Efficient Degradation of Benzene over LaVO4/TiO2 Nanocrystalline Heterojunction Photocatalyst Under Visible Light Irradiation

Overview

Journal Environ Sci Technol

Publisher American Chemical Society

Specialty Environmental Health

Date 2009 Jul 3

PMID 19569346

Citations 5

Authors

Hanjie Huang

Danzhen Li

Qiang Lin

Wenjuan Zhang

Yu Shao

Yibin Chen

Meng Sun

Xianzhi Fu

Affiliations

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Abstract

A nanocrystal heterojunction LaVO4TiO2 visible light photocatalyst has been successfully prepared by a simple coupled method. The catalyst was characterized by powder X-ray diffraction, nitrogen adsorption-desorption, transmission electron microscopy, UV-vis diffuse reflectance spectroscopy, X-ray photoelectron spectra, photoluminescence, and electrochemistry technology.The results showed that the prepared nanocomposite catalysts exhibited strong photocatalytic activity for decomposition of benzene under visible light irradiation with high photochemical stability. The enhanced photocatalytic performance of LaVO4/TiO2 may be attributed to not only the matched band potentials but also interconnected heterojunction of LaVO4 and TiO2 nanoparticles.

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