▎ 摘　　要

NOVELTY - Preparation of modified magnetic graphene oxide adsorbent material includes weighing 1-2 pts. wt. ferric chloride hexahydrate and 0.05 g/mL ethylene glycol, stirring, adding 0.05-0.2 pt. wt. graphene oxide, 1-10 pts. wt. ammonia and 0.05-0.3 pt. wt. polyvinylpyrrolidone dropwise, mixing to obtain homogeneous mixture, placing in PTFE lined autoclave, heating at 160-190 degrees C for 15-24 hours, cooling to room temperature, washing alternately with water and ethanol for three times, freeze-drying and crushing to obtain graphene oxide magnetic material. USE - Method for preparing modified magnetic graphene oxide adsorbent material (claimed). ADVANTAGE - The adsorbent material is environmental-friendly, convenient to perform and has simple preparation and high adsorption capacity. DETAILED DESCRIPTION - Preparation of modified magnetic graphene oxide adsorbent material involves weighing 1-2 pts. wt. ferric chloride hexahydrate and 0.05 g/mL ethylene glycol, stirring, adding 0.05-0.2 pt. wt. graphene oxide, 1-10 pts. wt. ammonia and 0.05-0.3 pt. wt. polyvinylpyrrolidone dropwise, mixing to obtain homogeneous mixture, placing in PTFE lined autoclave, heating at 160-190 degrees C for 15-24 hours, cooling to room temperature, washing alternately with water and ethanol for three times, freeze-drying, crushing to obtain graphene oxide magnetic material, placing 1 pt. wt. silane coupling agent, 2.5-10 pts. wt. absolute ethanol and 5-20 pts. wt. water into three-necked flask, adjusting pH to 4-5, stirring at 300 revolutions/minute (rpm) for 2 hours, adding 1.5-3 pts. wt. graphene oxide magnetic material, stirring at 300 rpm at room temperature for 4 hours, washing with absolute ethanol for three times, freeze-drying, crushing, mixing 0.5-1.5 pts. wt. citric acid powder in solvent, adding 0.5-2 pts. wt. polypeptide, 0.1-1 pt. wt. condensing agent and basic catalyst, stirring at room temperature, adding graphene oxide powder, stirring at 300 rpm for 24 hours, washing alternately with water and ethanol for three times, freeze-drying and crushing.