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Preparation and Characterization of Ag-Loaded SmVO4 for Photocatalysis Application

Authors

  • Tingting Li,

    1. Institute of Physical Chemistry, Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, Zhejiang Normal University, Jinhua, China
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  • Yiming He,

    Corresponding author
    1. Department of Materials Physics, Zhejiang Normal University, Jinhua, China
    • Institute of Physical Chemistry, Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, Zhejiang Normal University, Jinhua, China
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  • Jun Cai,

    1. Department of Materials Physics, Zhejiang Normal University, Jinhua, China
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  • Hongjun Lin,

    1. College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, China
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  • Mengfei Luo,

    1. Institute of Physical Chemistry, Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, Zhejiang Normal University, Jinhua, China
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  • Leihong Zhao

    Corresponding author
    • Institute of Physical Chemistry, Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, Zhejiang Normal University, Jinhua, China
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Corresponding author email: zhaoleihong@163.com (Leihong Zhao); hym@zjnu.cn (Yiming He)

Abstract

Ag/SmVO4 composite photocatalysts were synthesized and characterized by BET, XRD, Raman, SEM, TEM, XPS and DRS techniques. Their photocatalytic activities were determined by oxidative decomposition of RhB in aqueous solution under visible light irradiation. The charge separation efficiency was evaluated by the photocurrent-time and ֹOH-trapping experiments. The results revealed that the loaded Ag species greatly improved the efficiency in charge separation, and thus led to enhanced photocatalytic activities compared with that of the pure SmVO4. The sample contained 0.5 wt% Ag and heated at 500°C presents the highest photoactivity.

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