Preparation of Highly Visible-Light Photocatalytic Active N-Doped TiO2 Microcuboids

  • Zhao, Kang ;
  • Wu, Zhiming ;
  • Tang, Rong ;
  • Jiang, Yadong
  • Received : 2013.04.03
  • Accepted : 2013.06.26
  • Published : 2013.08.20


N-doped $TiO_2$ microcuboids were successfully prepared by a simple one-pot hydrothermal method. The samples were characterized by X-ray diffraction, scanning electron microscopy, diffuse reflectance spectroscopy, and X-ray photoelectron spectroscopy. It was found that the N-doped $TiO_2$ microcuboids enhanced absorption in the visible light region, and exhibited higher activity for photocatalytic degradation of model dyes. Based on the experimental results, a visible light induced photocatalytic mechanism was proposed for N-doped anatase $TiO_2$ microcuboids.


Nitrogen-doping;$TiO_2$ microcuboid;Visible photocatalyst;Mechanism


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Supported by : National Natural Science Foundation of China