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Recent development of mixed metal oxide anodes for electrochemical oxidation of organic pollutants in water

Paper ID Volume ID Publish Year Pages File Format Full-Text
39634 45829 2014 21 PDF Available
Title
Recent development of mixed metal oxide anodes for electrochemical oxidation of organic pollutants in water
Abstract

•Recent advance of recalcitrant organic removal using MMO anodes are reviewed.•Surface modification to improve the catalytic activity of MMO anodes is discussed.•Influences of operating parameters on process efficiency are reviewed.•Shortcomings in current research with MMO anodes are critically identified.•Challenges and perspectives of MMO anodes for their future application are proposed.

Mixed metal oxides (MMOs) have been extensively employed for heterogeneous catalysis. In recent years, MMOs have received an intensive interest as anode materials for electrochemical treatment of wastewaters which contain recalcitrant organics. This review article gives an overview of the classification of MMO anodes systems, synthesis methods, characterization techniques, and recent advance of removing or alleviating various recalcitrant organic pollutants using MMO anodes, highlighting areas of consensus and currently unresolved issues. Practical issues pertinent to modification to the catalytic activities of MMO anodes are discussed, including nano- and microstructured deposits, doping and polymer composites. Electrogenerated reactive oxygen species (ROS) with MMO anodes and their determination by various techniques have also been reviewed. In addition, this article discusses several important factors which could affect the electrochemical oxidation of recalcitrant organics with MMO anodes, and critically identifies the shortcomings in current research including discrepant results and ambiguous conclusions. Finally, the challenges and possible improvement of MMO anodes for their future application are also proposed.

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Keywords
Mixed metal oxide (MMO); Organic pollutants; Electrochemical oxidation; Wastewater treatment; Surface modification
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Recent development of mixed metal oxide anodes for electrochemical oxidation of organic pollutants in water
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 480, 20 June 2014, Pages 58–78
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
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