▎ 摘　　要

NOVELTY - Synthesis of modified metal-organic framework composite involves carrying out Schiff alkali reaction, amidation reaction, ring-opening addition reaction of epoxy group, and grafting graphene oxide. The method involves adding zinc salt, copper salt, and manganese salt into ethanol, dissolving at 50 degrees C, obtaining inorganic ligand solution, dissolving 1H-imidazole-2-methylamine in dimethylformamide (DMF), obtaining organic ligand solution, uniformly mixing the inorganic ligand solution and organic ligand solution, transferring into a reaction kettle, heating, reacting, cooling, centrifuging, washing, drying to obtain MOFs material, ultrasonically dispersing graphene oxide into deionized water, adding MOFs material and catalyst, hydrothermally reacting obtaining graphene oxide modified MOFs suspension, adding potassium chromate solution, dripping bismuth acetate-hydrochloric acid solution, reacting, centrifuging, washing, and drying to obtain the product. USE - Synthesis of modified metal-organic framework composite for photocatalytic-organic matter degradation. ADVANTAGE - The material has a three-dimensional topological structure, high porosity, high stability, and high catalytic activity which enables efficient separation of photo-generated electron and hole. DETAILED DESCRIPTION - Synthesis of modified metal-organic framework composite involves carrying out Schiff alkali reaction, amidation reaction, ring-opening addition reaction of an epoxy group, and grafting graphene oxide. The method involves adding zinc salt, copper salt, and manganese salt into 75 vol.% ethanol solution, stirring, dissolving at 50 degrees C, obtaining inorganic ligand solution, dissolving 1H-imidazole-2-methylamine in dimethylformamide (DMF), obtaining organic ligand solution, uniformly mixing the inorganic ligand solution and organic ligand solution in the same volume ratio, transferring into a reaction kettle, heating to 80-150 degrees C, stirring, reacting for 12-36 hours, cooling to room temperature, centrifuging, washing, drying to obtain MOFs material, ultrasonically dispersing graphene oxide into deionized water, adding MOFs material and catalyst, hydrothermally reacting for 1-3 hours, obtaining graphene oxide modified MOFs suspension, adding 0.15-0.2 mol/L potassium chromate solution, dripping bismuth acetate-hydrochloric acid solution at 25 degrees C, stirring, reacting for 1-6 hours, centrifuging, washing, and drying to obtain the product.