Visible Light Photocatalytic Activity of C, N, S-Tridoped Anatase TiO₂ Nanosheets

Abstract:

The C, N, S-tridoped TiO₂ nanosheets are synthesized via hydrothermal synthesis and post-treatment, and characterized by X-ray diffraction (XRD), Transmission electron microscopy (TEM), X-ray photoelectron spectra (XPS), and UV–vis diffuse reflectance spectroscopy. The UV-diffuse reflectance spectra of all the C, N, S-tridoped TiO₂ nanosheets greatly extends the absorption edge into the visible light region, which can be attributed to C, N, S-tridoping in the form of cation C-doping, interstitial N-doping, anionic S-doping, and adsorbed SO₄^2- ions states. The C, N, S-tridoped TiO₂ nanosheets exhibits high visible light photocatalytic activity, and the xanthate concentration reduce as much as 100% in 120 min. All these indicate that C, N, S-tridoped TiO₂ nanosheets photocatalysts are promising visible light photocatalyst for the practical application.

• Periodical: Advanced Materials Research (Volumes 391-392)
• Pages: 1117-1122
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.391-392.1117
• Online since: December 2011
• Authors: Qi Xiao, Chi Yao
• Keywords: C, N, S-Tridoped TiO₂ Nanosheets, Photocatalytic Activity, Visible Light

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