▎ 摘　　要

NOVELTY - Preparing three-dimensional composite material catalyst involves adding sulfide nanomaterial into dehydrated alcohol, stirring, dissolving to obtain sulfide solution, soaking the three-dimensional structure base material in the obtained sulfide solution, taking out after the immersion is completed, drying to obtain a three-dimensional composite material loaded with sulfide, adding graphene oxide to dehydrated alcohol, stirring to obtain graphene oxide alcohol solution, soaking the obtained sulfide-loaded three-dimensional composite material in the obtained graphene oxide alcohol solution after the soaking is completed, taking out the catalyst, and drying to obtain a three-dimensional composite material catalyst. USE - Method for preparing three-dimensional composite material catalyst used for processing organic pollutant wastewater (claimed). ADVANTAGE - The method enables to prepare three-dimensional composite material catalyst with excellent recycling property, stability and high adsorption property, and cost-effective manner. DESCRIPTION OF DRAWING(S) - The drawing shows a scanning electron microscope image of the prepared three-dimensional composite material catalyst.