▎ 摘　　要

NOVELTY - Preparing polymer-covalent organic framework-reduced graphene oxide composite film comprises (a) oxidizing graphene to obtain graphene oxide, (b) mixing linear polymer and the bifunctional covalent organic framework monomer containing aldehyde groups and performing alkylation reaction to obtain covalent organic framework monomer containing the polymer, (c) adding the covalent organic framework monomer containing polymer, the covalent organic framework monomer containing amino group and graphene oxide go to dimethylformamide solution, uniformly mixing for condensation reaction and heating the reaction. USE - The method is useful for preparing polymer-covalent organic framework-reduced graphene oxide composite film. ADVANTAGE - The method: effectively binds the two types of 2D materials together; improves the separation of covalent organic framework photo-generated charges and the migration of photo-generated electrons to reduced graphene oxide. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for polymer-covalent organic framework-reduced graphene oxide composite film is prepared by the above mentioned method.