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ZnO–CdS@Cd Heterostructure for Effective Photocatalytic Hydrogen Generation

Authors

  • Xuewen Wang,

    1. Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72# Wenhua Road, Shenyang 110016, P.R. China
    2. ARC Centre of Excellence for Functional Nanomaterials, Australian Institute of Bioengineering and Nanotechnology, School of Chemical Engineering, School of Mechanical & Mining Engineering, The University of Queensland, QLD 4072, Australia
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  • Gang Liu,

    1. Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72# Wenhua Road, Shenyang 110016, P.R. China
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  • Lianzhou Wang,

    1. ARC Centre of Excellence for Functional Nanomaterials, Australian Institute of Bioengineering and Nanotechnology, School of Chemical Engineering, School of Mechanical & Mining Engineering, The University of Queensland, QLD 4072, Australia
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  • Zhi-Gang Chen,

    1. ARC Centre of Excellence for Functional Nanomaterials, Australian Institute of Bioengineering and Nanotechnology, School of Chemical Engineering, School of Mechanical & Mining Engineering, The University of Queensland, QLD 4072, Australia
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  • Gao Qing (Max) Lu,

    Corresponding author
    1. ARC Centre of Excellence for Functional Nanomaterials, Australian Institute of Bioengineering and Nanotechnology, School of Chemical Engineering, School of Mechanical & Mining Engineering, The University of Queensland, QLD 4072, Australia
    • ARC Centre of Excellence for Functional Nanomaterials, Australian Institute of Bioengineering and Nanotechnology, School of Chemical Engineering, School of Mechanical & Mining Engineering, The University of Queensland, QLD 4072, Australia
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  • Hui-Ming Cheng

    Corresponding author
    1. Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72# Wenhua Road, Shenyang 110016, P.R. China
    • Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72# Wenhua Road, Shenyang 110016, P.R. China.
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Abstract

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A novel heterostructure consists of a metal Cd core and a ZnO–CdS heterostructural shell, where ZnO nanoparticles are embedded in a CdS shell. Photocatalytic hydrogen evolution is greatly improved due to the metal Cd core, which provides a charge-carrier transport channel for enhancing the recombination of photoexcited electrons from ZnO and holes from CdS based on Z-scheme co-operation.

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