期刊
APPLIED SURFACE SCIENCE
卷 396, 期 -, 页码 430-437出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2016.10.172
关键词
CaIn2S4; Au; Nanocomposites; Plasmon; Photocatalysis
类别
资金
- National Nature Science Foundation of China [21406091, 21576121]
- Natural Science Foundation of Jiangsu Province [BK20140530, BK20150482]
- China Postdoctoral Science Foundation [2015M570409]
A series of Au/CaIn2S4 nanocomposites with different Au contents were prepared by a simple photoreduction process. Under visible light irradiation, the as-prepared Au/CaIn2S4 nanocomposites exhibited plasmon-enhanced photocatalytic activity for the degradation of methylene blue (MB) compared to that of bare CaIn2S4. The sample with 4 wt% Au hybridized CaIn2S4 exhibited the highest photocatalytic efficiency for MB degradation compared with those of the other nanocomposites. The mechanism for improving the photocatalytic performance of the Au/CaIn2S4 nanocomposites was proposed by using the photoluminescence measurement and electrochemical analyses. The enhanced photocatalytic performance could be attributed to the high separation efficiency of the photogenerated electron-hole pairs. This work could provide a new insight into the fabrication of CaIn2S4-based plasmonic photocatalysts with enhanced performance. (C) 2016 Elsevier B. V. All rights reserved.
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