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首页> 外文期刊>Advanced energy materials >Microwave-Induced Metal Dissolution Synthesis of Core–Shell Copper Nanowires/ZnS for Visible Light Photocatalytic H_2 Evolution
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Microwave-Induced Metal Dissolution Synthesis of Core–Shell Copper Nanowires/ZnS for Visible Light Photocatalytic H_2 Evolution

机译：微波诱导的金属溶解合成核 - 壳铜纳米线/ Zns，可见光光催化H_2进化

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摘要

A microwave-induced metal dissolution strategy is developed for in situ synthesis of copper nanowires/ZnS (CuNWs/ZnS) hybrids with core-shell structure. The CuNWs are used as microwave antennas to create local "super-hot" surfaces to further initiate ZnS crystallization with full coverage on CuNWs. With the help of S2-, the hot metal surface further results in the CuNWs dissolution with promoted Cu+ diffusion and incorporation into the ZnS lattice. With the narrowed bandgap of ZnS and the strongly coupled interface between CuNWs and ZnS created by microwaves, the as-prepared hybrid composites exhibit an enhanced activity and stability in visible light for the photocatalytic H-2 evolution. The corresponding H-2 evolution rate reaches up to 10722 mu mol h(-1) g(-1) with apparent quantum efficiency (AQE) of 69% under 420 nm LED irradiation, showing a remarkably high AQE among the noble-metal free visible light-driven photocatalysts and demonstrating a promising potential in practical applications to deal with the energy crisis.
机译：用于使用核心壳结构的铜纳米线/ ZnS（CUNW / ZnS）杂种的微波诱导的金属溶解策略。 CUNWS用作微波天线，以创建本地“超级热”表面，以进一步启动ZNS结晶，以满足CUNW的全面覆盖。在S2-的帮助下，热金属表面进一步导致CUNWS溶解与促进的Cu +扩散并掺入ZNS格子中。利用Zns的狭窄带隙和微波产生的CUNW和Zns之间的强耦合界面，AS制备的混合复合材料在光催化H-2进化中表现出可见光的增强活性和稳定性。相应的H-2进化速率高达10722μmolH（-1）g（-1），具有69％的420nm LED照射的表观量子效率（aqe），在无贵金属中显示出显着高的aqe可见光触发的光催化剂，并在实际应用中展示了解能源危机的有希望的潜力。

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  • 来源
    《Advanced energy materials》 |2019年第22期|1900775.1-1900775.9|共9页
  • 作者

    Xiao Shuning; Dai Wenrui; Liu Xiaoyan; Pan Donglai; Zou Hangjun; Li Guisheng; Zhang Guoqiang; Su Chenliang; Zhang Dieqing; Chen Wei; Li Hexing;

  • 作者单位

    Shenzhen Univ Coll Phys & Optoelect Engn Minist Educ Int Collaborat Lab 2D Mat Optoelect Sci & Technol SZU NUS Collaborat Innovat Ctr Optoelect Sci & Te Shenzhen 518060 Peoples R China|Natl Univ Singapore Dept Chem 3 Sci Dr 3 Singapore 117543 Singapore|Shanghai Normal Univ Coll Chem & Mat Sci Int Joint Lab Resource Chem Shanghai 200234 Peoples R China;

    Natl Univ Singapore Dept Chem 3 Sci Dr 3 Singapore 117543 Singapore;

    Shanghai Normal Univ Coll Chem & Mat Sci Int Joint Lab Resource Chem Shanghai 200234 Peoples R China;

    Shanghai Normal Univ Coll Chem & Mat Sci Int Joint Lab Resource Chem Shanghai 200234 Peoples R China;

    Shanghai Normal Univ Coll Chem & Mat Sci Int Joint Lab Resource Chem Shanghai 200234 Peoples R China;

    Shanghai Normal Univ Coll Chem & Mat Sci Int Joint Lab Resource Chem Shanghai 200234 Peoples R China;

    Shenzhen Univ Coll Phys & Optoelect Engn Minist Educ Int Collaborat Lab 2D Mat Optoelect Sci & Technol SZU NUS Collaborat Innovat Ctr Optoelect Sci & Te Shenzhen 518060 Peoples R China;

    Shenzhen Univ Coll Phys & Optoelect Engn Minist Educ Int Collaborat Lab 2D Mat Optoelect Sci & Technol SZU NUS Collaborat Innovat Ctr Optoelect Sci & Te Shenzhen 518060 Peoples R China;

    Shanghai Normal Univ Coll Chem & Mat Sci Int Joint Lab Resource Chem Shanghai 200234 Peoples R China;

    Natl Univ Singapore Dept Chem 3 Sci Dr 3 Singapore 117543 Singapore|Natl Univ Singapore Suzhou Res Inst 377 Lin Quan St Suzhou Ind Pk Suzhou 215123 Jiangsu Peoples R China|Natl Univ Singapore Dept Phys 2 Sci Dr 3 Singapore 117542 Singapore;

    Shanghai Normal Univ Coll Chem & Mat Sci Int Joint Lab Resource Chem Shanghai 200234 Peoples R China;

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  • 正文语种 eng
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  • 关键词

    copper nanowires; H-2 evolution; microwave synthesis; photocatalysis;

    机译：铜纳米线;H-2进化;微波合成;光催化;

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