▎ 摘　　要

NOVELTY - Method for preparing three-dimensional graphene gel composite material involves using graphite as raw material, the graphene oxide solution is prepared by the improved Hummers method; ii. weighing a certain amount of photo-Fenton catalyst and added to the solution in step (1), and ultrasonically treated at room temperature; iii. adding reducing substance to the mixed solution obtained in step (ii), and after ultrasonic treatment, it is transferred to a reaction kettle lined with polytetrafluoroethylene for reaction; iv. after cooling the reaction solution to room temperature, soaking it fully in deionized water, and then placing in a refrigerator for freezing treatment; and v. freeze-drying the sample obtained by freezing in step (iv.) in a vacuum freeze dryer. USE - Three-dimensional graphite gel composite material used as a catalyst for adsorption-photocatalytic Fenton catalytic degradation of multi-field coupling treatment of wastewater (claimed). ADVANTAGE - The three-dimensional graphene gel composite material exhibits a three-dimensional macroscopic structure and quickly restored to its original state after being compressed. The method has excellent adsorption performance of the three-dimensional graphene gel, but also realizes the adsorption enrichment-photocatalytic Fenton multi-field coupling synergistic degradation of organic pollutants, the excellent conductivity of the three-dimensional graphene accelerate the transmission of photo-generated charges, improve the photocatalytic Fenton catalytic degradation efficiency, and solves the problem that the catalyst is difficult to recycle. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a three-dimensional graphene gel composite material.