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Photocatalytic H_2 evolution on a novel CaIn_2S_4 photocatalyst under visible light irradiation

机译:新型CaIn_2S_4光催化剂在可见光照射下光催化H_2的演化

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摘要

A novel visible-light-driven photocatalyst CaIn_2S_4 was synthesized using a facile hydro-thermal method followed by a post-calcination process. The influence of the calcination temperature and time on the activities of the photocatalyst was investigated. CaIn_2S_4 exhibits optical absorption predominantly in visible region with an optical band gap of 1.76 eV. Considerable activity for hydrogen evolution from pure water was observed without any sacrificial agents or cocatalysts under visible light irradiation. The maximum hydrogen evolution rate achieved was 30.92 nmol g~(-1) h~(-1) without obvious deactivation of the photocatalytic activity for four consecutive runs of 32 h.
机译:新型的可见光驱动的光催化剂CaIn_2S_4的合成采用了简便的水热法,然后进行了后煅烧工艺。研究了煅烧温度和时间对光催化剂活性的影响。 CaIn_2S_4主要在可见光区域显示光吸收,其光学带隙为1.76 eV。在可见光照射下,在没有任何牺牲剂或助催化剂的情况下,观察到从纯水中放出氢气的相当大的活​​性。在连续32h的连续运行中,达到的最大氢释放速率为30.92nmol g〜(-1)h〜(-1),而光催化活性没有明显降低。

著录项

  • 来源
    《International journal of hydrogen energy》 |2013年第30期|13153-13158|共6页
  • 作者单位

    National Synchrotron Radiation Laboratory, Collaborative Innovation Center of Chemistry /or Energy Materials,University of Science and Technology of China, He/ei, Anhui 230029, China,CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering,University of Science and Technology of China, He/ei, Anhui 230026, China;

    National Synchrotron Radiation Laboratory, Collaborative Innovation Center of Chemistry /or Energy Materials,University of Science and Technology of China, He/ei, Anhui 230029, China,CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering,University of Science and Technology of China, He/ei, Anhui 230026, China;

    National Synchrotron Radiation Laboratory, Collaborative Innovation Center of Chemistry /or Energy Materials,University of Science and Technology of China, He/ei, Anhui 230029, China;

    National Synchrotron Radiation Laboratory, Collaborative Innovation Center of Chemistry /or Energy Materials,University of Science and Technology of China, He/ei, Anhui 230029, China,CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering,University of Science and Technology of China, He/ei, Anhui 230026, China;

    National Synchrotron Radiation Laboratory, Collaborative Innovation Center of Chemistry /or Energy Materials,University of Science and Technology of China, He/ei, Anhui 230029, China,CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering,University of Science and Technology of China, He/ei, Anhui 230026, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    CaIn_2S_4; Photocatalyst; Hydrothermal; Hydrogen evolution;

    机译:CaIn_2S_4;光触媒;水热析氢;
  • 入库时间 2022-08-18 00:27:56

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