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Electro-oxidation of organic pollutants by reactive electrochemical membranes

Trellu, Clément and Chaplin, Brian P. and Coetsier, Clémence and Esmilaire, Roseline and Cerneaux, Sophie and Causserand, Christel and Cretin, Marc Electro-oxidation of organic pollutants by reactive electrochemical membranes. (2018) Chemosphere, 208. 159-175. ISSN 0045-6535

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Official URL: https://doi.org/10.1016/j.chemosphere.2018.05.026

Abstract

Electro-oxidation processes are promising options for the removal of organic pollutants from water. The major appeal of these technologies is the possibility to avoid the addition of chemical reagents. However, a major limitation is associated with slow mass transfer that reduces the efficiency and hinders the potential for large-scale application of these technologies. Therefore, improving the reactor configuration is currently one of the most important areas for research and development. The recent development of a reactive electrochemical membrane (REM) as a flow-through electrode has proven to be a breakthrough innovation, leading to both high electrochemically active surface area and convection-enhanced mass transport of pollutants. This review summarizes the current state of the art on REMs for the electro-oxidation of organic compounds by anodic oxidation. Specific focuses on the electroactive surface area, mass transport, reactivity, fouling and stability of REMs are included. Recent advances in the development of sub-stoichiometric titanium oxide REMs as anodes have been made. These electrodes possess high electrical conductivity, reactivity (generation of •OH), chemical/electrochemical stability, and suitable pore structure that allows for efficient mass transport. Further development of REMs strongly relies on the development of materials with suitable physico-chemical characteristics that produce electrodes with efficient mass transport properties, high electroactive surface area, high reactivity and long-term stability.

Item Type:Article
HAL Id:hal-01871937
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Other partners > University of Illinois at Urbana-Champaign - UIUC (USA)
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Deposited By: Loetitia MOYA
Deposited On:04 Dec 2018 13:37

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