▎ 摘　　要

NOVELTY - The polysulfone material based-reverse osmosis membrane has a support frame that is a polyester knitted fabric after stiffening. A polysulfone layer is formed on the support frame and has pores formed in the surface. The total area of pores formed in the surface of the polysulfone layer accounts for 5-15% of the total surface area of the polysulfone layer. The support frame and the polysulfone layer form a base film for enhancing mechanical strength. A dense layer with desalination effect is arranged on the polysulfone layer. The dense layer is a polyamide layer doped with graphene oxide. The doping amount of graphene oxide in the dense layer is 0.05-0.1 wt.%. USE - Polysulfone material based-reverse osmosis membrane such as artificial semipermeable membrane used as core component of reverse osmosis technology for effectively removing dissolved salts, colloids, microorganisms and organic matter in water. ADVANTAGE - The reverse osmosis membrane has good mechanical strength, is green and environmentally-friend, has reduced cost, enhanced water amount, and enhanced water flux caused by accumulating dirt after being used for a long time. The polysulfone material has excellent mechanical strength and environmental friendliness. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation method of the polysulfone material based-reverse osmosis membrane, which involves (S1) preparing the polysulfone, organic solvent, and pore-forming agent in a certain proportion to form a casting liquid, (S2) coating the casting liquid on the support until the casting liquid solidifies into a film to form a base film, (S3) preparing the solution A in which the solute is aromatic amine and the solvent is water, the preparation solute is aromatic acyl chloride, and the solvent is an organic solvent, and adding the solution B of graphene oxide, and (S4) immersing the base membrane in solution A and solution B, leaving the mixture for 5-10 minutes at room temperature, obtaining a dense layer, and performing heat treatment.