▎ 摘　　要

NOVELTY - A dopamine bionic modification-based oxidation graphene film comprises lamellar graphene oxide uniformly laminated on dopamine-modified base film to form nanochannel of oxidation graphene film. USE - Dopamine bionic modification-based oxidation graphene film for use in oil - water mixture emulsion such as surfactant-stabilized oil-in-water emulsion separation (all claimed). ADVANTAGE - The graphene film has high separating efficiency and high stability, and can be repeatedly used many times, and can be prepared in simple manner. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing a dopamine bionic modification-based oxidation graphene film.