▎ 摘　　要

NOVELTY - Preparing polyethyleneimine-cobalt-dodecane-trimethylamine(CAT)-1/graphene oxide complex separation membrane, comprises polymerizing mixed solution of polyethyleneimine, graphene oxide and cobalt-CAT-1 on the surface in an alkaline environment to obtain polyethyleneimine-cobalt-CAT-1/graphene oxide crosslinking solution, suction filtration of polyethyleneimine-cobalt-CAT-1/graphene oxide crosslinking solution, cobalt-CAT-1 and oxygen on pre-wetted polyvinylidene fluoride substrate. USE - The polyethyleneimine-cobalt-CAT-1/graphene oxide complex separation membrane is useful in dye adsorption (claimed). ADVANTAGE - The polyethyleneimine-cobalt-CAT-1/graphene oxide complex separation membrane has high permeation flux, and adsorption efficiency of crystal violet) is all above 99.2%. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: polyethyleneimine-cobalt-CAT-1/graphene oxide complex separation membrane prepared by above mentioned method; and use of polyethyleneimine-Co-CAT-1/graphene oxide complex separation membrane to the separation of oil-water emulsion.