▎ 摘　　要

NOVELTY - Preparing modified graphene involves taking the graphene, adding to the ethanol solution, adding sodium hydroxide to adjust the pH value to 10 to obtain a mixed solution. The mixed solution is stirred and reacted, then filtered to obtain a filter residue, placed the filter residue into the dilute acid solution, reacted until the pH value of the solution is 7, washed with water, drained, and then dried the filter residue. The dried filter residue is pulverized to obtain a product. USE - Method for preparing modified graphene used for micro-nano processing, energy, biomedicine and drug delivery and to optical, electrical, mechanical, energy and heat conducting and conductive performance. ADVANTAGE - The method produces product which has good extreme pressure anti-wear property, thermal conductivity and conductivity.