Synthesis and characterization of TiO2/CdS core-shell nanorod arrays and their photoelectrochemical property

被引：72

作者：

Cao, Chunlan ^{[1
,2
]}

Hu, Chenguo ^{[1
]}

Shen, Weidong ^{[2
]}

Wang, Shuxia ^{[1
]}

Tian, Yongshu ^{[1
,2
]}

Wang, Xue ^{[1
]}

机构：

[1] Chongqing Univ, Dept Appl Phys, Chongqing 400044, Peoples R China

[2] Chongqing Commun Coll, Dept Power Engineer, Chongqing 400035, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2012年 / 523卷

关键词：

TiO2/CdS core-shell; Nanorod array; Hydrothermal method; Spin-coating; QUANTUM-DOT SENSITIZATION; TITANIA NANOTUBE ARRAYS; HYDROGEN-PRODUCTION; CDS; WATER; NANOSTRUCTURES; PHOTOCATALYSTS; SENSOR;

D O I：

10.1016/j.jallcom.2012.01.126

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

TiO2/CdS core-shell nanorod arrays have been fabricated via a two-step method. Vertically aligned TiO2 nanorod arrays (NRs) were synthesized by a facile hydrothermal method, and followed by depositing CdS nanoparticles on TiO2 NRs by spin-coating successive ion layer adsorption and reaction (spin-SILAR) method. The surface morphology, structure, optical and photoelectrochemical behaviors of the core-shell NRs films are considered. The UV-vis absorption spectrum results suggested that the absorption peak of the TiO2/CdS core-shell NRs shifts from the ultraviolet region to the visible region in comparison to that of the pure TiO2 NRs. The obviously enhanced photoelectrochemical (PEC) performances of the heterojunction NRs were found under illumination of the simulated sunlight in comparison with that of the TiO2 NRs. The enhanced PEC performance and formation mechanism of TiO2/CdS core-shell NRs were discussed in detail. (C) 2012 Elsevier B. V. All rights reserved.

引用

页码：139 / 145

页数：7

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