期刊
DALTON TRANSACTIONS
卷 44, 期 37, 页码 16372-16382出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5dt02266e
关键词
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资金
- National Science Funds for Creative Research Groups of China [51421006]
- National Science Fund for Distinguished Young Scholars [51225901]
- outstanding youth fund of NSFC [51422902]
- Research Fund for Changjiang Scholars and innovation team of Ministry of education [IRT13061]
- Natural Science Foundation of Jiangsu Province [BK20141417]
- Key Program of National Natural Science Foundation of China [41430751]
- PAPD
Hydrogen evolution by photocatalytic water splitting has attracted extensive attention in recent years. Here we report a composite photocatalyst, in which graphene and Pt particles act as cocatalysts to modify CdS nanowires. This composite photocatalyst was prepared by a solvothermal method followed by a photoreduction process. The obtained samples were characterized by X-ray powder diffraction, UV-vis diffuse reflectance spectroscopy, scanning and transmission electron microscopy, X-ray photoelectron spectroscopy, photoluminescence and Brunauer-Emmett-Teller specific surface area analysis. The graphene and Pt comodified CdS nanowires gain a high hydrogen evolution rate of 3984 mu mol h(-1) g(-1), which is almost 4 times higher than that of bare CdS nanowires and also higher than the sum of graphene-CdS and Pt-CdS nanowires. The obtained sample also exhibits a good stability. The encouraging results presented here can be attributed to the incorporation of graphene and Pt which show a synergetic effect for hydrogen evolution. This work paves a way to the potential application of CdS nanowires in energy conversion.
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