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Hydrothermal synthesis of WO3/Fe2O3 nanosheet arrays on iron foil for photocatalytic degradation of methylene blue

  • Rui Lei
  • Hongwei Ni
  • Rongsheng Chen
  • Bowei Zhang
  • Weiting Zhan
  • Yang Li
Article

Abstract

The growth of WO3/Fe2O3 nanosheet arrays on iron foil was fabricated by a facile and efficient hydrothermal treatment. The morphology and optical property of as-prepared WO3/Fe2O3 nanocomposites were characterized by using field-emission scanning electron microscopy, energy-dispersive X-ray spectrometry, transmission electron microscopy, X-ray diffraction and UV–Vis diffuse reflectance spectra. The photocatalytic activity of the as-synthesized WO3/Fe2O3 nanocomposite was evaluated by the degradation of methylene blue (MB) in aqueous solution under visible-light (λ > 420 nm) irradiation. It was observed that the sample obtained with a hydrothermal reaction time for 2 h exhibited the best photocatalytic performance. The kinetics of the MB degradation was found to comply with the Langmuir–Hinshelwood model. The photocatalytic efficiencies of WO3/Fe2O3NSAs correlated with the effective separation of photogenerated electron–hole pairs. Hence, the WO3/Fe2O3NSAs are excellent candidate for visible-light-driven photocatalysts.

Keywords

Fe2O3 Methylene Blue Photocatalytic Activity Tungsten Oxide Photocatalytic Performance 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

This work was supported by the National Natural Science Foundation of China (Nos. 51171133, 51471122, and 51601136) and the Key Program of Natural Science Foundation of Hubei Province of China (No. 2015CFA128).

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Copyright information

© Springer Science+Business Media New York 2017

Authors and Affiliations

  • Rui Lei
    • 1
  • Hongwei Ni
    • 1
  • Rongsheng Chen
    • 1
  • Bowei Zhang
    • 1
  • Weiting Zhan
    • 1
  • Yang Li
    • 1
  1. 1.The State Key Laboratory of Refractories and Metallurgy, School of Materials and MetallurgyWuhan University of Science and TechnologyWuhanChina

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