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高等学校化学研究 ›› 2020, Vol. 36 ›› Issue (3): 447-452.doi: 10.1007/s40242-020-0106-2

• Articles • 上一篇    下一篇

Ti-MOF Derived N-Doped TiO2 Nanostructure as Visible-light-driven Photocatalyst

HE Yilei1, ZHANG Xing1, WEI Yanze1,2, CHEN Xiaoyu1, WANG Zumin2, YU Ranbo1,3   

  1. 1. Department of Physical Chemistry, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China;
    2. State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China;
    3. Key Laboratory of Advanced Material Processing & Mold, Ministry of Education, Zhengzhou University, Zhengzhou 450002, P. R. China
  • 收稿日期:2020-04-13 修回日期:2020-05-12 出版日期:2020-06-01 发布日期:2020-05-30
  • 通讯作者: WANG Zumin, YU Ranbo E-mail:wangzm@ipe.ac.cn;ranboyu@ustb.edu.cn
  • 基金资助:
    Supported by the National Natural Science Foundation of China(Nos.21671016, 51872024, 51932001), the National Key R&D Program of China(No.2018YFA0703503) and the China Postdoctoral Science Foundation(No.2019M650849).

Ti-MOF Derived N-Doped TiO2 Nanostructure as Visible-light-driven Photocatalyst

HE Yilei1, ZHANG Xing1, WEI Yanze1,2, CHEN Xiaoyu1, WANG Zumin2, YU Ranbo1,3   

  1. 1. Department of Physical Chemistry, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China;
    2. State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China;
    3. Key Laboratory of Advanced Material Processing & Mold, Ministry of Education, Zhengzhou University, Zhengzhou 450002, P. R. China
  • Received:2020-04-13 Revised:2020-05-12 Online:2020-06-01 Published:2020-05-30
  • Contact: WANG Zumin, YU Ranbo E-mail:wangzm@ipe.ac.cn;ranboyu@ustb.edu.cn
  • Supported by:
    Supported by the National Natural Science Foundation of China(Nos.21671016, 51872024, 51932001), the National Key R&D Program of China(No.2018YFA0703503) and the China Postdoctoral Science Foundation(No.2019M650849).

摘要: Nanostructured N-doped TiO2 photocatalyst has been prepared via a new approach from Ti-based MOF[NH2-MIL-125(Ti)] precursor. The success of N doping enhances light absorption and narrows the bandgap. Moreover, the as-prepared nanostructure is constructed with tiny nanoparticles and resembles a pie-like morphology inherited from the MOF, which accelerates electron transfer. Hence, as a photocatalyst for the degradation of methylene blue(MB) under visible light irradiation, the N-doped TiO2(N-TiO2) nanostructure shows higher photocatalytic activity with a reaction rate constant of 0.018 min-1 than that of the TiO2-P25 and TiO2 under the visible light.

关键词: TiO2, Metal-organic framework, Photo-degradation, N doped, Visible-light photocatalysis

Abstract: Nanostructured N-doped TiO2 photocatalyst has been prepared via a new approach from Ti-based MOF[NH2-MIL-125(Ti)] precursor. The success of N doping enhances light absorption and narrows the bandgap. Moreover, the as-prepared nanostructure is constructed with tiny nanoparticles and resembles a pie-like morphology inherited from the MOF, which accelerates electron transfer. Hence, as a photocatalyst for the degradation of methylene blue(MB) under visible light irradiation, the N-doped TiO2(N-TiO2) nanostructure shows higher photocatalytic activity with a reaction rate constant of 0.018 min-1 than that of the TiO2-P25 and TiO2 under the visible light.

Key words: TiO2, Metal-organic framework, Photo-degradation, N doped, Visible-light photocatalysis