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可见光响应的LaVO4/TiO2纳米管的合成、表征及对气相甲苯的光催化性能

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Indexed by:期刊论文

Date of Publication:2012-05-10

Journal:高等学校化学学报

Included Journals:SCIE、PKU、ISTIC、CSCD、Scopus

Volume:33

Issue:5

Page Number:1046-1049

ISSN No.:0251-0790

Key Words:甲苯;LaVO4/TiO2纳米管;水热方法;光催化

Abstract:通过水热方法合成了可见光响应的LaVO4/TiO2纳米管,采用XRD,TEM,氮气吸附-脱附以及表面光电压谱对样品进行了表征.以气相甲苯为典型污染物,研究了制备样品在可见光(λ>420 nm)条件下的光催化性能.实验结果表明,LaVO4的复合使TiO2的粒径减小,比表面积增大,光响应范围向可见光偏移.光催化实验结果表明,在可见光条件下,LaVO4/TiO2纳米管降解甲苯的效率比其它样品高,与纯TiO2纳米管相比,降解效率提高了47%.

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