▎ 摘　　要

NOVELTY - Preparation of ferroferric oxide/graphene oxide magnetic nanocomposite material involves mixing raw material including ferrous gluconate and solvent including water, hydrothermally-reacting at 180-220 degrees C for 5-15 hours, centrifuging, washing and drying. USE - Preparation of ferroferric oxide/graphene oxide magnetic nanocomposite material (claimed). ADVANTAGE - The method enables simple, environmentally-friendly, rapid and economical preparation of ferroferric oxide/graphene oxide magnetic nanocomposite material without using additives including basic precipitant, oxidizing agent, catalyst and surfactant and need for surface modification of iron oxide materials.