▎ 摘　　要

NOVELTY - The method involves placing nano- graphene of a graphene- magnetic core structure in a processing chamber to make a processing gas flow into the processing chamber. Treatment gas is excited by using a plasma excitation source to form a plasma. Nano particles are exposed to plasma environment. Oxidation modification process is performed on the nano particle to obtain a nano particle-processed graphene magnet core structure. A crude product is mixed with aqueous solution. Non-magnetically free graphene is removed to oxidized modified nano- graphene of a magnetic core structure. USE - Plasma oxidation graphene magnetic core structure nano-particle preparing and purifying method. ADVANTAGE - The method enables realizing simple purifying process of the nano particle-processed graphene magnet core structure. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a nano particle-processed graphene magnet core structure. (Drawing includes non-English language text).