Paper Title:
Optimization of Operating Parameters for Decolorization of Metal Complex Dyes by UV/H2O2 Process
  Abstract

In this paper, the effects of operating parameters such as UV light wavelength, initial pH, reaction temperature and hydrogen peroxide concentration on decolorization of metal complex dyes (Neutral Bordeaux GRL, Neutral Pink BL and Neutral Blue BNL) by UV/H2O2 process were studied in detail. The results showed that the decolorization rate constants were obviously enhanced with the increase of UV intensity. In UV (254nm)/H2O2 system, 94.4% decolorization of Neutral Bordeaux GRL, 99.2% decolorization of Neutral Pink BL and 65.4% decolorization of Neutral Blue BNL were achieved after 60 min reaction. The results also indicated that both suitable amount of H2O2 and initial pH were needed for effective decolorization of different metal complex dyes. The reaction activation energy of Neutral Bordeaux GRL, Neutral Pink BL and Neutral Blue BNL were 3.43, 14.4 and 23.39 KJ mol-1, respectively.

  Info
Periodical
Advanced Materials Research (Volumes 347-353)
Chapter
Chapter 3: Development and Utilization of Wind Energy
Edited by
Weiguo Pan, Jianxing Ren and Yongguang Li
Pages
2245-2248
DOI
10.4028/www.scientific.net/AMR.347-353.2245
Citation
J. J. Zhu, L. Lu, J. X. Chen, "Optimization of Operating Parameters for Decolorization of Metal Complex Dyes by UV/H2O2 Process", Advanced Materials Research, Vols. 347-353, pp. 2245-2248, 2012
Online since
October 2011
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Price
$32.00
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