▎ 摘　　要

NOVELTY - Preparing nitrogen-sulfur co-doped graphene porous sheet embedded with iron carbide comprises (a) adding iron salt and sulfur source into deionized water, stirring uniformly, adding nitrogen source and ethyl alcohol, and stirring uniformly to obtain a suspension, where the mass ratio of iron salt to sulfur source and nitrogen source is (0.3-1):(0.2-2):(2-12), and the mass fraction of iron salt in the suspension is 3.75-12.5%, (b) evaporating the solvent in the suspension, and drying to obtain a precursor, (c) adding the precursor in a tubular furnace, heating to 500 degrees C at a rate of 2-5 degrees C/minute in the presence of nitrogen, and carbonizing for 2-4 hours, and (d) heating to 800 degrees C at the heating rate of 2-5 degrees C/minute in the presence of nitrogen, and carbonizing for 2-5 hours, cooling to room temperature, washing with acid, neutralizing, drying, and grinding. USE - The co-doped graphene porous sheet is useful for degrading organic pollutant in water (claimed). ADVANTAGE - The co-doped graphene sheet improves the recycling of carbon materials in the water bodies, reduces secondary pollution caused by metal leaching, and has excellent removal ability of organic pollutants in water.