Chinese Journal of Applied Chemistry ›› 1998, Vol. 0 ›› Issue (4): 25-28.

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Photocatalytic Reaction of NO2- Ion

Zhao Xiufeng, Sun Xiaodong, Zhang Guibin, Shi Fengshan, Wang Li   

  1. Department of Chemistry, Changji Teacher'S College, Changji 831100
  • Received:1997-12-29 Revised:1998-05-18 Published:1998-08-10 Online:1998-08-10

Abstract: NO2- ions can be remarkably reduced by reaction in the presence of TiO2 as catalyst under UV light irradiation.The kinetic study shows that it is a multistepwise complexreaction and the rate-determining step is the oxidation of NO2- ions on the surface of TiO2.The reaction follows Langmuir-Hiushelwood mechamsm.Oxygen promotes the reaction.

Key words: NO2-, photocatalysis, TiO2