▎ 摘　　要

NOVELTY - Preparation of fluorinated graphene involves adding 1-5 pts. wt. solid graphene oxide into 10-50 pts. wt. pure water, ultrasonically processing for 20-50 minutes, obtaining uniform graphene oxide dispersion, adding the resultant dispersion into a hydrothermal reactor lined with a polytetrafluoroethylene, adding 30-65 pts. wt. fluorinating agent, sealing the reactor, placing the reactor in an oven, reacting at 120-200 degrees C for 18-30 hours, naturally cooling the resultant product to room temperature, filtering, washing the resultant filter cake with pure water, and drying. USE - Preparation of fluorinated graphene (claimed). ADVANTAGE - The method enables efficient and safe preparation of fluorinated graphene by simple process with reduced energy consumption. DETAILED DESCRIPTION - Preparation of fluorinated graphene involves adding 1-5 pts. wt. solid graphene oxide into 10-50 pts. wt. pure water, ultrasonically processing for 20-50 minutes, obtaining uniform graphene oxide dispersion, adding the resultant dispersion into a hydrothermal reactor lined with a polytetrafluoroethylene, adding 30-65 pts. wt. fluorinating agent, sealing the reactor, placing the reactor in an oven, reacting at 120-200 degrees C for 18-30 hours, naturally cooling the resultant product to room temperature, filtering, washing the resultant filter cake several times with pure water until pH value becomes neutral, and drying.