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高等学校化学研究 ›› 2001, Vol. 17 ›› Issue (3): 281-286.

• Articles • 上一篇    下一篇

Iron-Doped Titania Nanoparticles for the Photocatalytic Oxidative Degradation of Nitrite

XU An-wu, ZHU Jing-yan, GAO Yuan, LIU Han-qin   

  1. School of Chemistry and Chemical Engineering, Zhongshan University, Guangzhou 510275, P. R. China
  • 收稿日期:2000-06-27 出版日期:2001-08-24 发布日期:2011-08-04
  • 基金资助:

    Supported by the National Natural Science Foundation of China.

Iron-Doped Titania Nanoparticles for the Photocatalytic Oxidative Degradation of Nitrite

XU An-wu, ZHU Jing-yan, GAO Yuan, LIU Han-qin   

  1. School of Chemistry and Chemical Engineering, Zhongshan University, Guangzhou 510275, P. R. China
  • Received:2000-06-27 Online:2001-08-24 Published:2011-08-04
  • Supported by:

    Supported by the National Natural Science Foundation of China.

PDF (PC)

被引次数

10

摘要： Iron-doped titania nanoparticles exhibit a higher photocatalytic activity than pure TiO2 for the degradation of nitrite.The optimum Fe-doped content in terms of activity is approximately 0.5 %.The increase in photoactivity is probably due to the higher adsorption and the inhibition of electron-hole recombination.The photocatalytic oxidation reaction of nitrite over the Fe-doped TiO2 catalyst follows zero-order kinetics, which is different from that over pure TiO2.The reaction rate decreases linearly with the increase of the pH of the solution.

关键词: Nitrite degradation, Photocatalytic oxidation, Titania, Iron doped

Abstract: Iron-doped titania nanoparticles exhibit a higher photocatalytic activity than pure TiO2 for the degradation of nitrite.The optimum Fe-doped content in terms of activity is approximately 0.5 %.The increase in photoactivity is probably due to the higher adsorption and the inhibition of electron-hole recombination.The photocatalytic oxidation reaction of nitrite over the Fe-doped TiO2 catalyst follows zero-order kinetics, which is different from that over pure TiO2.The reaction rate decreases linearly with the increase of the pH of the solution.

Key words: Nitrite degradation, Photocatalytic oxidation, Titania, Iron doped