A Review on the Application of Catalytic Membranes Technology in Water Treatment

For effective water purification, the combination of membrane separation and catalytic degradation technologies not only permits continuous pollutant degradation but also successfully reduces membrane fouling. In recent years, catalytic membranes (CMs) have garnered a lot of interest in the water treatment industry. The main benefits of CMs are methodically explained in this review, emphasizing the synergistic effect of membrane separation and catalysis. These benefits include stable catalyst loading achieved through membrane structure manipulation, nanoconfinement, and effective degradation of organic pollutants. The application of catalytic membranes in water treatment is then thoroughly summarized, and they are separated into five main groups based on their unique catalytic reaction mechanisms: ozone catalytic membranes, photocatalytic membranes, electrocatalytic membranes, Fenton-type catalytic membranes, and persulfate catalytic membranes. The mechanisms and performance characteristics of each kind of CM are looked at in greater detail. Finally, research directions and future prospects for water treatment using catalytic membranes are proposed. This review provides recommendations for future research and development to ensure the effective use of catalytic membranes in water treatment, in addition to providing a thorough examination of the advancements made in their application in the treatment of various wastewaters.