▎ 摘　　要

NOVELTY - Preparing graphene oxide modified high-performance forward osmosis composite membrane comprises (i) preparing graphene oxide/the polysulfhone support layer, ultrasonically dispersing, adding polysulfone material, stirring, casting, de-foaming, pouring, knifing, immersing, automatically separating, soaking, and (ii) preparing graphene oxide/polyamide composite membrane synthetic polyamide layer on the support layer using interfacial polymerization, dipping, removing, washing, filtering, soaking, storing and investigating. USE - The method is useful for preparing graphene oxide modified high-performance forward osmosis composite membrane (claimed). DETAILED DESCRIPTION - Preparing graphene oxide modified high-performance forward osmosis composite membrane comprises (i) preparing graphene oxide/the polysulfhone support layer, adding N, N-dimethyl formamide, polyethylene glycol 600, Span-80 (RTM: Sorbitan monooleate) into the three-mouth flask, adding a certain amount of graphene oxide into the solution, ultrasonically dispersing to completely, adding polysulfone material, stirring at a certain temperature to obtain the uniform graphene oxide/polysulfone film casting liquid, casting still to completely, de-foaming under the reaction temperature, pouring a certain amount of casting inverted the glass plate of the polyester screen, knifing by scraper with certain thickness, immersing in ultra-pure water to coagulate to obtain film, automatically separating when the film on from the glass plate, soaking to solvent is separated out in the ultra-pure water to obtain the flat graphene oxide/polysulfone support layer, and (ii) preparing graphene oxide/polyamide composite membrane synthetic polyamide layer on the support layer using interfacial polymerization, dipping base film in a certain concentration of m-phenylenediamine aqueous phase, removing the base film from the aqueous phase, washing with superpure aqueous solution of the support layer on the back side, and filtering stain with two side of filter paper absorbing film, and soaking the film in the oil phase, that is to say a certain concentration of benzene three acid chloride of hexane solution, removing out and removing the redundant oil phase to obtain the graphene oxide/polyamide forward osmosis composite membrane to make the more firm of polyamide composite layer polymer, adding the composite membrane into a drying box to heat process, removing out, storing in de-ionized water as performance of the film, taking the prepared positive osmosis composite membrane in a crossflow filtration system for testing, investigating water flux of graphene oxide modified forward osmosis composite membrane, reverse salt flux and antipollution.