Photocatalytic hydrogen generation in the presence of glucose over ZnS-coated ZnIn2S4 under visible light irradiation

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	Photocatalytic hydrogen generation in the presence of glucose over ZnS-coated ZnIn2S4 under visible light irradiation
	Lv GX(吕功煊)
刊名	Int. J. Hydrog. Energy
	2010
卷号	35 页码:7116-7126
关键词	ZnIn2S4 ZnS Composite photocatalyst Glucose Hydrogen generation
ISSN号	0360-3199
通讯作者	李越湘
中文摘要	ZnS coated ZnIn2S4 (ZnS–ZnIn2S4) photocatalysts were prepared in methanol by a facile solvothermal process. The photocatalysts were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive spectrometer (EDS), X-ray diffraction (XRD), UV–Vis diffusive reflectance spectroscopy (DRS), BET, and electrochemistry measurements. ZnS–ZnIn2S4 photocatalysts have hexagonal crystal phase and complex morphology such as micro-spheres, micro-tubes and micro-ribbons. Using glucose as an electron donor, photocatalytic hydrogen generation over Pt/ZnS–ZnIn2S4 was investigated. The results show that photoactivity of hydrogen generation over Pt/ZnS–ZnIn2S4 was improved notably with simultaneous degradation of glucose. The factors which affect photocatalytic hydrogen generation, such as composition of ZnS-ZnIn2S4, initial concentration of glucose and concentration of NaOH, were investigated. The prepared ZnS–ZnIn2S4 photocatalysts exhibit better activity for hydrogen generation than pure ZnIn2S4, which may be attributed to enhancement of the adsorption of glucose by ZnS on the ZnIn2S4 surface. The effect of glucose concentration on the hydrogen generation rate is consistent with a Langmuir model. The basic condition is favorable for the photocatalytic hydrogen generation. A large number of $OH radicals generated in ZnS–ZnIn2S4 system, have been tested by a TA-FL (terephthalic acid-fluorescence) method. A possible mechanism was discussed.
学科主题	环境催化与氢能
收录类别	SCI
资助信息	the National Nature Science Foundation of China (No.20763006);National Basic Research Program of China (2009CB220003) Program for Changjiang Scholars and Innovative Research Team in University (IRT0730);the Natural Science Foundation of Jiangxi, China (2007GZH1754);Research Fund of Education Ministry of Jiangxi, China (GJJ09041)
语种	英语
WOS记录号	WOS:000280601600078
公开日期	2012-09-21
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/463]
专题	兰州化学物理研究所_OSSO国家重点实验室兰州化学物理研究所_ERC国家工程研究中心
推荐引用方式 GB/T 7714	Lv GX. Photocatalytic hydrogen generation in the presence of glucose over ZnS-coated ZnIn2S4 under visible light irradiation[J]. Int. J. Hydrog. Energy,2010,35:7116-7126.
APA	吕功煊.(2010).Photocatalytic hydrogen generation in the presence of glucose over ZnS-coated ZnIn2S4 under visible light irradiation.Int. J. Hydrog. Energy,35,7116-7126.
MLA	吕功煊."Photocatalytic hydrogen generation in the presence of glucose over ZnS-coated ZnIn2S4 under visible light irradiation".Int. J. Hydrog. Energy 35(2010):7116-7126.