期刊
ACS APPLIED MATERIALS & INTERFACES
卷 4, 期 2, 页码 593-597出版社
AMER CHEMICAL SOC
DOI: 10.1021/am2017199
关键词
Bi2S3/Bi2WO6 composite; photocatalysis; heterojunction; phenol
资金
- National Natural Science Foundation of China [50972155, 50902144]
- National Basic Research Program of China [2010CB933503]
- Science Foundation for Youth Scholar of State Key Laboratory of High Performance Ceramics and Superfine Microstructures [SKL 200904]
To overcome the drawback of low photocatalytic efficiency brought by electron hole recombination and narrow photoresponse range, we designed a novel Bi2S3/Bi2WO6 composite photocatalyst. The composite possesses a wide photoabsorption until 800 nm, which occupies nearly the whole range, of the visible light Compared with bare Bi2WO6, the Bi2S3/Bi2WO6 composite exhibits significantly enhanced photocatalytic activity for phenol degradation Under visible light irradiation. On the basis of the calculated energy band positions, the mechanism of enhanced photocatalytic activity was proposed. The present study provides a new strategy to design composite materials with enhanced photocatalytic performance.
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