▎ 摘　　要

NOVELTY - A doped graphene quantum dot organic-solvent resistant ultrafiltration membrane is prepared by taking high molecular polymer, pore-foaming agent and solvent, mixing, adding graphene quantum dot nanoparticle, stirring for 0.5-10 hours, defoaming, coating on nonwoven fabrics, standing for 1-100 seconds, soaking into gel bath for 5-60 minutes, adding polymer casting solution, separating, taking out, washing with deionized water, remove film surface solution, soaking into isopropanol solution for 1-24 hours, adding crosslinking agent solution, crosslinking for 0.5-5 hours, taking out, and washing. USE - Method for preparing doped graphene quantum dot organic-solvent resistant ultrafiltration membrane (claimed). ADVANTAGE - The product has flux of 200-800 L/(m2.h) at 0.1 MPa and 80-99% bovine serum albumin rejection. It has improved mechanical performance, enhanced performance and stability. The method is simple and low-cost suitable for industrial organic solvent system separation.