.2298/CICEQ150110020G"
}
Golubović, A. V., Veljkovic, I., Šćepanović, M., Grujić-Brojčin, M., Tomic, N., Mijin, D. Ž.,& Babić, B. M.. (2016). Influence of Some Sol-Gel Synthesis Parameters of Mesoporous Tio2 on Photocatalytic Degradation of Pollutants. in Chemical Industry and Chemical Engineering Quarterly / CICEQ, 22(1), 65-73.
https://doi.org/10.2298/CICEQ150110020G
Golubović AV, Veljkovic I, Šćepanović M, Grujić-Brojčin M, Tomic N, Mijin DŽ, Babić BM. Influence of Some Sol-Gel Synthesis Parameters of Mesoporous Tio2 on Photocatalytic Degradation of Pollutants. in Chemical Industry and Chemical Engineering Quarterly / CICEQ. 2016;22(1):65-73.
doi:10.2298/CICEQ150110020G .
Golubović, Aleksandar V., Veljkovic, Ivana, Šćepanović, Maja, Grujić-Brojčin, Mirjana, Tomic, Natasa, Mijin, Dušan Ž., Babić, Biljana M., "Influence of Some Sol-Gel Synthesis Parameters of Mesoporous Tio2 on Photocatalytic Degradation of Pollutants" in Chemical Industry and Chemical Engineering Quarterly / CICEQ, 22, no. 1 (2016):65-73,
https://doi.org/10.2298/CICEQ150110020G . .
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