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首页> 外文期刊>RSC Advances >Ag nanoparticle-decorated CoS nanosheet nanocomposites: a high-performance material for multifunctional applications in photocatalysis and supercapacitors
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Ag nanoparticle-decorated CoS nanosheet nanocomposites: a high-performance material for multifunctional applications in photocatalysis and supercapacitors

机译：AG纳米粒子装饰COS纳米片纳米复合材料：用于光催化和超级电容器中多功能应用的高性能材料

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摘要

A novel Ag/CoS nanocomposite has been successfully synthesized by attaching Ag nanoparticles on the surface of CoS nanosheets with the assistance of light illumination. The photocatalytic activity of the prepared Ag/CoS photocatalysts was evaluated by the decomposition of methylene blue (MB) under visible light. The composites exhibited enhanced photocatalytic activities compared with the pure CoS nanosheets and the 2 wt% Ag/CoS composite showed the best performance, which was 2 times higher than pristine CoS. It was illustrated that the improved photocatalytic activity of Ag/CoS photocatalysts mainly stems from the elevated charge separation efficiency caused by surface plasmon resonance of Ag nanoparticles. Furthermore, the Ag/CoS supercapacitor electrode showed a high capacitance of 370 F g(-1) at a current density of 1 A g(-1) in 1 M KOH aqueous electrolyte. The electrode exhibited excellent cyclic stability after 1000 cycles at 10 A g(-1) current density. This work can be helpful for the exploration of plasmonic photocatalysts with enhanced photocatalytic activity and higher capacitance performance.
机译：通过在光照射的辅助下将Ag纳米颗粒附着在COS纳米片的表面上，成功地合成了一种新的Ag / COS纳米复合材料。通过在可见光下分解亚甲基蓝（MB）的分解来评价制备的Ag / COS光催化剂的光催化活性。与纯COS纳米片相比，复合材料表现出增强的光催化活性，2wt％Ag / COS复合材料显示出最佳性能，比原始COS高2倍。结果表明，Ag / COS光催化剂的改善的光催化活性主要是由Ag纳米颗粒的表面等离子体共振引起的升高的电荷分离效率。此外，Ag / COS超级电容器电极在1M KOH含水电解质中的电流密度为1Ag（-1）的电流密度为370°F G（-1）的高电容。在10Ag（-1）电流密度为1000次循环后，电极表现出优异的环状稳定性。这项工作对勘探具有增强的光催化活性和更高的电容性能，有助于勘探等离子体光催化剂。

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  • 来源
    《RSC Advances》 |2016年第60期|共7页
  • 作者

    Xu Qing; Jiang Deli; Wang Tianyong; Meng Suci; Chen Min;

  • 作者单位

    Jiangsu Univ Sch Chem &

    Chem Engn Zhenjiang 212013 Peoples R China;

    Jiangsu Univ Sch Chem &

    Chem Engn Zhenjiang 212013 Peoples R China;

    Jiangsu Univ Sch Chem &

    Chem Engn Zhenjiang 212013 Peoples R China;

    Jiangsu Univ Sch Chem &

    Chem Engn Zhenjiang 212013 Peoples R China;

    Jiangsu Univ Sch Chem &

    Chem Engn Zhenjiang 212013 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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