▎ 摘　　要

NOVELTY - Graphite oxide and a metal salt are dispersed in glycol solution after dissolving metal salt solution in polyethylene glycol and anhydrous sodium acetate. Graphite oxide solution and metal salt solution are mixed. The metal salt is cobalt salt, nickel salt, or iron salt. The reaction liquid is added into a reaction kettle, the temperature is raised to 180-220 degrees C, reacted for 8-16 hours, cooled to room temperature, collected by magnet, washed using deionized water and absolute ethyl alcohol, and dried. USE - Manufacture of cobalt ferrite/graphene magnetic nano composite powder. ADVANTAGE - The cobalt ferrite/graphene magnetic nano composite powder is easily manufactured with favorable dispersibility and high magnetization intensity. DETAILED DESCRIPTION - Graphite oxide and a metal salt in mass ratio of 1:1-1:10 are dispersed in glycol solution after dissolving metal salt solution in polyethylene glycol and anhydrous sodium acetate. Graphite oxide solution and metal salt solution are mixed. The metal salt is cobalt salt, nickel salt, or iron salt. The molar ratio of cobalt ion and nickel ion is 4:1-1:4. The molar ratio of cobalt ion and nickel, with respect to iron ion is 1:2. The reaction liquid is added into a reaction kettle, the temperature is raised to 180-220 degrees C, reacted for 8-16 hours, cooled to room temperature, collected by magnet, washed using deionized water and absolute ethyl alcohol, and dried.