Paper Title:
Electrochemical Degradation of Phenol Using the Oxygen Diffusion Cathode in an Undivided Cell
  Abstract

Electrochemical degradation of phenol was studied in an undivided cell with a Ti/IrO2/RuO2 anode and a carbon/polytetrafluoroethylene (C/PTFE) O2-fed cathode which produced hydrogen peroxide (H2O2) by the electro-reduction of dissolved oxygen. The effect of current density, supporting electrolyte concentration and initial pH on the removal efficiency of phenol were investigated systematically. Results indicated that the optimal removal efficiency of phenol was achieved under the conditions of current density of 39 mA/cm2 and supporting electrolyte concentration of 0.02 mol/L. The phenol removal efficiency in the neutral condition was higher than that of acidic and basic conditions. The chemical oxygen demand (COD) and total organic carbon (TOC) removal achieved 71.6% and 63.6% for 100 min’s electrolysis, respectively. Benzoquinone, maleic acid, oxalic acid, acetic acid and formic acid were identified as intermediates by HPLC. A general phenol degradation pathway involving all these intermediates was proposed.

  Info
Periodical
Advanced Materials Research (Volumes 183-185)
Chapter
Environmental Biotechnology
Edited by
Yanguo Shi and Jinlong Zuo
Pages
575-579
DOI
10.4028/www.scientific.net/AMR.183-185.575
Citation
H. Wang, Z. Y. Bian, G. Lu, X. J. Wei, X. J. Yu, D. Z. Sun, "Electrochemical Degradation of Phenol Using the Oxygen Diffusion Cathode in an Undivided Cell", Advanced Materials Research, Vols. 183-185, pp. 575-579, 2011
Online since
January 2011
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Price
$32.00
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