▎ 摘　　要

NOVELTY - Preparing modified graphene oxide film based on anion cation control comprises providing graphene oxide, and dissolving the graphene oxide in water to obtain graphene oxide sol, providing a porous carrier, forming graphene oxide film on the surface of the porous carrier based on the graphene oxide sol, providing a anion/cationic solution, impregnating the graphene oxide film in the anion/cationic solution for modification treatment. USE - The modified graphene oxide film based on anion cation control is useful for seawater desalination (claimed). ADVANTAGE - The method enables to prepare modified graphene oxide film in simple, eco-friendly and cost-effective manner that has high water permeation selectivity and permeation flux, and has important practical significance. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) a modified graphene oxide film based on anion cation control; and (2) use of modified graphene oxide film for seawater desalination. DESCRIPTION OF DRAWING(S) - The drawing shows a flow chart illustrating the method for preparing modified graphene oxide film based on anion cation control (Drawing includes non-English language text).