▎ 摘　　要

NOVELTY - Preparation of magnetic graphene oxide sorbent includes weighing 1-2 pts. wt. ferric oxide hexahydrate with 0.05 g/mL ethylene glycol, stirring, adding 10 pts. wt. aqueous ammonia dropwise, adding 0.05-0.3 pt. wt. polyvinylpyrrolidone, placing in PTFE lined autoclave, heating at 160-190 degrees C for 15-24 hours, cooling to room temperature, filtering, washing with water and ethanol 3 times, freeze-drying, crushing to obtain powder A, mixing 0.1-0.5 pt. wt. glacial acetic acid and 60-70 pts. wt. solvent and adding 0.5-2 pts. wt. condensing agent, polypeptide and basic catalyst. USE - Method for preparing magnetic graphene oxide sorbent (claimed). ADVANTAGE - The method is simple, convenient to perform and environmental-friendly. DETAILED DESCRIPTION - Preparation of magnetic graphene oxide sorbent involves weighing 1-2 pts. wt. ferric oxide hexahydrate with 0.05 g/mL ethylene glycol, stirring, adding 10 pts. wt. aqueous ammonia dropwise, adding 0.05-0.3 pt. wt. polyvinylpyrrolidone, placing in PTFE lined autoclave, heating at 160-190 degrees C for 15-24 hours, cooling to room temperature, filtering, washing with water and ethanol 3 times, freeze-drying, crushing to obtain powder A, mixing 0.1-0.5 pt. wt. glacial acetic acid and 60-70 pts. wt. solvent, adding 0.5-2 pts. wt. condensing agent, 0.1-1 pt. wt. polypeptide and basic catalyst, stirring to room temperature, adding 0.05-0.2 pt. wt. graphene oxide powder, stirring at 3000 revolutions/minute at room temperature for 24 hours, filtering, washing with water and ethanol for three times, freeze-drying and crushing to obtain powder B, mixing powders A and B, dissolving in 5-30 pts. wt. anhydrous ethanol for 50-60 minutes, performing magnetic separation, freeze-drying and crushing.