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Template-free Sol-hydrothermal Synthesis of a Nitrogen Doped Anatase/rutile/brookite TiO2 Nano-rod Bundle for Visible Light Driven Photocatalysis
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1.School of Chemical Engineering,Inner Mongolia University of Technology;2.Institute of Green Chemistry and Chemical Technology,Jiangsu University

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    Abstract:

    Nitrogen doped anatase/rutile/brookite titanium dioxide (N-TiO2) regular nano-rod bundle photocatalyst for improving visible light photocatalytic activity was prepared through a template-free sol-hydrothermal method. The properties of the materials were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), ultraviolet-visible diffuse reflectance spectra (UV-Vis DRS), Fourier transform infrared (FTIR) spectroscopy and X-ray photoelectron spectroscopy (XPS). Photocatalytic degradation of methyl orange (MO) in an aqueous solution under visible light irradiation was used as a probe reaction to evaluate the photocatalytic activity of the mixed-phase N-TiO2 nano-rod bundle. The results of characterization combined with photocatalytic activity of MO photodegradation showed that the synergistic effects among N doping, mixed-phase and nano-rod bundle structure were the main reason to improve photocatalytic activity of mixed-phase N-TiO2 nano-rod bundle compared with P25-TiO2. The possible mechanism of MO degradation by mixed phase N-TiO2 nano-rod bundle photocatalyst was preliminarily discussed.

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[Liu Zhengjiang, Bao Xiaoli, Xing Lei, Yang Jucai, Zhang Qiancheng. Template-free Sol-hydrothermal Synthesis of a Nitrogen Doped Anatase/rutile/brookite TiO2 Nano-rod Bundle for Visible Light Driven Photocatalysis[J]. Rare Metal Materials and Engineering,2019,48(1):77~84.]
DOI:10.12442/j. issn.1002-185X.20170606

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History
  • Received:July 10,2017
  • Revised:September 07,2017
  • Adopted:September 11,2017
  • Online: February 18,2019
  • Published: