Anodic oxidation for the degradation of organic pollutants: Anode materials, operating conditions and mechanisms. A mini review

Yingying Jiang; Haitao Zhao; Jie Liang; Luochao Yue; Tingshuai Li; Yonglan Luo; Qian Liu; Siyu Lu; Abdullah M. Asiri; Zhengjun Gong; Xuping Sun

Electrochemistry Communications (Feb 2021)

Anodic oxidation for the degradation of organic pollutants: Anode materials, operating conditions and mechanisms. A mini review

Yingying Jiang,
Haitao Zhao,
Jie Liang,
Luochao Yue,
Tingshuai Li,
Yonglan Luo,
Qian Liu,
Siyu Lu,
Abdullah M. Asiri,
Zhengjun Gong,
Xuping Sun

Affiliations

Yingying Jiang: Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China; Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 610031, Sichuan, China
Haitao Zhao: Materials and Interfaces Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, Guangdong, China
Jie Liang: Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China
Luochao Yue: Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China
Tingshuai Li: Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China
Yonglan Luo: Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China
Qian Liu: Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China
Siyu Lu: Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, Henan, China
Abdullah M. Asiri: Chemistry Department, Faculty of Science & Center of Excellence for Advanced Materials Research, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
Zhengjun Gong: Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 610031, Sichuan, China; Corresponding authors.
Xuping Sun: Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China; Corresponding authors.

Journal volume & issue: Vol. 123
p. 106912

Abstract

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Organic pollutants in domestic sewage, agricultural runoff, industrial wastewater, and contaminated land pose a serious threat to human beings as well as to ecosystems. Anodic oxidation is one of the technologies most commonly used for the degradation of organic pollutants. In this review, we present the current status of promising anodic oxidation technologies for the degradation of organic pollutants, with fundamental insights into anode materials, operating conditions and mechanisms. Firstly, anodes based on metallic Pt, metal oxides (RuO2, IrO2, PbO2 and SnO2), and carbon (BDD and others) are critically reviewed. Secondly, strategies for the effective removal of organic pollutants in wastewater under appropriate operating conditions are systematically investigated. Thirdly, the anodic oxidation mechanism is comprehensively summarized with illustrations of how the organic pollutants can be broken down into small molecules of low or zero toxicity. Finally, we conclude with some future perspectives for application of anodic oxidation.

Published in Electrochemistry Communications

ISSN: 1388-2481 (Print); 1873-1902 (Online)
Publisher: Elsevier
Country of publisher: United States
LCC subjects: Technology: Chemical technology: Industrial electrochemistry; Science: Chemistry
Website: https://www.journals.elsevier.com/electrochemistry-communications

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