▎ 摘　　要

NOVELTY - Preparation of carbon fiber composite graphene aerogel comprises mixing carbon fiber, surfactant, graphene oxide, reducing agent and water to form mixed liquid; stirring and foaming; reacting at 65-100 degrees C for 2-12 hours, cooling to 15-35 degrees C to obtain carbon fiber composite graphene hydrogel; freezing hydrogel at - 10 degrees C to - 60 degrees C, drying at normal pressure, and annealing at 450-1000 degrees C. USE - The method is for preparing carbon fiber composite graphene aerogel used for oil-water separation oil-water separation (claimed). ADVANTAGE - The aerogel has high elasticity and hydrophobic properties.