MOF‐Based Photocatalytic Membrane for Water Purification: A Review

Abstract Photocatalytic membranes can effectively integrate membrane separation and photocatalytic degradation processes to provide an eco‐friendly solution for efficient water purification. It is of great significance to develop highly efficient photocatalytic membranes driven by visible light to ensure the long‐term stability of membrane separation systems and the maximum utilization of solar energy. Metal‐organic framework (MOF) is an emerging photocatalyst with a well‐defined structure and tunable chemical properties, showing a broad application prospect in the construction of high‐performance photocatalytic membranes. Herein, this work provides a comprehensive review of recent advancements in MOF‐based photocatalytic membranes. Initially, this work outlines the main tailoring strategies that facilitate the enhancement of the photocatalytic activity of MOF‐based photocatalysts. Next, this work introduces commonly used methods for fabricating MOF‐based photocatalytic membranes. Subsequently, this work discusses the application and mechanisms of MOF‐based photocatalytic membranes toward organic pollutant degradation, metal ion removal, and membrane fouling mitigation. Finally, challenges in developing MOF‐based photocatalytic membranes and their practical applications are presented, while also pointing out future research directions toward overcoming these existing limitations.