Electro-catalytic degradation of bisphenol A with modified Co sub(3)O sub(4)/ beta -PbO sub(2)/Ti electrode

Ti-base Co sub(3)O sub(4)/ beta -PbO sub(2) composite electrodes were prepared using electro-deposition and characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), cyclic voltammetry and the accelerated life testing, it indicated that the self-made electrode had high activity i...

Full description

Saved in:
Bibliographic Details
Published in:Electrochimica acta 2014-02, Vol.118, p.169-175
Main Authors: Zhao, Jun, Zhu, Chengzhu, Lu, Jun, Hu, Caiju, Peng, Shuchuan, Chen, Tianhu
Format: Article
Language:English
Subjects:
Bisphenol A
Degradation
Electric potential
Electrodes
Electrolysis
Reaction kinetics
Scanning electron microscopy
Titanium
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Ti-base Co sub(3)O sub(4)/ beta -PbO sub(2) composite electrodes were prepared using electro-deposition and characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), cyclic voltammetry and the accelerated life testing, it indicated that the self-made electrode had high activity in electrolysis as well as excellent corrosion resistance and excellent catalytic performance. The results showed that the removal efficiency of COD sub(Cr) could be reached up to 92.2% after 1.5 h electrolysis at NaCl concentration of 0.020 mol.L super(-1), bisphenol A initial concentration of 20 mg.L super(-1), applied voltage of 20 V, electrode spacing of 7 cm and electrolyte pH of 5. The reaction mechanism and kinetics of Co sub(3)O sub(4)/ beta -PbO sub(2)/Ti composite electrodes electro-catalytic degradation bisphenol A mainly caused by the OH radical attacking parent molecules and the degradation followed pseudo-first-order kinetics.
ISSN:0013-4686
DOI:10.1016/j.electacta.2013.12.005