▎ 摘　　要

NOVELTY - Preparing metal organic framework-graphene oxide composite material comprises mixing concentrated sulfuric acid and mixture of sodium nitrate and potassium permanganate, then adding water, hydrogen peroxide, manganese dioxide and graphite, washing the mixture with water, centrifuging the mixture, then spray-drying, dispersing graphite solid powder in water, treating the mixture, adding chromium(III) nitrate nonahydrate, terephthalic acid and hydrofluoric acid to the graphene oxide aqueous solution, and washing the composite material with N,N-dimethylformamide. USE - The method is useful for preparing metal organic framework-graphene oxide composite material (claimed). DETAILED DESCRIPTION - Preparing metal organic framework-graphene oxide composite material comprises mixing concentrated sulfuric acid and mixture of sodium nitrate and potassium permanganate, then adding water, hydrogen peroxide, manganese dioxide and graphite, then filtering, washing the mixture with water, centrifuging the mixture, then spray-drying to obtain graphite solid powder, dispersing graphite solid powder in water, ultrasonically treating the dispersed mixture to obtain a graphene oxide aqueous solution, adding chromium(III) nitrate nonahydrate, terephthalic acid and hydrofluoric acid to the graphene oxide aqueous solution, reacting at 210-230 degrees C for 67-77 hours to obtain a composite material of GrO MIL-53 (RTM: Graphene oxide), and washing the composite material with N,N-dimethylformamide, then soaking, drying, activating, and purifying.