Journal
CHINESE CHEMICAL LETTERS
Volume 30, Issue 12, Pages 2139-2146Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.cclet.2019.04.057
Keywords
Electrochemical advanced oxidation processes; Organic compounds; Oxidants; Free radicals; Reaction mechanism
Categories
Funding
- National Natural Science Foundation of China [51878423]
- Graduate Student's Research and Innovation Fund of Sichuan University [2018YJSY075]
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The electrochemical advanced oxidation processes (EAOPs) have been extensively applied in the treatment of organic pollutants degradation. Herein, the mini review provides the coupling systems about EAOPs and different oxidants (e.g., persulfate (PS), peroxymonosulfate (PMS), and ozone (O-3)), including EAOPs-PS systems, EAOPs-PMS systems, EAOPs-peroxone systems, and photoelectro-oxidants systems, for the organic compounds degradation. The coupling system of EAOPs with oxidants is an effective way to improve the generated free radicals (e.g., HO center dot and SO4 center dot- ) concentration and to accelerate pollutant degradation. In this review, we make a summary of the homogeneous and heterogeneous EAOPs-oxidant processes. The reaction mechanisms of EAOPs combined with different oxidants are elucidated in detail, as well as the synergistic effect for improving the degradation and mineralization efficiency. (C) 2019 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.
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