▎ 摘 要
NOVELTY - Water-soluble graphene is prepared by oxidizing graphite, adding Coomassie brilliant blue (RTM: Triphenylmethane dye), reacting under ultrasonic wave, adding reducing agent, and reacting to obtain the water-soluble graphene. USE - Method for preparing water-soluble graphene (claimed). ADVANTAGE - The method is capable of providing water-soluble graphene having a dissolving degree of 1-1.5 mg/mL and a conductivity of 1-2 S/m, and which does not form deposition for 3-6 months.