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首页> 外文期刊>Applied Surface Science >Self-assembled Bi2MoO6/TiO2 nanofiber heterojunction film with enhanced photocatalytic activities
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Self-assembled Bi2MoO6/TiO2 nanofiber heterojunction film with enhanced photocatalytic activities

机译：具有增强光催化活性的自组装Bi2MoO6 / TiO2纳米纤维异质结薄膜

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摘要

TiO2 nanofiber film (TiO2 NFF) was successfully fabricated by an ethylene glycol-assisted hydrothermal method, and then self-assembled flake-like Bi2MoO6 was grown on the surface of TiO2 nanofiber under alcohol thermal condition. The investigations indicate that the nanofiber structure of TiO2 films exhibits excellent visible light scattering property, the scattering light overlaps with the absorption band of Bi2MoO6, which can enhance the utility of incident light. The prepared Bi2MoO6/TiO2 composites show obviously enhanced photocatalytic activity for methylene blue (MB) degradation compared with pure TiO2 nanofiber under visible light irradiation (lambda > 420 nm). The enhanced photocatalytic activity is primarily attributed to the synergistic effect of visible light absorption and effective electron-hole separation at the interfaces of the two semiconductors, which is confirmed by photoluminescence (PL) and electrochemical tests. (C) 2016 Elsevier B.V. All rights reserved.
机译：利用乙二醇辅助水热法成功制备了TiO2纳米纤维薄膜（TiO2 NFF），然后在乙醇热条件下，在TiO2纳米纤维表面生长了自组装的片状Bi2MoO6。研究表明，TiO2薄膜的纳米纤维结构具有良好的可见光散射特性，该散射光与Bi2MoO6的吸收带重叠，可以提高入射光的利用率。与纯TiO2纳米纤维相比，制备的Bi2MoO6 / TiO2复合物在可见光（λ> 420 nm）辐照下对亚甲基蓝（MB）的降解具有明显增强的光催化活性。增强的光催化活性主要归因于可见光吸收和两种半导体界面上有效的电子-空穴分离的协同效应，这通过光致发光（PL）和电化学测试得到了证实。 （C）2016 Elsevier B.V.保留所有权利。

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  • 来源
    《Applied Surface Science》 |2017年第ptab期|303-310|共8页
  • 作者

    Li Hua; Zhang Tianxi; Pan Chao; Pu Chenchen; Hu Yang; Hu Xiaoyun; Liu Enzhou; Fan Jun;

  • 作者单位

    Northwest Univ, Sch Chem Engn, Xian 710069, Peoples R China;

    Northwest Univ, Sch Phys, Xian 710069, Peoples R China;

    Northwest Univ, Sch Chem Engn, Xian 710069, Peoples R China;

    Northwest Univ, Sch Chem Engn, Xian 710069, Peoples R China;

    Northwest Univ, Sch Chem Engn, Xian 710069, Peoples R China;

    Northwest Univ, Sch Phys, Xian 710069, Peoples R China;

    Northwest Univ, Sch Chem Engn, Xian 710069, Peoples R China;

    Northwest Univ, Sch Chem Engn, Xian 710069, Peoples R China;

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  • 正文语种 eng
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  • 关键词

    Bi2MoO6/TiO2; Heterojunction; Light scattering; Self-assembled;

    机译：Bi2MoO6 / TiO2;异质结;光散射;自组装;

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