▎ 摘　　要

NOVELTY - Preparation of graphene/iron oxide/polyaniline composite material comprises ultrasonic dispersing aniline and sodium dodecyl sulfate in water, adding graphene oxide, mixing, ultrasonic dispersing for 10-15 minutes, stirring in ice-water bath, adding ammonium persulfate and hydrochloric acid, mixing for 10-20 hours, centrifugal washing, dispersing in hydrochloric acid, adding saturated ferric chloride solution, stirring for 1 hour, hydrothermal reacting at 180 degrees C for 12 hours, centrifugal washing, and freeze-drying. USE - Method for preparing graphene/iron oxide/polyaniline composite material (claimed). ADVANTAGE - The material is stable and has improved capacity and circulation performance. The preparation method is simple and inexpensive.