▎ 摘　　要

NOVELTY - The preparation of graphene using low-boiling-point organic solvent involves dispersing 1-500 g natural flake graphite in 1-1000 ml solvent, ultrasonically processing at ultrasonic power of 10-1000 W for 1-20 hours using ultrasonic instrument, filtering mixture and washing with methanol and drying, pretreating graphite, dispersing 1-500 g pretreated graphite in 1-500 ml low-boiling point solvent, ultrasonically processing for 1-100 hours to obtain a solution, carrying out centrifugation of the solution at 10-2000 rpm, extracting upper liquid, filtering, and drying. USE - Preparation of graphene using low-boiling point organic solvent (claimed). ADVANTAGE - The method ensures preparation of graphene by simple operation, improves graphene yield, and provides a new approach for preparing graphene/polymer-based composite materials.