Janus Au-TiO2 photocatalysts with strong localization of plasmonic near-fields for efficient visible-light hydrogen generation.

Seh, Zhi Wei; Liu, Shuhua; Low, Michelle; Zhang, Shuang-Yuan; Liu, Zhaolin; Mlayah, Adnen; Han, Ming-Yong · Adv Mater · 2012

basic_science · Level V

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Abstract

The first use of non-centrosymmetric Janus Au-TiO(2) photocatalysts in efficient, plasmon-enhanced visible-light hydrogen generation is demonstrated. The intense localization of plasmonic near-fields close to the Au-TiO(2) interface, coupled with optical transitions involving localized electronic states in amorphous TiO(2) brings about enhanced optical absorption and the generation of electron-hole pairs for photocatalysis.

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