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首页> 外文期刊>RSC Advances >The solvent-driven formation of multi-morphological Ag-CeO2 plasmonic photocatalysts with enhanced visible-light photocatalytic reduction of CO2
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The solvent-driven formation of multi-morphological Ag-CeO2 plasmonic photocatalysts with enhanced visible-light photocatalytic reduction of CO2

机译：具有增强的可见光光催化减少CO2的溶剂驱动的多形态AG-CEO2等离子体光催化剂的形成

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摘要

Ag-CeO2 plasmonic photocatalysts with multiple morphologies were synthesized via a simple solvent-driven method. The phase compositions, morphologies and optical properties of the samples were systematically investigated. A combination of noble metal Ag and semiconductor CeO2 in certain solvents (such as methanol and ethylene glycol) enhanced surface plasmon resonance (SPR), which was attributed to the good dispersion of Ag particles on CeO2 and high Ag-0 ratios on the surface. The enhanced SPR effect boosted absorption of incident light and facilitated charge carrier separation and transport efficiency caused by the formation of Schottky barriers, thus promoting VLPCR performance. The optimum ACG sample (ethylene glycol was adopted as the solvent) exhibited the maximum VLPCR activity, achieving a CH4 yield of 100 mol and a CH3OH yield of 35 mol per gram of catalyst per hour during 6 h visible-light irradiation.
机译：通过简单的溶剂驱动方法合成具有多种形态的AG-CEO2等离子体光催化剂。 系统地研究了样品的相组合物，形态学和光学性质。 在某些溶剂（如甲醇和乙二醇）中的贵金属Ag和半导体CeO2的组合增强了表面等离子体共振（SPR），其归因于Ag颗粒对表面上的CeO 2和高效-0比的良好分散。 增强的SPR效果引起了入射光的吸收，并通过肖特基屏障的形成引起的促进电荷载体分离和运输效率，从而促进了VLPCR性能。 最佳ACG样品（作为溶剂采用乙二醇）表现出最大VLPCR活性，在6h可见光照射期间，每小时每克催化剂为35摩尔的CH 4产率和35摩尔的CH 3 OH产率。

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  • 来源
    《RSC Advances》 |2018年第71期|共9页
  • 作者

    Cai Wei; Shi Yunpeng; Zhao Yunxia; Chen Mindong; Zhong Qin; Bu Yunfei;

  • 作者单位

    Nanjing Univ Informat Sci &

    Technol Jiangsu Collaborat Innovat Ctr Atmospher Environm Jiangsu Key Lab Atmospher Environm Monitoring &

    P Sch Environm Sci &

    Engn Nanjing 210044 Jiangsu Peoples R China;

    Nanjing Univ Informat Sci &

    Technol Jiangsu Collaborat Innovat Ctr Atmospher Environm Jiangsu Key Lab Atmospher Environm Monitoring &

    P Sch Environm Sci &

    Engn Nanjing 210044 Jiangsu Peoples R China;

    Nanjing Univ Informat Sci &

    Technol Jiangsu Collaborat Innovat Ctr Atmospher Environm Jiangsu Key Lab Atmospher Environm Monitoring &

    P Sch Environm Sci &

    Engn Nanjing 210044 Jiangsu Peoples R China;

    Nanjing Univ Informat Sci &

    Technol Jiangsu Collaborat Innovat Ctr Atmospher Environm Jiangsu Key Lab Atmospher Environm Monitoring &

    P Sch Environm Sci &

    Engn Nanjing 210044 Jiangsu Peoples R China;

    Nanjing Univ Sci &

    Technol Sch Chem &

    Engn Nanjing 210094 Jiangsu Peoples R China;

    Nanjing Univ Informat Sci &

    Technol Jiangsu Collaborat Innovat Ctr Atmospher Environm Jiangsu Key Lab Atmospher Environm Monitoring &

    P Sch Environm Sci &

    Engn Nanjing 210044 Jiangsu Peoples R China;

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  • 正文语种 eng
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