▎ 摘　　要

NOVELTY - A graphene polyamide reverse osmosis membrane preparing method involves adding carboxylated graphite and polysulfone into N,N-dimethyl formamide, heating, subjecting to ultrasound and vacuum defoaming to obtain the casting solution, which is poured on glass sheet for knifing, soaked into de-ionized water to solidify to obtain polysulfone basement-membrane, added amination graphene, 4-dimethylamino pyridine, sodium laurate and m-phenylenediamine into de-ionized water to obtain water phase solution, and added acyl chlorination graphene, ether and isophthaloyl chloride into cyclohexane to obtain oil phase solution. The polysulfone basement-membrane is put into the water phase solution, taken out, utilized air knife for blowing away redundant water phase solution of surface, soaked into oil phase solution, carried out interface polymerization reaction, taken out, utilized air knife for removing excess oil phase solution, dried and washed with de-ionized water to obtain the product. USE - Method for preparing graphene polyamide reverse osmosis membrane. ADVANTAGE - The method enables preparing the graphene polyamide reverse osmosis membrane with effectively improving the water delivery environment and structure stability in the membrane, increasing the water flux of the reverse osmosis film body and prolonging the service life of the reverse osmosis membrane.