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Nano-CdS confined within titanate nanotubes for efficient photocatalytic hydrogen production under visible light illumination
Long, Lizhen1,2; Yu, Xiang3; Wu, Liangpeng1; Li, Juan1; Li, Xinjun1
2014-01-24
发表期刊NANOTECHNOLOGY
卷号25期号:3
摘要CdS nanoparticles were confined within titanate nanotubes (TNTs) by an ion-exchange reaction and a subsequent sulfurization process. Prior to the ion-exchange reaction, the exterior surfaces of the TNTs were modified by a silane coupling agent to make CdS nanoparticles selectively deposit on the inner wall. The composites were characterized by high-resolution transmission electron microscopy, powder x-ray diffraction, inductively coupled plasma atomic emission spectrometry, N-2 adsorption-desorption and UV-vis absorption spectra. The results confirm that CdS in the range of 2-3 nm in diameter are confined within the inner cavity of the TNTs. CdS confined within TNTs shows a significant blue-shift of the absorption band edge compared with CdS nanoparticles deposited on the exterior surface of TNTs. Also the TNTs-confined CdS composite exhibits enhanced photocatalytic activity and photostability for hydrogen evolution under visible light illumination due to the quantum size effect of CdS as a result of the spatial confinement effect of the TNTs.
文章类型Article
关键词Cds Nanoparticles Titanate Nanotubes Confinement Effect Hydrogen Production Quantum Size Effect
WOS标题词Science & Technology ; Technology ; Physical Sciences
DOI10.1088/0957-4484/25/3/035603
研究领域[WOS]Science & Technology - Other Topics ; Materials Science ; Physics
关键词[WOS]TIO2 NANOTUBES ; CADMIUM-SULFIDE ; WATER ; ARCHITECTURE ; IRRADIATION ; EVOLUTION ; SIZE
收录类别SCI
语种英语
WOS类目Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号WOS:000329040400014
引用统计
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/10629
专题中国科学院广州能源研究所
作者单位1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Jinan Univ, Analyt & Testing Ctr, Guangzhou 510632, Guangdong, Peoples R China
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Long, Lizhen,Yu, Xiang,Wu, Liangpeng,et al. Nano-CdS confined within titanate nanotubes for efficient photocatalytic hydrogen production under visible light illumination[J]. NANOTECHNOLOGY,2014,25(3).
APA Long, Lizhen,Yu, Xiang,Wu, Liangpeng,Li, Juan,&Li, Xinjun.(2014).Nano-CdS confined within titanate nanotubes for efficient photocatalytic hydrogen production under visible light illumination.NANOTECHNOLOGY,25(3).
MLA Long, Lizhen,et al."Nano-CdS confined within titanate nanotubes for efficient photocatalytic hydrogen production under visible light illumination".NANOTECHNOLOGY 25.3(2014).
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