Imaging Science and Photochemistry ›› 2002, Vol. 20 ›› Issue (4): 253-261.DOI: 10.7517/j.issn.1674-0475.2002.04.253

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PHOTOCATALYTIC OXIDATION OF NITRITE

CUI Yu-min   

  1. Department of Chemistry, Fuyang Teacher’s College, Anhui Fuyang 236032, P. R. China
  • Received:2001-09-26 Revised:2001-12-17 Online:2002-07-23 Published:2002-07-23

Abstract: The treatment of waste water containing nitrite over Bi2O3 is studied.The primary factors which influence the oxidation efficiency of nitrite are discussed.The results show that the oxidation efficiency of nitrite can reach 97.0% by using Bi2O3 as photocatalyst,with its quantity of 0.050 g,pH of 3.70,the nitrite’s initial concentration of 400.0 mg/L,illumination time of 1 h.

Key words: photocatalyst, bismuth trioxide, nitrite

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