期刊
JOURNAL OF PHYSICAL CHEMISTRY C
卷 118, 期 26, 页码 14238-14245出版社
AMER CHEMICAL SOC
DOI: 10.1021/jp504005x
关键词
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资金
- National Natural Science Foundation of China [21175012, 21006015, 21070623]
- Ministry of Science and Technology [2012DFR40240]
- Chinese Ministry of Education
In this work, we have prepared a p-type semiconductor of Cu-20 decorated with MoS2 nanosheets as cocatalyst for efficient solar hydrogen production under visible light. Results show that Cu-20 decorated with 1.0 wt % MoS2 presents the maximum reduction photocurrent density of 0.17 mA cm(-2), which is 7-fold higher than pristine Cu-20. Furthermore, the as-prepared MoS2@Cu20O exhibits remarkable photostability with only 7% loss of its original photocurrent after 9 h of continuous work. The excellent performance of MoS2@Cu-20 is ascribed to the introduction of active sites of MoS2 nanosheets as cocatalyst to the surface of Cu-20 nanoparticles, which activates the photocatalyst by lowering the electrochemical proton reduction overpotential and also inhibits photoinduced corrosion during the measurement.
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