▎ 摘　　要

NOVELTY - Graphene oxide and manganese oxide composite material preparation involves treating graphene oxide and manganese chloride with strong acid, dispersing in isopropanol, and then adding sodium lauryl sulfate under ultrasonic treatment for 5-10 minutes. The resulting mixture is heated by a reflux device at 70-90 degrees C. The graphene oxide and the manganese oxide are provided in a mass ratio of 1:3. The potassium permanganate dissolved in deionized water is subsequently added in the reaction mixture for 30-60 minutes, and then quickly cooled to room temperature. USE - Method for rapidly preparing composite material of graphene oxide and manganese oxide. ADVANTAGE - The method rapidly prepares the composite material of graphene oxide and manganese oxide in a simple, cost-effective and eco-friendly manner.