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Journal of the Iranian Chemical Society

, Volume 7, Issue 1, pp 134–141 | Cite as

The effects of copper ions on the catalytic degradation of azo dye acid chrome dark blue

  • J. W. Fan
  • X. H. Liu
  • Y. N. Huang
  • L. T. Pan
Article

Abstract

The effect of Cu2+ on the catalytic degradation of Acid chrome dark blue (ACDB) in UV-TiO2 process and Fenton process was studied. In these two processes, Cu2+ markedly inhibited the degradation of ACDB. These inhibition effects had an obvious relationship with the concentration of Cu2+. The experimental results indicated that in pH 5.0 buffer solution, ACDB reacted with Cu2+ with the formation of new complex Cu(ACDB)2. This interaction was favorable to protect some groups in ACDB from the oxidation of reactive oxygen species generated in UV-TiO2 process and Fenton process, and consequently had suppressing effects on degradation of ACDB.

Keywords

Copper ions Acid chrome dark blue Photocatalytical degradation Fenton-process 

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Copyright information

© Iranian Chemical Society 2010

Authors and Affiliations

  • J. W. Fan
    • 1
  • X. H. Liu
    • 1
  • Y. N. Huang
    • 1
  • L. T. Pan
    • 1
  1. 1.College of Environmental Science and EngineeringTongji UniversityShanghaiP. R. China

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