▎ 摘　　要

NOVELTY - Preparation of three-dimensional graphene oxide film ball modified organic composite ultra/microfiltration membrane involves mixing 60-95 wt.% ethanol and water, adding 2-50 mg graphene oxide powder, adjusting pH to 8-9, adding 0.5-5 mg tetraethyl orthosilicate, ultrasonic treating, storing, centrifuging, washing, vacuum freeze-drying for 24 hours, mixing 0.1-1 wt.% graphene oxide particles to 70-80 wt.% organic solvent, ultrasonic treating, adding 1-5 wt.% polymer additives, mixing at 70 degrees C, dissolving, standing, defoaming for 10-15 hours, precipitating, and placing on clean glass plate. USE - Method for preparing three-dimensional graphene oxide film ball modified organic composite ultra/microfiltration membrane (claimed). ADVANTAGE - The material is non-polluting, high-strength, environment-friendly, and suitable for drinking water, food, and medicine. DETAILED DESCRIPTION - Preparation of three-dimensional graphene oxide film ball modified organic composite ultra/microfiltration membrane comprises mixing 60-95 wt.% ethanol and water, adding 2-50 mg graphene oxide powder, adjusting pH to 8-9, adding 0.5-5 mg tetraethyl orthosilicate, ultrasonic treating, storing, centrifuging, washing, vacuum freeze-drying for 24 hours, mixing 0.1-1 wt.% graphene oxide particles to 70-80 wt.% organic solvent, ultrasonic treating, adding 1-5 wt.% polymer additives, mixing at 70 degrees C, dissolving, standing, defoaming for 10-15 hours, precipitating, placing on clean glass plate, scraping, and soaking in deionized water for 24 hours.