▎ 摘　　要

NOVELTY - Catalyst is prepared by aminating reduced graphene oxide and 3,5-dibromo salicylaldehyde and subjecting to reaction in an ethanol system to synthesize 3,5-dibromo salicylaldehyde Schiff base and synthesizing Schiff base-copper complex by reacting copper acetate monohydrate with 3,5-dibromo salicylaldehyde Schiff base in ethanol system. USE - The catalyst is using for activating potassium persulfate to degrade chlorophenolic pollutants in aqueous solution (claimed). ADVANTAGE - The preparation method is simple, catalyst is activated by potassium persulfate under low energy consumption and mild conditions and is environmentally-friendly. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) use method of catalyst, comprising (a) taking catalyst and potassium persulfate separately in deionized water to obtain a solution, and (b) mixing catalyst solution, potassium persulfate solution and aqueous solution containing chlorophenol-based contaminants into deionized water to form reaction solution and reacting in dark and shaking conditions; and (2) preparing catalyst, comprising (i) amination reducing graphene oxide (TEPA-rGO) dispersed in absolute ethyl alcohol, (ii) dissolving 3,5-dibromo salicylaldehyde in absolute ethanol, adding dropwise to system of step (i), stirring, condensing and refluxing, heating to carry out reaction, cooling and performing suction filtration after completion of the reaction, drying filter cake and collecting to obtain an intermediate product, (iii) weighing intermediate product of step (iii) into anhydrous ethanol, and (iv) dissolving copper acetate monohydrate in absolute ethanol, stirring, refluxing, heating to carry out reaction, cooling after the reaction is finished, performing suction filtration, drying filter cake and collecting.