▎ 摘　　要

NOVELTY - Natural graphite is reacted with strong oxidant, to obtain graphene oxide slurry. The obtained slurry is washed to neutral, dried, and graphene oxide solution having concentration of 0.005-0.01 g/mL is prepared. Then, surfactant is added to the obtained solution, magnetically stirred, mixed, reducing agent is added, reacted in an oil bath with magnetic stirring and filtered, to obtain modified graphene. Distilled water is added to the resultant product and ultrasonically-dispersed under power of 50-150 W for 2-6 hours, to obtain modified graphene aqueous dispersion. USE - Preparation of modified graphene aqueous dispersion (claimed). ADVANTAGE - The method enables simple, economical and easy preparation of modified graphene aqueous dispersion having high stability and dispersibility, with high yield.