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Critical Issues and Guidelines to Improve the Performance of Photocatalytic Polymeric Membranes

Department of Chemical and Biomolecular Engineering, ETSIIyT, University of Cantabria Avda. Los Castros s/n, 39005 Santander, Spain
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Catalysts 2020, 10(5), 570; https://doi.org/10.3390/catal10050570
Received: 29 April 2020 / Revised: 15 May 2020 / Accepted: 17 May 2020 / Published: 19 May 2020
Photocatalytic membrane reactors (PMR), with immobilized photocatalysts, play an important role in process intensification strategies; this approach offers a simple solution to the typical catalyst recovery problem of photocatalytic processes and, by simultaneous filtration and photocatalysis of the aqueous streams, facilitates clean water production in a single unit. The synthesis of polymer photocatalytic membranes has been widely explored, while studies focused on ceramic photocatalytic membranes represent a minority. However, previous reports have identified that the successful synthesis of polymeric photocatalytic membranes still faces certain challenges that demand further research, e.g., (i) reduced photocatalytic activity, (ii) photocatalyst stability, and (iii) membrane aging, to achieve technological competitiveness with respect to suspended photocatalytic systems. The novelty of this review is to go a step further to preceding literature by first, critically analyzing the factors behind these major limitations and second, establishing useful guidelines. This information will help researchers in the field in the selection of the membrane materials and synthesis methodology for a better performance of polymeric photocatalytic membranes with targeted functionality; special attention is focused on factors affecting membrane aging and photocatalyst stability. View Full-Text
Keywords: membrane functionality; persistent organic pollutants; photocatalytic membranes; photocatalytic membrane reactor (PMR); composite polymeric membranes; wastewater treatment membrane functionality; persistent organic pollutants; photocatalytic membranes; photocatalytic membrane reactor (PMR); composite polymeric membranes; wastewater treatment
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MDPI and ACS Style

Romay, M.; Diban, N.; Rivero, M.J.; Urtiaga, A.; Ortiz, I. Critical Issues and Guidelines to Improve the Performance of Photocatalytic Polymeric Membranes. Catalysts 2020, 10, 570.

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