Enhanced visible light photocatalytic performance of CdS sensitized TiO₂ nanorod arrays decorated with Au nanoparticles as electron sinks.

ABSTRACT: In this paper, we propose a nanostructure with Au nanoparticles (NPs), as electron sinks, located at the most outside layer of CdS sensitized TiO₂ nanorod arrays (TiO₂ NRAs/CdS/Au). By the introduction of Au NPs, TiO₂ NRAs/CdS/Au performs higher visible light photocatalytic capacity in the degradation of unsymmetrical dimethylhydrazine wastewater than TiO₂ NRAs/CdS. The optimal deposition time for Au NPs is 30 s. The visible light induced degradation ability of TiO₂ NRAs/CdS/Au (30 s) is 1.4 times that of TiO₂ NRAs/CdS. The cycling stability of TiO₂ NRAs/CdS is greatly enchanced after Au NPs decoration, which can maintain 95.86% after three cycles. Photoluminescence spectra and photoelectrochemical measurements we

SUBMITTER: Gao X 

PROVIDER: S-EPMC5430509 | biostudies-literature | 2017 Apr

REPOSITORIES: biostudies-literature