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Photocatalytic Nanodiodes for Visible-Light Photocatalysis

Authors

  • Hyun G. Kim Dr.,

    1. Department of Chemical Engineering and School of Environmental Science & Engineering, Pohang University of Science and Technology, San-31 Hyoja-dong, Pohang 790-784, Korea, Fax: (+81) 54-279-5528
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  • Pramod H. Borse Dr.,

    1. Department of Chemical Engineering and School of Environmental Science & Engineering, Pohang University of Science and Technology, San-31 Hyoja-dong, Pohang 790-784, Korea, Fax: (+81) 54-279-5528
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  • Wonyong Choi Prof.,

    1. Department of Chemical Engineering and School of Environmental Science & Engineering, Pohang University of Science and Technology, San-31 Hyoja-dong, Pohang 790-784, Korea, Fax: (+81) 54-279-5528
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  • Jae S. Lee Prof.

    1. Department of Chemical Engineering and School of Environmental Science & Engineering, Pohang University of Science and Technology, San-31 Hyoja-dong, Pohang 790-784, Korea, Fax: (+81) 54-279-5528
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  • This work was supported by the Hydrogen Energy R&D Center, the Research Center for Energy Conversion and Storage, the National R&D Center for Nano Science and Technology, the National Research Laboratory Program, and the General Motors R&D Center.

Abstract

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Oxidative decomposition of toxic pollutants (such as acetaldehyde and isopropyl alcohol), decomposition of water, and photocurrent generation can all be achieved with visible light. Nano-islands of p-type CaFe2O4 interfacing with bulk n-type PbBi2Nb1.9W0.1O9 (shown) form photocatalytic nanodiodes that demonstrate high stability and high activity for such applications.

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