▎ 摘　　要

NOVELTY - Preparing graphene oxide/partially reducing graphene oxide composite film involves adding reducing agent into the graphene oxide water solution for partial reduction reaction to obtain partially reduced graphene oxide water solution, mixing the partially reduced graphene oxide water solution and graphene oxide water solution to obtain the mixed solution, covering the mixed solution on the surface of the micro-filtration membrane by a vacuum filtration method, and then drying to obtain the composite membrane. USE - Method for preparing graphene oxide/partially reducing graphene oxide composite film for separating the dye from the separation film (claimed). ADVANTAGE - The method enables to prepare graphene oxide/partially reducing graphene oxide composite film with excellent comprehensive performance. DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of a scanning electron microscope (SEM) of the GO/PrGO composite film according to Example 1.