Enhancement of photocatalytic activity of cadmium sulfide for hydrogen evolution by photoetching

CORC > 兰州化学物理研究所 > 中国科学院兰州化学物理研究所 > OSSO国家重点实验室

	Enhancement of photocatalytic activity of cadmium sulfide for hydrogen evolution by photoetching
	Lv GX(吕功煊)
刊名	International Journal of Hydrogen Energy
	2008
卷号	33 页码:2007-2013
关键词	Photocatalysis Pt/CdS Hydrogen Photoetching Defects
ISSN号	0360-3199
通讯作者	李越湘
中文摘要	CdS semiconductor photocatalyst was synthesized by a solvent thermal process. Platinum (Pt) was loaded on the CdS by photodeposition. The samples were characterized by XRD, BET, TEM, DRS and XPS techniques. The activities of Pt/CdS photocatalysts under visible light were evaluated by hydrogen production using formic acid as electron donor. The photoetching of CdS was monitored by measuring dissolved Cd2þ. The activity of Pt/CdS with 1 h photoetching treatment increases by 126% compared to the initial photocatalyst. However, excess photoetching decreases the photocatalytic activity. A distinct correlation between photoetching and increase of the activity is observed. Oxygen and platinum play an important role in the photoetching process. The photocatalytic activity is enhanced through decreasing agglomeration of the CdS particles to increase the specific surface area, modifying particle morphology, and removing selectively grain boundary defects which are recombination centers of photoinduced electron–hole pairs.
学科主题	物理化学
收录类别	SCI
资助信息	National Basic Research Program of China (2003CB214503);the National Nature Science Foundation of China (No. 20763006);the Nature Science Foundation of the Jiangxi Province (No. 0620047)
语种	英语
WOS记录号	WOS:000256606900004
公开日期	2012-11-09
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/1879]
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. Enhancement of photocatalytic activity of cadmium sulfide for hydrogen evolution by photoetching[J]. International Journal of Hydrogen Energy,2008,33:2007-2013.
APA	吕功煊.(2008).Enhancement of photocatalytic activity of cadmium sulfide for hydrogen evolution by photoetching.International Journal of Hydrogen Energy,33,2007-2013.
MLA	吕功煊."Enhancement of photocatalytic activity of cadmium sulfide for hydrogen evolution by photoetching".International Journal of Hydrogen Energy 33(2008):2007-2013.