▎ 摘　　要

NOVELTY - A graphene oxide powder and deionized water are prepared into aqueous solution with concentration of 0.1-10 mg/ml, and ultrasonically vibrated for 0.1-5 hours, to obtain dispersed graphene oxide aqueous solution. 10-500 ml Obtained solution is provided into the hydrothermal kettle at 90-200 degrees C for 1-24 hours, to obtain graphene oxide hydrogel. The obtained graphene hydrogel is prepared in aqueous ammonia at 0-150 degrees C, soaked for 1-36 hours, frozen and dried, to obtain graphene oxide aerogel. USE - Preparation of graphene oxide hydrogel (claimed). ADVANTAGE - The graphene oxide hydrogel is efficiently prepared with improved mechanical strength, and reduced energy consumption without polluting the environment, by simple method.