▎ 摘　　要

NOVELTY - Preparation of graphene oxide metal/metal oxide nanoparticle modified hollow fiber ultrafiltration membrane comprises taking graphite oxide, metal/metal oxide nanoparticle and first solvent, ultrasonically dispersing to obtain dispersion liquid, taking high-molecularity polymer film material, pore-forming agent, second solvent and dispersion liquid, uniformly mixing to obtain casting film liquid, standing, defoaming for 24 hours, extruding by core spinning shower nozzle at 50-90 degrees C at distance of 5-100 mm and velocity of 0.5-5 m/minute and entering in coagulating bath for 3-20 seconds. USE - Method for preparing graphene oxide metal/metal oxide nanoparticle modified hollow fiber ultrafiltration membrane (claimed). ADVANTAGE - The ultrafiltration membrane has improved mechanical strength, water flux, retention rate, hydrophilicity, pollution resistance and useful life. The method is simple, easy to operate and strongly repeatable. DETAILED DESCRIPTION - Preparation of graphene oxide metal/metal oxide nanoparticle modified hollow fiber ultrafiltration membrane comprises taking 1 pt. wt. graphite oxide, 0.001-3 pts. wt. metal/metal oxide nanoparticle and 10-200 pts. wt. first solvent, ultrasonically dispersing to obtain dispersion liquid, taking 10-30 pts. wt. high-molecularity polymer film material, 5-30 pts. wt. pore-forming agent, 30-70 pts. wt. second solvent and 0.1-15 pts. wt. dispersion liquid, uniformly mixing to obtain casting film liquid, standing, defoaming for 24 hours, extruding by core spinning shower nozzle at 50-90 degrees C at distance of 5-100 mm and velocity of 0.5-5 m/minute and entering in coagulating bath for 3-20 seconds.