▎ 摘　　要

NOVELTY - Catalyst comprising graphene as carrier and palladium or iron as active component, is new. The catalyst is prepared by (a) dispersing graphite oxide in water, (b) adding iron(III) chloride hexahydrate and then dissolving in water and stirring, (c) dissolving palladium chloride in diluted hydrochloride solution and then stirring, (d) adjusting a pH value of alkaline solution to 8-10, and (e) adding stirred mixture with water to stir and cool, dissolving the sodium borohydride in water, adding obtained sodium borohydride solution and obtained graphene oxide solution and then reacting. USE - The catalyst is useful for removing halogenated organic compound from wastewater (claimed). ADVANTAGE - The catalyst can be simply prepared with excellent catalytic property and long-term stability. DETAILED DESCRIPTION - Catalyst comprising graphene as carrier and 1-3% of palladium or iron as active component, is new. The catalyst is prepared by (a) dispersing graphite oxide in deionized water and then sonicating to obtain graphene oxide solution, (b) adding iron(III) chloride hexahydrate and then dissolving in deionized water and uniformly stirring, (c) dissolving palladium chloride in diluted hydrochloride solution and then stirring, (d) gradually adding alkaline solution to adjust a pH value to 8-10, (e) adding the stirred mixture with proper amount of deionized water and then stirring at pH value of 9 and cooling, dissolving the sodium borohydride in water to obtain sodium borohydride solution, adding the sodium borohydride solution and obtained graphene oxide solution and then reacting to obtain reaction solution, and (f) filtering the reaction solution to obtain filtrate, and washing the filtrate and then drying in a drying box.