▎ 摘　　要

NOVELTY - The present invention relates to a method for preparing a transparent solution of lipophilic graphene quantum dots, which comprises the first steps of stirring the graphite powder; the second step of separating the graphene powder; and the third step of drying the water-containing graphene powder obtained in the second step. operation to obtain powdered graphene; step 4, synthesis, the powdered graphene obtained after step 3 is added into deionized water, and then fully mixed by an oscillating instrument and placed in a hydrothermal reactor for double-layer graphene powder The transparent colloid on the surface of the body is synthesized, taken out and then subjected to solid-liquid separation by a centrifuge, so that an aqueous solution of graphene quantum dots can be obtained; step 5, add the aqueous solution of graphene quantum dots after step 4 to a phase transfer agent; step 6, finally After cooling at room temperature, a transparent solution of lipophilic graphene quantum dots can be obtained.