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Electrochemical Degradation of 4, 4’-(propane-2, 2-diyl) diphenol in Water with CeO2/ß-PbO2/Ti Electrode

International Journal of Electrochemical Science, ISSN: 1452-3981, Vol: 9, Issue: 5, Page: 2354-2366
2014
  • 12
    Citations
  • 0
    Usage
  • 2
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    12
    • Citation Indexes
      12
  • Captures
    2

Article Description

Ti-base CeO 2 /p-PbO 2 composite electrodes were prepared by using electro-deposition and its morphology and crystal structure and electrochemical characterization of composite electrodes were analyzed by scanning electron microscopy (SEM), X-ray diffraction (XRD), cyclic voltammetry and the accelerated life testing. The efficiency of electrocatalytic degradation of 4,4’-(propane-2,2- diyl)diphenol (BPA) by using composite electrodes as anode were examined as a function of initial solution pH, applied voltage and supporting electrolyte concentration were investigated. The results showed that CeO 2 /p-PbO 2 /Ti electrode had an excellent corrosion resistance and excellent catalytic performance higher catalytic activity in electro-chemical degradation of 4, 4’-(propane-2, 2-diyl) diphenol in water. The removal efficiency of CODCr could be reached 95.7% after 1.5 h electrolysis at NaCl concentration of 0.020 mol/L, 4,4’-(propane-2,2-diyl)diphenol initial concentration of 20 mg/L, applied voltage of 20 V, electrode spacing of 7 cm and electrolyte pH of 5. The reaction mechanism and kinetics of CeO 2 /p-PbO 2 /Ti composite electrodes electrochemical degradation 4, 4’-(propane-2, 2- diyl) diphenol mainly caused by the OH radical attacking parent molecules and the degradation followed pseudo-first-order kinetics.

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