期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 57, 期 4, 页码 1103-1107出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201711725
关键词
hydrogen production; metal-organic frameworks (MOFs); photocatalysis; Schottky junction; surface plasmon resonance
资金
- NSFC [21725101, 21673213, 21371162, 21521001]
- National Research Fund for Fundamental Key Project [2014CB931803]
- Recruitment Program of Global Youth Experts
Awide range of light absorption and rapid electron-hole separation are desired for efficient photocatalysis. Herein, on the basis of a semiconductor-like metal-organic framework (MOF), a Pt@MOF/Au catalyst with two types of metal-MOF interfaces integrates the surface plasmon resonance excitation of Au nanorods with a Pt-MOF Schottky junction, which not only extends the light absorption of the MOF from the UV to the visible region but also greatly accelerates charge transfer. The spatial separation of Pt and Au particles by the MOF further steers the formation of charge flow and expedites the charge migration. As a result, the Pt@MOF/Au presents an exceptionally high photocatalytic H-2 production rate by water splitting under visible light irradiation, far superior to Pt/MOF/Au, MOF/Au and other counterparts with similar Pt or Au contents, highlighting the important role of each component and the Pt location in the catalyst.
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