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Photocatalytic and electrochemical degradation of methylene blue by titanium dioxide

  • Letter
  • Materials Science
  • Published:
Chinese Science Bulletin

Abstract

A photoanode structure for dye-sensitized solar cells has been applied into the photocatalytic/electrochemical cooperative degradation of methylene blue solutions. The low eutectic point of titanium dioxide (TiO2) with a fluorine-doped tin dioxide (FTO) conductive layer results in a high reactivity of TiO2 for the photocatalytic process as well as a good electron transfer for the electrochemical process. The porous TiO2 layer maintains a large surface area for the degradations. Through the combinational process, the degradation velocity was improved by ~36 %, compared to a pure photocatalytic process.

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Acknowledgments

This work was partially supported by the National High Technology Research and Development Program of China (2011AA050507) and the National Natural Science Foundation of China (61006150, 50821004, and 61076051). We acknowledge the assistance as well as constructive discussions from Prof. Xiulan Zhang in Institute of Semi-conductors, Chinese Academy of Sciences.

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Authors and Affiliations

  1. School of Renewable Energy, North China Electric Power University, Beijing, 102206, China

    Min Yang, Yuliang Zhang & Nuofu Chen

  2. School of Material Science and Engineering, Shanghai University, Shanghai, 200444, China

    Xinling Liu

  3. Institute of Evolutionary Biology and Environmental Studies, University of Zürich, Zürich, Switzerland

    Min Yang & Helmut Brandl

  4. General Energy Research Department, Paul Scherrer Institute, Villigen, Switzerland

    Jikun Chen & Thomas Lippert

  5. School of Chemistry and Environment, Beihang University, Beijing, 100191, China

    Fanqi Meng

Authors
  1. Min Yang
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  2. Xinling Liu
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  3. Jikun Chen
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  4. Fanqi Meng
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  5. Yuliang Zhang
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  6. Helmut Brandl
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  7. Thomas Lippert
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  8. Nuofu Chen
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Correspondence to Xinling Liu or Nuofu Chen.

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Yang, M., Liu, X., Chen, J. et al. Photocatalytic and electrochemical degradation of methylene blue by titanium dioxide. Chin. Sci. Bull. 59, 1964–1967 (2014). https://doi.org/10.1007/s11434-014-0267-9

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  • DOI: https://doi.org/10.1007/s11434-014-0267-9

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