▎ 摘　　要

NOVELTY - A large flux modified polysulfone membrane preparing method involves dispersing the nano graphene oxide, the porogen and the modifier in an organic solvent to form a dispersion, adding polysulfone to the dispersion, heating and stirring in a water bath until the polysulfone is dissolved to form a casting solution, defoaming the casting solution, pouring onto a glass plate to scrape the liquid film, leaving the liquid film in the air for a predetermined time to volatilize part of the organic solvent, placing in the coagulation bath together with the glass plate, solidifying the liquid film in the coagulation bath and detaching from the glass plate to form a film autonomously, washing the film to remove the organic solvent and the porogen in the film to obtain the finished product. USE - Method for preparing large flux modified polysulfone membrane. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a large flux modified polysulfone membrane.