Paper Title:
Distribution of Fe(II) Concentration during Degradation of Rhodamine B by Fenton Reagent
  Abstract

The effects of reaction conditions including Fe2+, H2O2, oxalic acid, and humic acid dosages were discussed on the Fenton degradation of rhodamine B (RB). The optimal reaction conditions of Fenton reaction were 0.15 mM Fe2+, 5 mM H2O2, and pH 3.0, and the decolorization rate RB (10 mg/L) reached 97.8% after 30min catalytic degradation. The changes of Fe2+ concentrations in Fenton system has been focused on in this work. A relatively low concentration of Fe2+ was maintained during reaction process when Fe2+ and H2O2 were added with high concentration, and thus RB was degraded quickly. The results implicated that Fe2+ dosage played a very important role in the degradation of RB, and H2O2 dosage didn’t have an apparent influence on the degradation of RB in general. The Fenton degradation of RB could be inhibited in the presence of oxalic acid and humic acid, especially at a high concentration of oxalic acid and humic acid.

  Info
Periodical
Advanced Materials Research (Volumes 261-263)
Edited by
Jingying Zhao
Pages
744-748
DOI
10.4028/www.scientific.net/AMR.261-263.744
Citation
X. X. Ou, F. J. Zhang, C. Wang, Y. N. Wu, J. Du, "Distribution of Fe(II) Concentration during Degradation of Rhodamine B by Fenton Reagent", Advanced Materials Research, Vols. 261-263, pp. 744-748, 2011
Online since
May 2011
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