Eosin Y-sensitized nitrogen-doped TiO2 for efficient visible light photocatalytic hydrogen evolution

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	Eosin Y-sensitized nitrogen-doped TiO2 for efficient visible light photocatalytic hydrogen evolution
	Lv GX(吕功煊)
刊名	Journal of Molecular Catalysis A-Chemical
	2008
卷号	282 页码:117-123
关键词	Photocatalysis Visible light Nitrogen-doped TiO2 Eosin Y Sensitization Hydrogen evolution
ISSN号	1381-1169
通讯作者	李越湘
中文摘要	A nitrogen-doped TiO2 (N-TiO2) photocatalyst was prepared by the calcination of the hydrolysis product of Ti(SO4)2 with aqueous ammonia. Pt was loaded on N-TiO2 by photodeposition method. A dye-sensitization photocatalyst was prepared by impregnation method with Eosin Y and the platinized N-TiO2. The prepared samples were characterized by XRD, UV–vis diffuse reflectance spectra (DRS), BET and FT-IR. The visible light activity of the sensitization photocatalysts was evaluated by photocatalytic hydrogen evolution (λ > 420 nm) in the presence of electron donor triethanolamine (TEOA). The N-TiO2 has smaller crystalline size and larger specific surface area to enhance the adsorption amount of Eosin Y than TiO2 prepared by NaOH. Surface oxygen defects produced by nitrogen doping would improve the adsorption of Eosin Y and excited electron to transfer to the conduction band of N-TiO2. Therefore the visible light activity of the sensitized nitrogen-doped platinized TiO2 is much higher than that of the sensitized platinized TiO2. The sensitized nitrogen-doped platinized TiO2 calcined at 300 ◦C has the highest visible light activity among the catalysts calcined at various temperatures, whose activity is increased by a factor of 3 compared to that of the sensitized platinized TiO2 calcined at the same temperature.
学科主题	物理化学
收录类别	SCI
资助信息	Department of Sciences and Technology 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:000254517400015
公开日期	2012-11-09
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/1880]
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. Eosin Y-sensitized nitrogen-doped TiO2 for efficient visible light photocatalytic hydrogen evolution[J]. Journal of Molecular Catalysis A-Chemical,2008,282:117-123.
APA	吕功煊.(2008).Eosin Y-sensitized nitrogen-doped TiO2 for efficient visible light photocatalytic hydrogen evolution.Journal of Molecular Catalysis A-Chemical,282,117-123.
MLA	吕功煊."Eosin Y-sensitized nitrogen-doped TiO2 for efficient visible light photocatalytic hydrogen evolution".Journal of Molecular Catalysis A-Chemical 282(2008):117-123.