▎ 摘　　要

NOVELTY - Preparing multifunctional graphene aerogel comprises (i) preparing graphene oxide solution having concentration of less than 10 mg/ml, (ii) adding titanium dioxide nanotubes into graphene oxide dispersion, stirring, and then ultrasonically dispersing using ultrasonic cell disrupter to obtain mixed solution, (iii) placing mixed solution in reactor and carrying out hydrothermal self-assembly reaction by composite hydrogel, and (iv) placing columnar hydrogel into liquid nitrogen frozen stereotypes and freeze-drying to obtain multi-functional graphene aerogel material. USE - The graphene aerogel is useful in preparing supercapacitor; as adsorbent for adsorption of bisphenol A (all claimed). ADVANTAGE - The graphene aerogel has simple preparation method, strong operability, low energy consumption and high specific surface area.