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首页> 外文期刊>RSC Advances >Facile synthesis of CeO2 nanoparticle sensitized CdS nanorod photocatalyst with improved visible-light photocatalytic degradation of rhodamine B
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Facile synthesis of CeO2 nanoparticle sensitized CdS nanorod photocatalyst with improved visible-light photocatalytic degradation of rhodamine B

机译：CEO2纳米粒子敏化CDS纳米棒光催化剂的容易合成，改善了罗丹明B的可见光光催化降解

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摘要

A heterostructure photocatalyst consisting of one-dimensional (1D) CdS nanorods (NRs) and cerium dioxide (CeO2) nanoparticles (NPs) was successfully synthesized via a solvothermal method. Different characterization techniques confirmed that CeO2 NPs were intimately attached on CdS NRs. The visible-light- driven photocatalytic activity was evaluated by the discoloration of rhodamine B (RhB). It was indicated that, under visible light illumination, the photocatalytic rate constant of CdS/CeO2 was nearly 3.4 times and 28 times higher than that of pure CdS and pure CeO2, respectively, owing to the high oxygen storage capacity of the CdS/CeO2 heterostructure, and the inhibition of electron-hole pair recombination benefitting from efficient electron transfer from CdS NRs to CeO2 NPs. In addition, the degradation mechanism of RhB on CdS/CeO2 was also discussed. This durable nanocomposite catalyst, with its excellent combination of CdS NRs and CeO2 NPs, is able to be a promising catalyst for RhB degradation under visible-light irradiation.
机译：通过溶剂质方法成功地合成了由一维（1D）Cds纳米棒（NRS）和二氧化铈（CeO 2）纳米颗粒（NPS）组成的异质结构光催化剂。不同的表征技术证实，CEO2 NPS在CDS NR上密切相关。通过罗丹明B（RHB）的变色来评价可见光光催化活性。结果表明，由于CDS / CeO2异质结构的高氧气储存能力，Cds / CeO2的光催化速率分别比纯Cds和纯CEO2的光催化率常数分别接近3.4倍，比纯CD和纯CEO2高28倍。并且抑制电子 - 空穴对重组的抑制来自CDS NRS至CeO2 NPS的有效电子转移。此外，还讨论了CDS / CEO2上的RHB的降解机制。该耐久的纳米复合催化剂，其具有优异的Cds NRS和CeO2 NPS的组合，能够是在可见光照射下进行RHB降解的有希望的催化剂。

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  • 来源
    《RSC Advances》 |2015年第97期|共9页
  • 作者

    Gu Shansi; Chen Yaoning; Yuan Xingzhong; Wang Hou; Chen Xiaohong; Liu Yang; Jiang Qian; Wu Zhibin; Zeng Guangming;

  • 作者单位

    Hunan Univ Coll Environm Sci &

    Engn Changsha 410082 Hunan Peoples R China;

    Hunan Univ Coll Environm Sci &

    Engn Changsha 410082 Hunan Peoples R China;

    Hunan Univ Coll Environm Sci &

    Engn Changsha 410082 Hunan Peoples R China;

    Hunan Univ Coll Environm Sci &

    Engn Changsha 410082 Hunan Peoples R China;

    Collaborat Innovat Ctr Resource Conserving &

    Envi Changsha 410083 Peoples R China;

    Hunan Univ Coll Environm Sci &

    Engn Changsha 410082 Hunan Peoples R China;

    Hunan Univ Coll Environm Sci &

    Engn Changsha 410082 Hunan Peoples R China;

    Hunan Univ Coll Environm Sci &

    Engn Changsha 410082 Hunan Peoples R China;

    Hunan Univ Coll Environm Sci &

    Engn Changsha 410082 Hunan Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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