1. Enhanced cyclability of CdS/TiO2 photocatalyst by stable interface structure
- Author
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He, Duliang, Chen, Mindong, Teng, Fei, Li, Guiqing, Shi, Huaxia, Wang, Jun, Xu, Mengjiao, Lu, Tianyun, Ji, Xuequn, Lv, Yingjie, and Zhu, Yongfa
- Subjects
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PHOTOCATALYSIS , *CADMIUM sulfide , *SEMICONDUCTOR nanoparticles , *TITANIUM dioxide , *INTERFACES (Physical sciences) , *CHEMICAL structure , *HYDROGEN production , *NANORODS - Abstract
Abstract: CdS nanoparticles were in situ deposited on TiO2 nanosheets and nanorods under hydrothermal conditions, respectively. The effect of CdS–TiO2 interface structure on hydrogen production activity was mainly investigated under visible light irradiation. The results showed that the TiO2 nanosheet-based CdS/TiO2 showed a higher activity and a higher cyclability than the nanorod-based sample due to the stronger interaction of CdS with the (001) facets of TiO2 than with the (101) facets. It was proposed that the strong interaction between CdS nanoparticles and TiO2 nanosheets effectively refrains the recombination of electrons and holes. [Copyright &y& Elsevier]
- Published
- 2012
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