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Citation: SHI Jian, LI Jun, CAI Yun-Fa. Fabrication of C, N-Codoped TiO₂ Nanotube Photocatalysts with Visible Light Response[J]. Acta Physico-Chimica Sinica, ;2008, 24(07): 1283-1286. doi: 10.3866/PKU.WHXB20080727 shu

Fabrication of C, N-Codoped TiO₂ Nanotube Photocatalysts with Visible Light Response

1.
School of Chemistry and Chemical Engineering, Nantong University, Nantong 226007, Jiangsu Province, P. R. China; Institute of Environmental Engineering, Zhejiang University, Hangzhou 310027, P. R. China

Received Date: 18 December 2007
Available Online: 25 April 2008

To enhance the absorption in the visible region for TiO2, C and/or N doping of TiO2 nanotube was carried out by a novel method——plasma electrolysis. The doping was achieved with active C and Nproduced fromthe plasma electrolysis of HCONH2, NaNO2, or (NH2)2CO. The results of XPS revealed that C and N were successfully doped into the lattice of TiO2. UV-Vis diffuse reflectance spectra showed a shift to longer wavelengths and an enhancement of the absorption in the visible region (>400 nm) for the C, N-codoped TiO2, compared to the pure TiO2, C-doped TiO2 and N-doped TiO2. The C, N-codoped TiO2 showed the best photocatalytic activities for the degradation of methyl orange under visible light irradiation, and was a promising photocatalyst for utilizing the solar energy.
- Photocatalysis; Visible light; Titania; Codoping
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Fabrication of C, N-Codoped TiO2 Nanotube Photocatalysts with Visible Light Response

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通讯作者: 陈斌, bchen63@163.com

Fabrication of C, N-Codoped TiO₂ Nanotube Photocatalysts with Visible Light Response