Gold-plasmon enhanced solar-to-hydrogen conversion on the {001} facets of anatase TiO2 nanosheets

Jinlin Long; Hongjin Chang; Quan Gu; Jie Xu; Lizhou Fan; Shuchao Wang; Yangen Zhou; Wei Wei; Ling Huang; Xuxu Wang; Ping Liu; Wei Huang

doi:10.1039/C3EE43289K

Gold-plasmon enhanced solar-to-hydrogen conversion on the {001} facets of anatase TiO₂ nanosheets†

Jinlin Long,*^ac Hongjin Chang,^b Quan Gu,^ac Jie Xu,^a Lizhou Fan,^a Shuchao Wang,^c Yangen Zhou,^a Wei Wei,^c Ling Huang,*^bc Xuxu Wang,^a Ping Liu^a and Wei Huang*^b

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^a Research Institute of Photocatalysis, State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou 350002, China
E-mail: jllong@fzu.edu.cn
Web: http://chem.fzu.edu.cn/szdw/teacherinfo.aspx?id=40
Fax: +86 0591-83779121
Tel: +86 0591-83779121

^b Institute of Advanced Materials (IAM), NanjingTech University, Nanjing 210009, China
E-mail: iamlhuang@njut.edu.cn, iamwhuang@njut.edu.cn

^c School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore
E-mail: lhuang@ntu.edu.sg
Tel: +65 63168825

Abstract

A 64-fold improved efficiency of solar-to-hydrogen conversion (SHC) was achieved via exposing Au nanoparticles (NPs) on the {001} facets of anatase TiO₂ nanosheets. The SHC follows a surface plasmon resonance-mediated electron injection mechanism, where Au NPs can not only harvest visible light and convert them to free energetic electrons, but promote the SHC by increasing the electron–hole pair formation rate driven by the electromagnetic field formed nearby the semiconductor.

Energy & Environmental Science

Gold-plasmon enhanced solar-to-hydrogen conversion on the {001} facets of anatase TiO₂ nanosheets†

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Gold-plasmon enhanced solar-to-hydrogen conversion on the {001} facets of anatase TiO₂ nanosheets

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