Recent advances in electrocatalysts for halogenated organic pollutant degradation

Electrocatalysis has recently been extensively employed for the degradation of halogenated organic pollutants (HOPs) that normally act as persistent, toxic, and bioaccumulative substances in the environment and pose threats to aquatic species as well as human beings. This review article broadly give...

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Published inEnvironmental science. Nano Vol. 6; no. 8; pp. 2332 - 2366
Main Authors Chen, Zhijie, Liu, Yiwen, Wei, Wei, Ni, Bing-Jie
Format Journal Article
LanguageEnglish
Published Cambridge Royal Society of Chemistry 08.08.2019
Subjects
Anodes
Anodizing
Bioaccumulation
Biodegradation
Biological activity
Catalysis
Catalysts
Cathodes
Coordination compounds
Dehalogenation
Design optimization
Electrocatalysis
Electrocatalysts
Exploration
Halogenation
Metals
Mineralization
Pollutants
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Summary:Electrocatalysis has recently been extensively employed for the degradation of halogenated organic pollutants (HOPs) that normally act as persistent, toxic, and bioaccumulative substances in the environment and pose threats to aquatic species as well as human beings. This review article broadly gives the up-to-date status on promising electrocatalysts for the degradation of HOPs, with particular emphasis on the strategies for promoting the activities of catalysts. Firstly, the catalysts for the oxidative mineralization process including metallic oxide- and carbon-based anodes, as well as the oxidative dehalogenation mechanism of these catalysts, are comprehensively presented. Secondly, the catalysts for the reductive degradation process, which involves metal- and metal complex-based cathodes, together with their applications and organic transformation pathways, are fully analyzed. Thirdly, recent advances in the integrated techniques are introduced, and the integration of membrane techniques, biological methods, Fenton processes, and photocatalysis with electrocatalysis is discussed. Finally, several key directions for further research are exploited, which include catalyst design, experimental optimization, scientific exploration, and effective coupling techniques. Advanced electrocatalysts for halogenated organic pollutant degradation.
Bibliography:Zhijie Chen received his B.S. and M.S. degrees from Wuhan University of Technology in 2015 and 2018, respectively. He is currently pursuing his Ph.D. degree in Environmental Engineering at the University of Technology Sydney. His research work focuses on the synthesis of transition-metal-based catalysts and their applications in environmental remediation and energy conversion.
Wei Wei received her PhD degree in environmental science and engineering from Harbin Institute of Technology (HIT), China in 2018. Her research focused on development of innovative nanomaterials for environmental application and bioenergy conversions from wastes. Currently, Dr. Wei is a research fellow at the University of Technology Sydney, Australia. Her research expertise lies in renewable energy, bioelectrochemistry and environmental biotechnology. She has published over 30 papers in peer-reviewed international journals.
Dr. Yiwen Liu is currently a Chancellor's Postdoctoral Research Fellow at the University of Technology Sydney. Before that, Dr. Liu acquired his PhD in Environmental Engineering at The University of Queensland. His research interests mainly include sewer processing, biological wastewater treatment and electrochemical oxidation technologies.
Prof. Bing-Jie Ni received his Ph.D. degree in environmental engineering in June 2009. He joined the Technical University of Denmark as a postdoctoral research fellow from September of 2009 and then joined The University of Queensland from February 2011 as a senior research fellow. He is currently a full professor in environmental engineering. He has been working in the field of renewable energy production, particularly the interface between chemical engineering and environmental technology. His work focuses on the integration of these disciplines to develop innovative and sustainable technological solutions to achieve efficient energy generation from renewable resources.
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ISSN:2051-8153
2051-8161
DOI:10.1039/c9en00411d