▎ 摘　　要

NOVELTY - Tourmaline/graft modified sulfur containing graphene oxide composite absorbing material comprises 1-25 %mass tourmaline, 5-70 %mass graphene oxide and 5-94 %mass sodium polysulfide. USE - The composite absorbing material is useful for absorbing heavy metal ion, organic matter and activated carbon. ADVANTAGE - The composite absorbing material has improved physical and chemical properties, and high specific surface area. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for method for preparing the composite absorbing material, which involves adding 1 l water-alcohol solution to 0.5-7 g graphene oxide, ultrasonically dispersing the obtained mixture for 3 hours to obtain oxidized graphene suspension, adding ethanol to the obtained suspension in a ratio of 1:1, adding the obtained mixture in a reactor, adding 0.1-2.5 g tourmaline powder to the reactor, stirring and performing low-heat reflux reaction for 2 hours, adding sodium sulfide (Na2Sx) in the reactor, dripping 1 l formic acid solution in the reactor for 10-20 minutes, stirring and reacting for 2 hours, filtering the obtained mixture, cleaning and drying the obtained product, and grinding to obtain absorbing material.