▎ 摘　　要

NOVELTY - Modified starch/graphene oxide magnetic composite microsphere comprises 30-60 pts. graphene oxide suspension, 31-62 pts. gelatinized corn starch solution, 2-4 pts. acrylamide, 10.2-10.4 pts. magnestic ferric oxide suspension, 10.3-10.6 pts. epichlorohydrin solution, 150-300 pts. castor oil, 5.6-11.2 pts. emulsifier Span-80 (RTM: Sorbitan monooleate) and 0.4-0.8 pts. emulsifier Tween-80 (RTM: Polysorbate 80). USE - Used as modified starch/graphene oxide magnetic composite microsphere. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing modified starch/graphene oxide magnetic composite microsphere, comprising mixing gelatinized corn starch solution and magnestic ferric oxide suspension uniformly, ultrasonicating for 30 minutes and then mixing with acrylamide as an aqueous phase system, dropwise adding castor oil, Span-80 (RTM: Sorbitan monooleate) and Tween-80 (RTM: Polysorbate 80) consisting oil phase, stirring for 1 hour, and then adding epichlorohydrin, mixing, reacting and incubating for 3 hours with 30% sodium hydroxide solution, breaking the emulsion, centrifuging the mixing system, respectively, washing the precipitate with acetone, washing with ethanol 3-5 times, vacuum drying to 60 degrees C for 8 hours.