Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/128266
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Type: Journal article
Title: Electro-assisted catalytic wet air oxidation of organic pollutants on a MnO@C/GF anode under room condition
Author: Zhai, L.
Duan, M.
Qiao, M.
Sun, M.
Wang, S.
Citation: Applied Catalysis B: Environmental, 2019; 256:117822-1-117822-10
Publisher: Elsevier
Issue Date: 2019
ISSN: 0926-3373
1873-3883
Statement of
Responsibility: 
Lin-Feng Zhai, Ming-Feng Duan, Meng-Xia Qiao, Min Sun, Shaobin Wang
Abstract: Catalytic oxygen (O₂) activation for oxidative removal of pollutants under ambient condition is important for pollution control. Herein, we report a hybrid of MnO catalyst confined in a porous carbon matrix on a graphite felt support (MnO@C/GF) for electro-activation of O₂ toward degradation of various pollutants at ambient condition. The electro-assisted catalytic wet air oxidation (ECWAO) process on anodic MnO@C/GF is able to completely mineralize dyes and typical pharmaceuticals and personal care products. Mechanistic studies indicate the oxidation of the organic pollutants in the ECWAO process involves chemisorption of O₂ on MnO, activation of the chemisorbed oxygen species via electro-oxidation reaction, and oxidation of organic pollutants by the activated chemisorbed oxygen species. The carbon matrix prevents MnO leaching during the ECWAO process, thus endowing the composite with excellent stability and reusability. The process demonstrates high efficiency, low energy input and environmental friendliness, exhibiting a great potential for practical wastewater treatment.
Keywords: Wet air oxidation; manganese monoxide; electrocatalysis; O₂ activation; organic degradation
Rights: © 2019 Elsevier B.V. All rights reserved.
RMID: 0030118534
DOI: 10.1016/j.apcatb.2019.117822
Appears in Collections:Chemical Engineering publications

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