Photocatalysis-membrane integrated system for organic pollutants removal

Separation membranes based on two-dimensional (2D) materials offer great potential in water remediation due to their inherent lamellar structure. However, they are limited by membrane fouling when dealing with organic pollutants, resulting in unsatisfactory sustainability and reusability. Herein, a photocatalysis-membrane integrated system was fabricated by barium titanate (BTO) and ll-cyclodextrin (ll-CD) modified MXene, which achieves the integration of separation-adsorption-degradation processes for the removal of organic pollutants. It was found that BTO could be embedded in MXene/ll-CD matrices by vacuum filtration strategy, providing photocatalytic activity for MXene/ll-CD/BTO (MCB) membrane. Moreover, the membrane showed favorable efficiency and sustainability in cationic dyes removal, approaching 100% even after 10 consecutive cycles. This photocatalysis-membrane system provided a valuable insight into improving efficiency and reusability in water treatment.

Automated summary

A photocatalysis-membrane integrated system was fabricated using barium titanate and ll-cyclodextrin modified MXene, which showed favorable efficiency and sustainability in the removal of organic pollutants.