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首页> 外文期刊>Journal of Materials Research >Highly efficient H_2 evolution over ZnO-ZnS-CdS heterostructures from an aqueous solution containing SO_3~(2-) and S~(2-) ions
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Highly efficient H_2 evolution over ZnO-ZnS-CdS heterostructures from an aqueous solution containing SO_3~(2-) and S~(2-) ions

机译：含有SO_3〜（2-）和S〜（2-）离子的水溶液在ZnO-ZnS-CdS异质结构上高效H_2析出

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摘要

ZnO-ZnS-CdS heterostructure photocatalysts for water splitting were designed and prepared by a wet chemistry method. It was found that ZnO-ZnS-CdS heterostructures are highly active photocatalysts for H_2 evolution under simulated solar light irradiation in an aqueous solution containing SO_3~(2-) and S~(2-) ions as sacrificial reagents. H_2 evolution with (ZnO)_2-(ZnS)_1-(CdS)_1 heterostructure reaches up to 2790 μmol h~(-1) g~(-1). The photoexcited electrons in the ZnO-ZnS-CdS heterostructures have a much longer lifetime (>225 ns) than that of the sole ZnO, ZnS, and CdS (<65 ns). The favorable interface processes of the heterostructures make a significant contribution to high photocatalytic H_2 evolution rate.
机译：通过湿化学法设计制备了ZnO-ZnS-CdS水分解异质结构光催化剂。 ZnO-ZnS-CdS异质结构是在以SO_3〜（2-）和S〜（2-）离子为牺牲试剂的水溶液中模拟太阳光照射下H_2析出的高活性光催化剂。具有（ZnO）_2-（ZnS）_1-（CdS）_1异质结构的H_2演化达到2790μmolh〜（-1）g〜（-1）。 ZnO-ZnS-CdS异质结构中的光激发电子的寿命（> 225 ns）比唯一的ZnO，ZnS和CdS（<65 ns）更长。异质结构的有利界面过程对光催化H_2的高析出速率做出了重要贡献。

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  • 来源
    《Journal of Materials Research》 |2010年第1期|39-44|共6页
  • 作者

    Xuewen Wang; Gang Liu; Zhi-Gang Chen; Feng Li; Gao Qing Lu; Hui-Ming Cheng;

  • 作者单位

    Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, People's Republic of China;

    Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, People's Republic of China;

    Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, People's Republic of China;

    Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, People's Republic of China;

    ARC Centre of Excellence for Functional Nanomaterials, School of Engineering and Australian Institute of Bioengineering and Nanotechnology, The University of Queensland, QLD 4072, Australia;

    Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, People's Republic of 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);
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