▎ 摘　　要

NOVELTY - High-performance nanofiltration membrane comprises a base film, an intermediate layer and a polyamide separation layer sequentially fixed in a polymethyl methacrylate frame. The intermediate layer is made of molecular sieve/graphene oxide composite material. The molecular sieves are epithelial-mesenchymal transition (EMT) molecular sieves, superoxide dismutase (SOD) molecular sieves and Faujasite-type (FAU) molecular sieves. USE - Used as high-performance nanofiltration membrane. ADVANTAGE - The preparation process is simple, and the obtained nanofiltration membrane has excellent separation performance and desalination performance, and broad application prospects. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparing the high-performance nanofiltration membrane.