Preparation of Highly Antibacterial Polyethersulfone/Sulfonated Polyethersulfone Blend Composite Membrane and Research on Its Dye Separation Performance.

Bringing sulfonic acid groups into conventional polyethersulfone (PES) materials to prepare PES/sulfonated polyethersulfone (SPES) composite membranes has been shown to markedly enhance the hydrophilicity of the membranes and boost their separation efficiency in water treatment applications. However, membrane fouling due to microbial activity remains a critical challenge in the practical use of these membranes. Despite this, research into the antibacterial capabilities of PES/SPES composite membranes is scarce.