The roles of various Ni species over SnO2 in enhancing the photocatalytic properties for hydrogen generation under visible light irradiation

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

	The roles of various Ni species over SnO2 in enhancing the photocatalytic properties for hydrogen generation under visible light irradiation
	Du QC(杜全超)1,2; Lu GX(吕功煊)1
刊名	Applied Surface Science
	2014
卷号	305 页码:235-241
关键词	Photocatalysis Hydrogen evolution Ni(OH)(2) Ni2O3 PN junction Visible light irradiation
ISSN号	0169-4332
通讯作者	吕功煊
英文摘要	The photocatalysts containing various nickel species were successfully fabricated via loading Ni(OH)₂ and/or Ni₂O₃ species on the surface of SnO₂ nanoparticles, and their roles in the photo-absorb ability, photo-induced charge transfer and photocatalytic hydrogen evolution performances were also investigated under visible light irradiation. Pt/Ni₂O₃–SnO₂ catalyst was not active for hydrogen evolution reaction, while the photocatalytic hydrogen evolution rates of Pt/Ni(OH)₂–SnO₂ and Pt/Ni(OH)₂–Ni₂O₃–SnO₂ were 0.9 and 10.8 μmol g⁻¹ h⁻¹, respectively. It indicated that the photocatalytic activity of Pt/Ni(OH)₂–Ni₂O₃–SnO₂ catalyst had been improved evidently in the presence of Ni₂O₃. The UV–vis DRS results showed that Ni(OH)₂ enhanced light absorption of catalyst significantly in visible light region. The i–t curves confirmed that the co-existence of Ni(OH)₂ and Ni₂O₃ improved significantly the photocurrent of Pt/Ni(OH)₂–Ni₂O₃–SnO₂ photo-electrode. In addition, the long term experiments revealed that Pt/Ni(OH)₂–Ni₂O₃–SnO₂ catalyst was quite stable under given conditions. A proposed reaction mechanism for hydrogen evolution was also present.
学科主题	物理化学与绿色催化
收录类别	SCI
资助信息	the 973 Program and 863 Program of Department of Sciences and Technology of China (Grant Nos.2013CB632404;2009CB220003;2012AA051501);National Science Foundation of China (21173242)
语种	英语
WOS记录号	WOS:000336525400032
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/20453]
专题	兰州化学物理研究所_OSSO国家重点实验室
作者单位	1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Du QC,Lu GX. The roles of various Ni species over SnO2 in enhancing the photocatalytic properties for hydrogen generation under visible light irradiation[J]. Applied Surface Science,2014,305:235-241.
APA	Du QC,&Lu GX.(2014).The roles of various Ni species over SnO2 in enhancing the photocatalytic properties for hydrogen generation under visible light irradiation.Applied Surface Science,305,235-241.
MLA	Du QC,et al."The roles of various Ni species over SnO2 in enhancing the photocatalytic properties for hydrogen generation under visible light irradiation".Applied Surface Science 305(2014):235-241.