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Title: One-Step Solvothermal Synthesis of Black TiO2 Films for Enhanced Visible Absorption
Authors: Tao, Jie
Jiang, Jiajia
Zhu, Lumin
Zeng, Xiaofei
Chen, Shanlong
Tao, Haijun
Wang, Chen
Shen, Yizhou
Wang, Tao
Keywords: Films
Visible light absorption
Ethylene Glycol
Black TiO2
Issue Date: 2016
Source: Chen, S., Tao, J., Tao, H., Wang, C., Shen, Y., Jiang, J., et al. (2016). One-Step Solvothermal Synthesis of Black TiO2 Films for Enhanced Visible Absorption. Journal of Nanoscience and Nanotechnology, 16(3), 3146-3149.
Series/Report no.: Journal of Nanoscience and Nanotechnology
Abstract: An economic and facile solvothermal method was reported to prepare black TiO2 films on Ti foils that possessed the property of optical absorption in the visible region. The UV-vis spectra showed that the black TiO2 samples exhibited highly enhanced visible-light absorption from 400–600 nm. The black TiO2 films were compact and uniform, composed of nanoparticles and nanosheets. Moreover, a mixed structure of anatase and rutile was present in black TiO2 films. The electron paramagnetic resonance (EPR) spectra confirmed the presence of Ti3+ in samples, which accounted for longer wavelength optical absorption. The results showed that the TiO2 films had retained their black color upon storage in ambient atmosphere for more than one month. Therefore, it was supposed that the ethylene glycol in solvothermal reaction was the key factor for the extension of the absorption spectrum.
ISSN: 1533-4880
DOI: 10.1166/jnn.2016.10864
Rights: © 2016 American Scientific Publishers.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MSE Journal Articles

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