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Royal Society of Chemistry, Nanoscale, 10(5), p. 4236, 2013

DOI: 10.1039/c3nr00517h

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TiO2 coated Au/Ag nanorods with enhanced photocatalytic activity under visible light irradiation

Journal article published in 2013 by Na Zhou, Lakshminarayana Polavarapu ORCID, Nengyue Gao, Yanlin Pan, Peiyan Yuan, Qing Wang, Qing-Hua Xu ORCID
This paper is available in a repository.
This paper is available in a repository.

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Abstract

A facile method was used to prepare uniform Au NR/TiO2 and Au/Ag NR/TiO2 core-shell composite nanoparticles. Au/Ag NR/TiO2 nanoparticles were found to display significantly enhanced visible light photo-catalytic activity compared to Au NR/TiO2 and the commercially available TiO2 nanoparticles. The enhancement mechanism was ascribed to injection of hot electrons of photo-excited Au/Ag NRs to TiO2, which was confirmed by 633 nm laser induced reduction of silver ions on the surface of Au/Ag NR/TiO2 composite nanoparticles.