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首页> 外文期刊>Environmental Science & Technology >Efficient Degradation of Benzene over LaVO_4/TiO_2 Nanocrystalline Heterojunction Photocatalyst under Visible Light Irradiation
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Efficient Degradation of Benzene over LaVO_4/TiO_2 Nanocrystalline Heterojunction Photocatalyst under Visible Light Irradiation

机译:LaVO_4 / TiO_2纳米晶异质结光催化剂在可见光照射下苯的高效降解

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摘要

A nanocrystal heterojunction LaVO_4/TiO_2 visible light photocatalyst has been successfully prepared by a simple coupled method. The catalyst was characterized by powder X-ray diffraction, nitrogen adsorption-desorption, transmission electron microscopy, UV-vis diffuse reflectance spectroscopy, X-ray photoelectron spectra, photoluminescence, and electrochemistry technology. The results showed that the prepared nanocomposite catalysts exhibited strong photocatalytic activity for decomposition of benzene under visible light irradiation with high photochemical stability. The enhanced photocatalytic performance of LaVO4/TiO_2 may be attributed to not only the matched band potentials but also interconnected heterojunction of LaVO_4 and TiO_2 nanoparticles.
机译:通过简单的偶联方法成功地制备了纳米晶异质结LaVO_4 / TiO_2可见光光催化剂。通过粉末X射线衍射,氮吸附-脱附,透射电子显微镜,UV-可见漫反射光谱,X射线光电子能谱,光致发光和电化学技术对催化剂进行了表征。结果表明,所制备的纳米复合催化剂在可见光照射下对苯的分解具有较强的光催化活性,具有较高的光化学稳定性。 LaVO4 / TiO_2的增强的光催化性能不仅可以归因于匹配的带电势,而且还可以归因于LaVO_4和TiO_2纳米粒子的相互连接的异质结。

著录项

  • 来源
    《Environmental Science & Technology》 |2009年第11期|4164-4168|共5页
  • 作者单位

    Research Institute of Photocatalysis, State Key Laboratory Breeding Base of Photocatalysis, Fuzhou University, Fuzhou, 350002, P.R. China;

    Research Institute of Photocatalysis, State Key Laboratory Breeding Base of Photocatalysis, Fuzhou University, Fuzhou, 350002, P.R. China;

    Research Institute of Photocatalysis, State Key Laboratory Breeding Base of Photocatalysis, Fuzhou University, Fuzhou, 350002, P.R. China;

    Research Institute of Photocatalysis, State Key Laboratory Breeding Base of Photocatalysis, Fuzhou University, Fuzhou, 350002, P.R. China;

    Research Institute of Photocatalysis, State Key Laboratory Breeding Base of Photocatalysis, Fuzhou University, Fuzhou, 350002, P.R. China;

    Research Institute of Photocatalysis, State Key Laboratory Breeding Base of Photocatalysis, Fuzhou University, Fuzhou, 350002, P.R. China;

    Research Institute of Photocatalysis, State Key Laboratory Breeding Base of Photocatalysis, Fuzhou University, Fuzhou, 350002, P.R. China;

    Research Institute of Photocatalysis, State Key Laboratory Breeding Base of Photocatalysis, Fuzhou University, Fuzhou, 350002, P.R. 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);美国《化学文摘》(CA);
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  • 正文语种 eng
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