▎ 摘　　要

NOVELTY - Preparation of composite Fenton catalytic membrane involves (1) dissolving 50 mg single-layer graphene oxide nanosheets, 0.1-0.5 mmol iron salt, 1.8 g sodium acetate and 0.02 g sodium citrate in 40 mL ethylene glycol solvent, ultrasonically processing and magnetically stirring until uniform, forming ethylene glycol mixed solution, using solvothermal method to grow ferrosoferric oxide nanoparticles on the surface of graphene oxide nanosheets in situ, (2) naturally cooling to room temperature, using ethanol and deionized water to clean the obtained nano ferroferric oxide/graphene composite nano material, vacuum-drying at a temperature of 40 degrees C and pressure of -1 bar, (3) dispersing the nano ferroferric oxide/graphene composite nano material and palygorskite nanorods with a diameter of 20-40 nm in deionized water after drying in step (2), ultrasonically mixing, performing suction filtration onto microfiltration membrane, and self-assembling composite nano material and palygorskite. USE - Preparation of composite Fenton catalytic membrane for water treatment Fenton method to catalyze degradation of organic pollutants by hydrogen peroxide (claimed). ADVANTAGE - The method produces composite Fenton catalytic membrane with high catalytic efficiency and stable membrane flux. DETAILED DESCRIPTION - Preparation of composite Fenton catalytic membrane involves (1) dissolving 50 mg single-layer graphene oxide nanosheets, 0.1-0.5 mmol iron salt, 1.8 g sodium acetate and 0.02 g sodium citrate in 40 mL ethylene glycol solvent, ultrasonically processing and magnetically stirring until uniform, forming ethylene glycol mixed solution, using solvothermal method to grow ferrosoferric oxide nanoparticles on the surface of graphene oxide nanosheets in situ, (2) naturally cooling to room temperature, using ethanol and deionized water to clean the obtained nano ferroferric oxide/graphene composite nano material, vacuum-drying at a temperature of 40 degrees C and pressure of -1 bar, (3) dispersing the nano ferroferric oxide/graphene composite nano material and palygorskite nanorods with a diameter of 20-40 nm in deionized water after drying in step (2), ultrasonically mixing, performing suction filtration onto microfiltration membrane, and self-assembling composite nano material and palygorskite. In step (1), the added amount of the single-layer graphene oxide nanosheets, the iron salt, the sodium acetate, the sodium citrate and the ethylene glycol solvent is proportional to the increased dosage.