▎ 摘　　要

NOVELTY - Preparing graphene oxide gel involves using saturated copper sulfate, dispersing the graphene oxide suspension ultrasonically and adding to the copper sulfate solution, taking out graphene oxide gel after refrigerated, where graphene oxide suspension is a graphene oxide aqueous suspension. The graphene oxide gel is washed with deionized water to obtain graphene oxide polymer gel by removing residual saturated copper sulfate. USE - Method for preparing graphene oxide gel to adsorb dyes (claimed). ADVANTAGE - The method enables to prepare graphene oxide gel that is fast and simple, is easy to mass-produce, and has great application potential in sewage treatment.