▎ 摘　　要

NOVELTY - Method for preparing graphene and UIO-66 composite aerogel, involves (a) adding graphene oxide dispersion to a reactor, and chemically reducing the self-assembly to obtain graphene hydrogel, adding UIO-66 powder, where the mass ratio of UIO-66 powder to graphene oxide is 1:100-100:1, (b) sealing the reactor, shaking or stirring, heating at 100-300 degrees C for 0.5-10 hours, and promoting the formation of three-dimensional frame structure of graphene oxide self-assembly and the uniform composite of UIO-66 and graphene oxide sheets to produce graphene and UIO-66 composite hydrogel, and (c) drying to obtain the composite aerogel. USE - The method is useful for preparing graphene and UIO-66 composite aerogel used for adsorbing methylene blue dye (all claimed). ADVANTAGE - The method has mild conditions and simple operation, and effectively prevents the agglomeration of graphene oxide sheets and crystals, and the prepared composite aerogel has self-supporting porous structure, large specific surface area, excellent adsorption performance for methylene blue dye at 1 atm and 298 K under visible light, three-dimensional structure, and excellent mechanical properties, and is easy to recycle and reuse.