Enhanced photoelectrochemical properties of TiO<sub>2</sub> nanorod arrays decorated with CdS nanoparticles.

Xie, Zheng; Liu, Xiangxuan; Wang, Weipeng; Liu, Can; Li, Zhengcao; Zhang, Zhengjun

Enhanced photoelectrochemical properties of TiO₂ nanorod arrays decorated with CdS nanoparticles.

Xie, Zheng; Liu, Xiangxuan; Wang, Weipeng; Liu, Can; Li, Zhengcao; Zhang, Zhengjun.

Afiliación

Xie Z; The State Key Laboratory for New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China; High-Tech Institute of Xi'an, Shannxi 710025, People's Republic of China.
Liu X; High-Tech Institute of Xi'an, Shannxi 710025, People's Republic of China.
Wang W; The State Key Laboratory for New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China.
Liu C; The State Key Laboratory for New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China.
Li Z; The State Key Laboratory for New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China.
Zhang Z; Key Laboratory of Advanced Materials, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China.

Sci Technol Adv Mater ; 15(5): 055006, 2014 Oct.

Article en En | MEDLINE | ID: mdl-27877718

RESUMEN

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.

Palabras clave

CdS NPs; OAD; TiO2 NRAs; photocatalyst; photoelectrochemistry; visible light

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