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首页> 外文期刊>Materials Research Bulletin >Enhanced photosensitized degradation of rhodamine B on CdS/TiO_2 nanocomposites under visible light irradiation
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Enhanced photosensitized degradation of rhodamine B on CdS/TiO_2 nanocomposites under visible light irradiation

机译:可见光照射下CdS / TiO_2纳米复合材料上罗丹明B的光敏降解增强

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摘要

visible-light-driven photocatalysts, CdS/TiO_2 nanocomposites were synthesized by a simple hydrother-mal method. Their formation and structures were characterized by X-ray diffractometer, transmission electron microscopy, diffuse reflectance spectroscopy, and X-ray photoelectron spectroscopy. Taking rhodamine B (RhB) as a model, their photocatalytic activities in aqueous phase under visible light irradiation (420 < λ < 800 nm) were tested. The results showed that the composite of CdS and TiO_2 with appropriate oxidation reduction energy levels enhanced the charge separation and extended the absorption response into visible light region. Thus, the photosensitized degradation of RhB was largely enhanced. The degradation mechanism was explored concretely.
机译:采用简单的水热法合成了可见光驱动的光催化剂CdS / TiO_2纳米复合材料。通过X射线衍射仪,透射电子显微镜,漫反射光谱和X射线光电子能谱对它们的形成和结构进行了表征。以若丹明B(RhB)为模型,测试了它们在可见光(420 <λ<800 nm)照射下在水相中的光催化活性。结果表明,具有合适的氧化还原能级的CdS和TiO_2复合物增强了电荷分离,并将吸收响应扩展到可见光区域。因此,RhB的光敏降解大大增强。具体探讨了降解机理。

著录项

  • 来源
    《Materials Research Bulletin》 |2013年第9期|3025-3031|共7页
  • 作者单位

    Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Sciences and Engineering, Nanjing University of Information Sciences and Engineering, Nanjing 210044, PR China,Research Institute of Photocatalysis, State Key Laboratory Breeding Base of Photocatalysis, Fuzhou University, Fuzhou 350002, PR China,Shandong Province Key Laboratory of Life-Organic Analysis, Qufu Normal University, Qufu 273165, PR China;

    Shandong Province Key Laboratory of Life-Organic Analysis, Qufu Normal University, Qufu 273165, PR China;

    Research Institute of Photocatalysis, State Key Laboratory Breeding Base of Photocatalysis, Fuzhou University, Fuzhou 350002, PR China;

    Research Institute of Photocatalysis, State Key Laboratory Breeding Base of Photocatalysis, Fuzhou University, Fuzhou 350002, PR China;

    Research Institute of Photocatalysis, State Key Laboratory Breeding Base of Photocatalysis, Fuzhou University, Fuzhou 350002, PR China;

    Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Sciences and Engineering, Nanjing University of Information Sciences and Engineering, Nanjing 210044, PR 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);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    A. Composite; A. Semiconductor; B. Chemical synthesis; D. Catalytic properties;

    机译:A.复合材料;A。半导体;B。化学合成;D。催化性能;

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