期刊
ADVANCED MATERIALS
卷 30, 期 6, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201705941
关键词
photocatalysis; P-doped CdS; sacrificial-agents-free catalysts; water splitting
类别
资金
- Chinese Academy of Sciences [XDB17000000]
- Natural Science Foundation of China [21773275, 21371175]
Photocatalytic hydrogen evolution from pure water is successfully realized by using interstitial P-doped CdS with rich S vacancies (CdS-P) as the photocatalyst in the absence of any electron sacrificial agents. Through interstitial P doping, the impurity level of S vacancies is located near the Fermi level and becomes an effective electron trap level in CdS-P, which can change dynamic properties of photogenerated electrons and thus prolong their lifetimes. The long-lived photogenerated electrons are able to reach the surface active sites to initiate an efficient photocatalytic redox reaction. Moreover, the photocatalytic activity of CdS-P can be further improved through the loading of CoP as a cocatalyst.
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