Preparation and Characterization of LaVO4/TiO2 Nanotubes and Their Application in Photocatalytic Degradation of Gaseous Toluene under Visible Light

doi:10.3969/j.issn.0251-0790.2012.05.033

Chem. J. Chinese Universities ›› 2012, Vol. 33 ›› Issue (05): 1046.doi: 10.3969/j.issn.0251-0790.2012.05.033

• Physical Chemistry • Previous Articles Next Articles

Preparation and Characterization of LaVO₄/TiO₂ Nanotubes and Their Application in Photocatalytic Degradation of Gaseous Toluene under Visible Light

ZOU Xue-Jun¹, LI Xin-Yong^1,2, ZHAO Qi-Dong¹, CHEN Guo-Hua²

1. School of Environmental Science and Technology, State Key Laboratory of Fine Chemical, Key Laboratory of Industrial Ecology and Environmental Engineering of Ministry of Education, Dalian University of Technology, Dalian 116023, China;
2. Department of Chemical Engineering, Hong Kong University of Science & Technology, Kowloon, China

Received:2011-06-01 Online:2012-05-10 Published:2012-05-10

Abstract

Abstract: LaVO₄/TiO₂ nanotubes, which can response for visible light, were prepared by a facile hydrothermal method, and characterized by TEM, XRD and N₂ adsorption-desorption measurements as well as surface photovoltage spectroscopy. The photocatalytic activity of the LaVO₄/TiO₂ nanotubes was evaluated by degradation of gaseous toluene under visible light(λ＞420 nm) irradiation. The doped LaVO₄reduced the average crystal size, enhanced specific surface area and shifted the optical absorption edge to the visible region of TiO₂. The photocatalytic activity of LaVO₄/TiO₂ nanotubes was increased by 47% than pure TiO₂ nanotubes.

Key words: Toluene, LaVO₄/TiO₂ nanotube, Hydrothermal method, Photocatalysis

CLC Number:

O643

TrendMD:

ZOU Xue-Jun, LI Xin-Yong, ZHAO Qi-Dong, CHEN Guo-Hua. Preparation and Characterization of LaVO₄/TiO₂ Nanotubes and Their Application in Photocatalytic Degradation of Gaseous Toluene under Visible Light[J]. Chem. J. Chinese Universities, 2012, 33(05): 1046.

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Preparation and Characterization of LaVO₄/TiO₂ Nanotubes and Their Application in Photocatalytic Degradation of Gaseous Toluene under Visible Light

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