▎ 摘　　要

NOVELTY - Nitrogen-sulfur co-doped graphene composite material loaded with a ternary efficient denitration sulfur-resistant catalyst comprises a novel modified nitrogen-sulfur co-doped graphene as a catalyst carrier, where the ternary manganese-cerium-tin oxide catalyst is grown in situ on the surface of the nitrogen-sulfur co-doped graphene. The composite material has high denitration rate and sulfur resistance. USE - As nitrogen-sulfur co-doped graphene composite material loaded with a ternary efficient denitration sulfur-resistant catalyst. ADVANTAGE - The composite material adopts overall synthesis in a low-temperature environment, rapid reaction, synthetic substance that does not cause pollution to the environment and the ternary catalyst uniformly and firmly loaded on the surface of the nitrogen-sulfur co-doped graphene due to the in-situ growth method and has no specific requirement on the reaction vessel, prolonged service life and high stripping rate. DETAILED DESCRIPTION - Nitrogen-sulfur co-doped graphene composite material loaded with a ternary efficient denitration sulfur-resistant catalyst comprises a novel modified nitrogen-sulfur co-doped graphene as a catalyst carrier, where the ternary manganese-cerium-tin oxide catalyst of formula: Mn-Ce-SnOx is grown in situ on the surface of the nitrogen-sulfur co-doped graphene. The composite material has high denitration rate and sulfur resistance. An INDEPENDENT CLAIM is included for a method for preparing the composite material involving (i) weighing 0.1 g nitrogen-doped graphene oxide, dissolving in 50 ml deionized water, preparing a nitrogen-doped graphene oxide solution, ultrasonically dispersing for 10 minutes, adding 0.06 g sodium dodecyl sulfate into the solution and ultrasonically reacting for 10 minutes, (ii) adding cerium(III) acetate to the solution obtained in step (i) and stirring at room temperature for 1 hour to complete dissolution, (iii) adding tin(IV) chloride to the solution obtained in step (ii), continuing to stir at room temperature for 1 hour until tin(IV) chloride is completely dissolved and (iv) adding a potassium permanganate solution to the solution obtained in step (iii), continuously reacting for 1 hour at room temperature, adding ammonium thiocyanate after the reaction, stirring to react for 4 hours, centrifugally washing the obtained suspension and performing vacuum freeze drying to obtain the composite material.