Visible-light-driven photocatalytic carbon-doped porous ZnO nanoarchitectures for solar water-splitting

Li Chyong Chen; Yan Gu Lin; Yu Kuei Hsu; Ying Chu Chen; San-Yuan Chen; Kuei Hsien Chen

doi:10.1039/c2nr31800h

Visible-light-driven photocatalytic carbon-doped porous ZnO nanoarchitectures for solar water-splitting

Li Chyong Chen^*, Yan Gu Lin, Yu Kuei Hsu, Ying Chu Chen, San-Yuan Chen, Kuei Hsien Chen

^*Corresponding author for this work

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

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Abstract

C-doped ZnO hierarchically porous nanoarchitectures were synthesized in situ on indium tin oxide (ITO) through a counter strategy. The PEC performance of the C-doped ZnO nanoarchitectures in the splitting of water without sacrificial reagents was systematically evaluated for the first time. In comparison to other ZnO-based photoanodes in the literature, C-doped ZnO nanoarchitectures exhibit a striking photoresponse. Not only do they have a maximum IPCE value of 95%, but they also have an IPCE at the monochromatic wavelength of 400 nm as high as 26.6%, implying that modification by doping with carbon substantially improves the light utilization and conversion efficiency in the visible region of interest over those obtained using a conventional ZnO structure. This model hybrid photoanode will enable us to design high-activity, high-stability visible-light-driven photoelectrodes in the future.

Original language	English
Pages (from-to)	6515-6519
Number of pages	5
Journal	Nanoscale
Volume	4
Issue number	20
DOIs	https://doi.org/10.1039/c2nr31800h
State	Published - 21 Oct 2012

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abstract = "C-doped ZnO hierarchically porous nanoarchitectures were synthesized in situ on indium tin oxide (ITO) through a counter strategy. The PEC performance of the C-doped ZnO nanoarchitectures in the splitting of water without sacrificial reagents was systematically evaluated for the first time. In comparison to other ZnO-based photoanodes in the literature, C-doped ZnO nanoarchitectures exhibit a striking photoresponse. Not only do they have a maximum IPCE value of 95%, but they also have an IPCE at the monochromatic wavelength of 400 nm as high as 26.6%, implying that modification by doping with carbon substantially improves the light utilization and conversion efficiency in the visible region of interest over those obtained using a conventional ZnO structure. This model hybrid photoanode will enable us to design high-activity, high-stability visible-light-driven photoelectrodes in the future.",

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AU - Chen, Li Chyong

AU - Lin, Yan Gu

AU - Hsu, Yu Kuei

AU - Chen, Ying Chu

AU - Chen, San-Yuan

AU - Chen, Kuei Hsien

PY - 2012/10/21

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AB - C-doped ZnO hierarchically porous nanoarchitectures were synthesized in situ on indium tin oxide (ITO) through a counter strategy. The PEC performance of the C-doped ZnO nanoarchitectures in the splitting of water without sacrificial reagents was systematically evaluated for the first time. In comparison to other ZnO-based photoanodes in the literature, C-doped ZnO nanoarchitectures exhibit a striking photoresponse. Not only do they have a maximum IPCE value of 95%, but they also have an IPCE at the monochromatic wavelength of 400 nm as high as 26.6%, implying that modification by doping with carbon substantially improves the light utilization and conversion efficiency in the visible region of interest over those obtained using a conventional ZnO structure. This model hybrid photoanode will enable us to design high-activity, high-stability visible-light-driven photoelectrodes in the future.

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Visible-light-driven photocatalytic carbon-doped porous ZnO nanoarchitectures for solar water-splitting

Abstract

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