Enhanced photoelectrochemical properties of TiO2 nanorod arrays decorated with CdS nanoparticles

被引：36
|
作者：
Xie, Zheng [1 ,2 ]
Liu, Xiangxuan [2 ]
Wang, Weipeng [1 ]
Liu, Can [1 ]
Li, Zhengcao [1 ]
Zhang, Zhengjun [3 ]
机构：
[1] Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China
[2] High Tech Inst Xian, Shannxi 710025, Peoples R China
[3] Tsinghua Univ, Sch Mat Sci & Engn, Key Lab Adv Mat, Beijing 100084, Peoples R China
来源：
SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS | 2014年 / 15卷 / 05期
基金：
中国国家自然科学基金;
关键词：
TiO2; NRAs; OAD; CdS NPs; photoelectrochemistry; photocatalyst; visible light; SENSITIZED SOLAR-CELLS; PHOTOCATALYTIC PROPERTIES; CHARGE-DISTRIBUTION; NANOTUBE ARRAYS; DOPED TIO2; QUANTUM; FILMS; PHOTOLUMINESCENCE; PERFORMANCE; TITANIA;
D O I：
10.1088/1468-6996/15/5/055006
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
TiO2 nanorod arrays (TiO2 NRAs) sensitized with CdS nanoparticles were fabricated via successive ion layer adsorption and reaction (SILAR), and TiO2 NRAs were obtained by oxidizing Ti NRAs obtained through oblique angle deposition. The TiO2 NRAs decorated with CdS nanoparticles exhibited excellent photoelectrochemical and photocatalytic properties under visible light, and the one decorated with 20 SILAR cycles CdS nanoparticles shows the best performance. This can be attributed to the enhanced separation of electrons and holes by forming heterojunctions of CdS nanoparticles and TiO2 NRAs. This provides a promising way to fabricate the material for solar energy conversion and wastewater degradation.
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页数：10
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