Performance Stability and Regeneration Property of Catalytic Membranes Coupled with Advanced Oxidation Process: A Comprehensive Review

Abstract

The performance stability and regeneration property of catalytic membranes should be considered from a practical viewpoint. In this review, recent works concerning this issue have been comprehensively summarized. The performance stability of catalytic membranes was first summarized in terms of the two commonly employed evaluation ways, i.e., multi-cycle experiments and long-time filtration. The main deactivation reasons included the adsorption of pollutants and its oxidation intermediates, the change in chemical properties of the membranes, as well as leaching of metal species. After that, the regeneration property of the catalytic membranes was discussed according to the different regeneration methods including solvent washing, heat treatment, advanced oxidation, and others. This review further highlights the current achievements and hurdles in the performance stability and regeneration property of catalytic membranes and proposes recommendations for future works, including more attention on changes in the kinetic constant, trans-membrane pressure/flux and removals of total organic carbon/chemical oxygen demand, the selection of suitable cycle numbers and operation time, the development of new regeneration methods, as well as more studies on the pilot and larger scales.