Enhanced photocatalytic performance of tungsten-based photocatalysts for degradation of volatile organic compounds: a review  

作　　者：Qiang Cheng Gao‑Ke Zhang 

机构地区：[1]Hubei Key Laboratory of Mineral Resources Processing and Environment,School of Resources and Environmental Engineering,State Key Laboratory of Silicate Materials for Architectures,Wuhan University of Technology,Wuhan 430070,China

出　　处：《Tungsten》2020年第3期240-250,共11页钨科技（英文）

基　　金：This work was financially supported by the National Natural Science Foundation of China(NSFC,Grant No.51472194);the NSF of Hubei Province(Grant No.2016CFA078);the National Basic Research Program of China(973 Program,Grant No.2013CB632402).

摘　　要：Photocatalytic oxidation process for the degradation of volatile organic compounds(VOCs)contaminants is a promising technology.But until now,the low photocatalytic activity of the conventional TiO_(2) photocatalyst under visible-light irradia-tion hinders the deployment of this technique for VOCs degradation.WO_(3) has been proved to be a suitable photocatalytic material for degradation of various VOCs as its appropriate band-gap,high stability and great capability.Nevertheless,the actual implementation of WO_(3) is still restricted by short lifetime of photoexcited charge carriers and low light energy conver-sion efficiency:its photocatalytic performance is needed to be improved.This review discusses the process of tungsten-based photocatalyst for removal of VOCs and summarizes a variety of strategies to improve the VOCs oxidation performances of WO_(3),such as controlling the morphology structure,engendering chemical defects,coupling heterojunction,doping suitable dopants and loading a co-catalyst.In addition,the practical application of tungsten-based photocatalyst is discussed.

关 键 词：Tungsten trioxide Photocatalytic oxidation Volatile organic compound degradation MODIFICATION 

分 类 号：TG146.411[一般工业技术—材料科学与工程] O643.36[金属学及工艺—金属材料]