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Preparation and characterization of LaVO 4/TiO 2 nanotubes and their application in photocatalytic degradation of gaseous toluene under visible light

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Authors
Zou, X.
Li, Xin Yong
Zhao, Q.
Chen, G.
Date
2012
Type
Journal Article

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Zou, X. and Li, X.Y. and Zhao, Q. and Chen, G. 2012. Preparation and characterization of LaVO 4/TiO 2 nanotubes and their application in photocatalytic degradation of gaseous toluene under visible light. Gaodeng Xuexiao Huaxue Xuebao/Chemical Journal of Chinese Universities. 33 (5): pp. 1046-1049.
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Gaodeng Xuexiao Huaxue Xuebao/Chemical Journal of Chinese Universities
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Department of Chemical Engineering
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Abstract

LaVO 4/TiO 2 nanotubes, which can response for visible light, were prepared by a facile hydrothermal method, and characterized by TEM, XRD and N 2 adsorption-desorption measurements as well as surface photovoltage spectroscopy. The photocatalytic activity of the LaVO 4/TiO 2 nanotubes was evaluated by degradation of gaseous toluene under visible light(?>420 nm) irradiation. The doped LaVO 4 reduced the average crystal size, enhanced specific surface area and shifted the optical absorption edge to the visible region of TiO 2. The photocatalytic activity of LaVO 4/TiO 2 nanotubes was increased by 47% than pure TiO 2 nanotubes.