Infrared study of laser synthesized anatase TiO2 nanopowders
Нема приказа
Аутори
Grujić-Brojčin, MirjanaScepanovic, MJ
Dohcevic-Mitrovic, ZD
Hinic, I
Matović, Branko
Stanisic, G
Popović, Zoran V.
Чланак у часопису
Метаподаци
Приказ свих података о документуАпстракт
Nanosized titanium dioxide (TiO2) is synthesized by laser-induced pyrolysis using titanium isopropoxide as a liquid precursor. The specific surface area of as-produced nanopowders measured by the Brunauer-Emmett-Teller method (BET) varies from 84 to 110 m(2)g(-1). X-ray diffraction (XRD) and Raman scattering, showed that the TiO2 nanocrystals had an anatase structure. The rain size of the nanoparticles was estimated from scanning electron microscopy, XRD and BET measurements. The reflection spectra of nanocrystalline TiO2 pressed pellets has been measured in the region between 80 and 1500 cm(-1) by Fourier transform infrared spectroscopy. To interpret the experimental results, a model based on a generalized Bruggeman effective medium approximation of a dielectric function has been proposed. It is based on the polycrystalline character of TIO2 nanoparticles including island-structure and porosity of the nanopowders, along with the anatase single crystal dielectric functions. Thus, by co...mparing the results of calculated and experimental infrared (IR) spectra, the values of microscopic parameters of nanocrystalline powders can be deduced.
Извор:
Journal of Physics. D: Applied Physics, 2005, 38, 9, 1415-1420
DOI: 10.1088/0022-3727/38/9/014
ISSN: 0022-3727; 1361-6463
WoS: 000229552500015
Scopus: 2-s2.0-24144467808
Колекције
Институција/група
VinčaTY - JOUR AU - Grujić-Brojčin, Mirjana AU - Scepanovic, MJ AU - Dohcevic-Mitrovic, ZD AU - Hinic, I AU - Matović, Branko AU - Stanisic, G AU - Popović, Zoran V. PY - 2005 UR - https://vinar.vin.bg.ac.rs/handle/123456789/2896 AB - Nanosized titanium dioxide (TiO2) is synthesized by laser-induced pyrolysis using titanium isopropoxide as a liquid precursor. The specific surface area of as-produced nanopowders measured by the Brunauer-Emmett-Teller method (BET) varies from 84 to 110 m(2)g(-1). X-ray diffraction (XRD) and Raman scattering, showed that the TiO2 nanocrystals had an anatase structure. The rain size of the nanoparticles was estimated from scanning electron microscopy, XRD and BET measurements. The reflection spectra of nanocrystalline TiO2 pressed pellets has been measured in the region between 80 and 1500 cm(-1) by Fourier transform infrared spectroscopy. To interpret the experimental results, a model based on a generalized Bruggeman effective medium approximation of a dielectric function has been proposed. It is based on the polycrystalline character of TIO2 nanoparticles including island-structure and porosity of the nanopowders, along with the anatase single crystal dielectric functions. Thus, by comparing the results of calculated and experimental infrared (IR) spectra, the values of microscopic parameters of nanocrystalline powders can be deduced. T2 - Journal of Physics. D: Applied Physics T1 - Infrared study of laser synthesized anatase TiO2 nanopowders VL - 38 IS - 9 SP - 1415 EP - 1420 DO - 10.1088/0022-3727/38/9/014 ER -
@article{ author = "Grujić-Brojčin, Mirjana and Scepanovic, MJ and Dohcevic-Mitrovic, ZD and Hinic, I and Matović, Branko and Stanisic, G and Popović, Zoran V.", year = "2005", abstract = "Nanosized titanium dioxide (TiO2) is synthesized by laser-induced pyrolysis using titanium isopropoxide as a liquid precursor. The specific surface area of as-produced nanopowders measured by the Brunauer-Emmett-Teller method (BET) varies from 84 to 110 m(2)g(-1). X-ray diffraction (XRD) and Raman scattering, showed that the TiO2 nanocrystals had an anatase structure. The rain size of the nanoparticles was estimated from scanning electron microscopy, XRD and BET measurements. The reflection spectra of nanocrystalline TiO2 pressed pellets has been measured in the region between 80 and 1500 cm(-1) by Fourier transform infrared spectroscopy. To interpret the experimental results, a model based on a generalized Bruggeman effective medium approximation of a dielectric function has been proposed. It is based on the polycrystalline character of TIO2 nanoparticles including island-structure and porosity of the nanopowders, along with the anatase single crystal dielectric functions. Thus, by comparing the results of calculated and experimental infrared (IR) spectra, the values of microscopic parameters of nanocrystalline powders can be deduced.", journal = "Journal of Physics. D: Applied Physics", title = "Infrared study of laser synthesized anatase TiO2 nanopowders", volume = "38", number = "9", pages = "1415-1420", doi = "10.1088/0022-3727/38/9/014" }
Grujić-Brojčin, M., Scepanovic, M., Dohcevic-Mitrovic, Z., Hinic, I., Matović, B., Stanisic, G.,& Popović, Z. V.. (2005). Infrared study of laser synthesized anatase TiO2 nanopowders. in Journal of Physics. D: Applied Physics, 38(9), 1415-1420. https://doi.org/10.1088/0022-3727/38/9/014
Grujić-Brojčin M, Scepanovic M, Dohcevic-Mitrovic Z, Hinic I, Matović B, Stanisic G, Popović ZV. Infrared study of laser synthesized anatase TiO2 nanopowders. in Journal of Physics. D: Applied Physics. 2005;38(9):1415-1420. doi:10.1088/0022-3727/38/9/014 .
Grujić-Brojčin, Mirjana, Scepanovic, MJ, Dohcevic-Mitrovic, ZD, Hinic, I, Matović, Branko, Stanisic, G, Popović, Zoran V., "Infrared study of laser synthesized anatase TiO2 nanopowders" in Journal of Physics. D: Applied Physics, 38, no. 9 (2005):1415-1420, https://doi.org/10.1088/0022-3727/38/9/014 . .