▎ 摘　　要

NOVELTY - Preparing graphene-based Ag@ZIF-67 composite material film involves adding the MOF material to the solvent, and after uniformly stirring, adding the silver source and stirring to obtain solution A, adding reducing agent to solution A and stirring to obtain solution B and performing solid-liquid separation of solution B and washing and drying to obtain Ag@ZIF-67. Ag@ZIF-67 is added to the graphene oxide solution and stirred uniformly, and after vacuum filtration, a graphene-based Ag@ZIF-67 composite film is obtained. USE - Method for preparing graphene-based Ag@ZIF-67 composite material film for wastewater treatment (claimed). ADVANTAGE - The method enables to prepare graphene-based Ag@ZIF-67 composite material film, which has simple method, low cost, mild reaction conditions, simple operation, green raw materials, wide sources, wide application, strong mechanical structure, and reusability.