Dostanic, Jasmina M.

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  • Dostanic, Jasmina M. (1)
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Charge-transfer complex formation between TiO2 nanoparticles and thiosalicylic acid: A comprehensive experimental and DFT study

Milićević, Bojana R.; Đorđević, Vesna R.; Lončarević, Davor; Dostanic, Jasmina M.; Ahrenkiel, Scott Phillip; Dramićanin, Miroslav; Sredojević, Dušan; Švrakić, Nenad M.; Nedeljković, Jovan

(2017)

TY  - JOUR
AU  - Milićević, Bojana R.
AU  - Đorđević, Vesna R.
AU  - Lončarević, Davor
AU  - Dostanic, Jasmina M.
AU  - Ahrenkiel, Scott Phillip
AU  - Dramićanin, Miroslav
AU  - Sredojević, Dušan
AU  - Švrakić, Nenad M.
AU  - Nedeljković, Jovan
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1815
AB  - Under normal conditions, titanium dioxide does not absorb visible light photons due to large band gap. Nevertheless, when titanium dioxide nanoparticles (TiO2 NPs) are surface-modified with thiosalicylic acid (TSA), their optical properties are altered owing to the formation of charge transfer complex that initiates absorption in the visible spectral range. Colloidal and sol-gel techniques were used to synthesize uniform TiO2 NPs of different sizes (average diameters in the range 4-15 nm), and effects of their subsequent modification by TSA molecules were compared with effect of modification of commercial Degussa TiO2 powder. Thorough microstructural characterization of TiO2 nanoparticulates was performed including transmission electron microscopy (TEM) and X-ray diffraction (XRD) analysis, as well as nitrogen adsorption-desorption isotherms. Optical measurements revealed that all surface-modified TiO2 samples with TSA have similar spectral features independent of their morphological differences, and, more importantly, absorption onset of modified TiO2 samples was found to be red-shifted by 1.0 eV compared to the unmodified ones. The mode of binding between TSA and surface Ti atoms was analyzed by infrared spectroscopy. Finally, the quantum chemical calculations, based on density functional theory, were performed to support optical characterization of surface-modified TiO2 with TSA. (C) 2017 Elsevier B.V. All rights reserved.
T2  - Optical Materials
T1  - Charge-transfer complex formation between TiO2 nanoparticles and thiosalicylic acid: A comprehensive experimental and DFT study
VL  - 73
SP  - 163
EP  - 171
DO  - 10.1016/j.optmat.2017.08.011
ER  - 
@article{
author = "Milićević, Bojana R. and Đorđević, Vesna R. and Lončarević, Davor and Dostanic, Jasmina M. and Ahrenkiel, Scott Phillip and Dramićanin, Miroslav and Sredojević, Dušan and Švrakić, Nenad M. and Nedeljković, Jovan",
year = "2017",
abstract = "Under normal conditions, titanium dioxide does not absorb visible light photons due to large band gap. Nevertheless, when titanium dioxide nanoparticles (TiO2 NPs) are surface-modified with thiosalicylic acid (TSA), their optical properties are altered owing to the formation of charge transfer complex that initiates absorption in the visible spectral range. Colloidal and sol-gel techniques were used to synthesize uniform TiO2 NPs of different sizes (average diameters in the range 4-15 nm), and effects of their subsequent modification by TSA molecules were compared with effect of modification of commercial Degussa TiO2 powder. Thorough microstructural characterization of TiO2 nanoparticulates was performed including transmission electron microscopy (TEM) and X-ray diffraction (XRD) analysis, as well as nitrogen adsorption-desorption isotherms. Optical measurements revealed that all surface-modified TiO2 samples with TSA have similar spectral features independent of their morphological differences, and, more importantly, absorption onset of modified TiO2 samples was found to be red-shifted by 1.0 eV compared to the unmodified ones. The mode of binding between TSA and surface Ti atoms was analyzed by infrared spectroscopy. Finally, the quantum chemical calculations, based on density functional theory, were performed to support optical characterization of surface-modified TiO2 with TSA. (C) 2017 Elsevier B.V. All rights reserved.",
journal = "Optical Materials",
title = "Charge-transfer complex formation between TiO2 nanoparticles and thiosalicylic acid: A comprehensive experimental and DFT study",
volume = "73",
pages = "163-171",
doi = "10.1016/j.optmat.2017.08.011"
}
Milićević, B. R., Đorđević, V. R., Lončarević, D., Dostanic, J. M., Ahrenkiel, S. P., Dramićanin, M., Sredojević, D., Švrakić, N. M.,& Nedeljković, J.. (2017). Charge-transfer complex formation between TiO2 nanoparticles and thiosalicylic acid: A comprehensive experimental and DFT study. in Optical Materials, 73, 163-171.
https://doi.org/10.1016/j.optmat.2017.08.011
Milićević BR, Đorđević VR, Lončarević D, Dostanic JM, Ahrenkiel SP, Dramićanin M, Sredojević D, Švrakić NM, Nedeljković J. Charge-transfer complex formation between TiO2 nanoparticles and thiosalicylic acid: A comprehensive experimental and DFT study. in Optical Materials. 2017;73:163-171.
doi:10.1016/j.optmat.2017.08.011 .
Milićević, Bojana R., Đorđević, Vesna R., Lončarević, Davor, Dostanic, Jasmina M., Ahrenkiel, Scott Phillip, Dramićanin, Miroslav, Sredojević, Dušan, Švrakić, Nenad M., Nedeljković, Jovan, "Charge-transfer complex formation between TiO2 nanoparticles and thiosalicylic acid: A comprehensive experimental and DFT study" in Optical Materials, 73 (2017):163-171,
https://doi.org/10.1016/j.optmat.2017.08.011 . .
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