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A synergetic effect of surface plasmon and ammoniation on enhancing photocatalytic activity of ZnO nanorods

机译:表面等离子体和氨对增强ZnO纳米棒的光催化活性的协同作用

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摘要

A synergetic effect of surface plasmon (SP) and ammoniation on the enhancements of both ultraviolet and visible photocatalytic activities of ZnO nanorods is reported. SPs were supported by Ag nanoparticles attached to the surface of ZnO nanorods that were prepared by hydrothermal method. Ammoniation was conducted under 20 atmospheres at 400 degrees C in an autoclave. Photocatalysis was evaluated in terms of the degree of degradation of methylene blue by ZnO. It is found that ammoniation can dope both nitrogen and hydrogen ions for bandgap width narrowing and dangling bond passivation, respectively, while Ag nanoparticles may facilitate the separation and generation of electrons and holes in ZnO via SPs for redox reaction at the surface. This synergism of the two different approaches to processing ZnO enhances its photocatalytic ability significantly.
机译:报道了表面偏离(SP)和氨对ZnO纳米棒的紫外线和可见光催化活性增强的协同作用。 Ag纳米粒子附着于通过水热法制备的ZnO纳米棒表面的Ag纳米颗粒支持SP。 在高压釜中在400℃下在20个大气压下进行铵。 通过ZnO的亚甲基蓝的降解程度评价光催化。 结果发现氨水可以分别掺杂氮气和氢离子,分别用于带隙宽度缩小和悬挂粘合钝化,而Ag纳米颗粒可以促进在ZnO通过SP在表面上的氧化还原反应的电子和孔的分离和产生。 这种处理ZnO的两种不同方法的这种协同作用显着提高了光催化能力。

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  • 来源
    《RSC Advances》 |2016年第100期|共10页
  • 作者

    Ma L.; Yang X.; Zhou Z. Q.; Lu M.;

  • 作者单位

    Fudan Univ Shanghai Ultra Precis Opt Mfg Engn Ctr Dept Opt Sci &

    Engn Shanghai 200433 Peoples R China;

    Fudan Univ Shanghai Ultra Precis Opt Mfg Engn Ctr Dept Opt Sci &

    Engn Shanghai 200433 Peoples R China;

    Fudan Univ Shanghai Ultra Precis Opt Mfg Engn Ctr Dept Opt Sci &

    Engn Shanghai 200433 Peoples R China;

    Fudan Univ Shanghai Ultra Precis Opt Mfg Engn Ctr Dept Opt Sci &

    Engn Shanghai 200433 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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