Journal
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
Volume 10, Issue 3, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jece.2022.107896
Keywords
Hydrogen peroxide; Electro-Fenton; Electro-Peroxone; ORR-EO; Carbon-based materials
Categories
Funding
- National Natural Science Foundation of China [52070008]
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Recently, electrochemical advanced oxidation processes (EAOPs) for water treatment have been implemented using cathodic oxygen reduction reaction (ORR) to generate hydrogen peroxide (H2O2). H2O2 can be activated using reagents like Fe2+ and O3 to produce hydroxyl radicals (center dot OH) for further reduction of organic compounds. This study investigates carbon-based materials as catalysts for H2O2 generation cathode and introduces the development of cutting-edge EAOPs based on H2O2 generation cathode through three case studies. The future prospects of EAOPs based on H2O2 generation cathode are discussed.
Recently, electrochemical generation of hydrogen peroxide (H2O2) using cathodic oxygen reduction reaction (ORR) has been conventionally implemented in electrochemical advanced oxidation processes (EAOPs) for water treatment. H2O2 could be activated using reagents like Fe2+ and O3 to produce the hydroxyl radicals (center dot OH), and further reduce organics. The conventional Fenton, Peroxone and Electro-Oxidation (EO) processes were enhanced using H2O2 generation cathode to execute Electro-Fenton, Electro-Peroxone and ORR-EO processes. In this study, the carbon-based materials as catalysts for H2O2 generation cathode were generally investigated. The development of cutting-edge EAOPs based on H2O2 generation cathode was introduced using three stories. The future viewpoint of EAOPs based on H2O2 generation cathode was discussed.
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