▎ 摘　　要

NOVELTY - A graphene oxide and solvent resistant nanofiltration membrane preparing method involves dispersing uniformly polymer of intrinsic microporosity-1 in the organic solution A to obtain an organic solution of polymer of intrinsic microporosity-1, dispersing graphene oxide in water to obtain an aqueous solution of graphene oxide, and adding the aqueous solution of the graphene oxide to the solvent B, and stirring to obtain a graphene oxide mixture. The graphene oxide mixture is added to the organic solution of the polymer of intrinsic microporosity-1 to obtain a graphene oxide-polymer of intrinsic microporosity mixed solution, added solvent C to the graphene oxide-polymer of intrinsic microporosity mixed solution, stirred the mixture to obtain a dispersed graphene oxide-polymer of intrinsic microporosity solution, and vacuum filtered a microporous polymer composited on the base film. USE - Method for preparing graphene oxide and solvent resistant nanofiltration membrane. ADVANTAGE - The method enables preparing graphene oxide and solvent resistant nanofiltration membrane with uniform, simple and mild operation. DETAILED DESCRIPTION - A graphene oxide and solvent resistant nanofiltration membrane preparing method involves dispersing uniformly polymer of intrinsic microporosity-1 in the organic solution A to obtain an organic solution of polymer of intrinsic microporosity-1 at a concentration of 0.1-0.3 g/L, dispersing graphene oxide in water to obtain an aqueous solution of graphene oxide having a concentration of 0.1-0.3 g/L, and adding the aqueous solution of the graphene oxide to the solvent B, and uniformly stirring to obtain a graphene oxide mixture. The graphene oxide mixture is added to the organic solution of the polymer of intrinsic microporosity-1 to obtain a graphene oxide-polymer of intrinsic microporosity mixed solution in a mass ratio of 0.5-4:1, added solvent C to the graphene oxide-polymer of intrinsic microporosity mixed solution, stirred the mixture continuously to obtain a uniformly dispersed graphene oxide-polymer of intrinsic microporosity solution, and vacuum filtered a microporous polymer composited on the base film, where the organic solution A is tetrahydrofuran, chloroform, dichloromethane, the solvent B is a mixture of N,N-dimethylformamide, tetrahydrofuran, water, water and tetrahydrofuran, and the solvent C is N,N-dimethylformamide, tetrahydrofuran, water or a mixture of water and tetrahydrofuran.