▎ 摘　　要

NOVELTY - Production of graphene-supported nano-nickel absorbing material involves dispersing e.g. freeze-dried surface-treated graphite oxide in ethylene glycol, obtaining dispersion (H1), dissolving e.g. nickel chloride ethylene glycol solution in ethylene glycol, obtaining dispersion (H2), mixing dispersion (H1) and dispersion (H2), reacting, centrifuging, vacuum-drying, dispersing vacuum-dried product and aniline monomer in dodecylbenzene sulfonic acid solution, obtaining monomer product, dissolving ammonium persulfate in distilled water, adding monomer product, and reacting. USE - Production of graphene-supported nano-nickel absorbing material (claimed). ADVANTAGE - The method enables production of graphene-supported nano-nickel absorbing material with excellent absorbing performance, by simple process. DETAILED DESCRIPTION - Production of graphene-supported nano-nickel absorbing material involves freeze-drying surface-treated graphite oxide at -10 degrees C to 30 degrees C, dispersing 1-2 g freeze-dried surface-treated graphite oxide and 1-10 g polyethylene oxide-polypropylene oxide-polyethylene oxide triblock copolymer in 500 ml ethylene glycol, obtaining homogeneous dispersion (H1), dissolving 20-40 ml nickel chloride ethylene glycol solution (0.1 mol/ml), 6-25 g polyvinylpyrrolidone and 10-50 g ammonium acetate in 500-1000 mL ethylene glycol, obtaining dispersion (H2), mixing dispersion (H1) and dispersion (H2), adjusting pH to 9-11 using aqueous ammonia, obtaining clear solution, adding 100 ml clear solution to a reactor, sealing the reactor, heating at rate of 2-4 degrees C/minute to 150 degrees C for 4 hours, further heating at rate of 3-6 degrees C/minute to 200 degrees C for 3 hours, cooling at rate of 5-7 degrees C/minute to 180 degrees C for 2 hours, heating at rate of 3-6 degrees C/minute to 200 degrees C for 7 hours, cooling reaction product at rate of 3-6 degrees C/minute to room temperature, centrifuging at 8000-10000 rpm for 10 minutes, washing 3 times with anhydrous ethanol and deionized water, vacuum-drying at 50-70 degrees C for 24 hours, adding 5 g vacuum-dried product and 5-10 g aniline monomer to a solution of dodecylbenzene sulfonic acid, ultrasonically dispersing for 65 minutes, obtaining monomer product, dissolving 3 g ammonium persulfate in 80-120 ml distilled water, slowly adding monomer product, reacting for 15 hours, filtering, washing with ethanol and distilled water, respectively until the filtrate is colorless, and vacuum-drying at 50-70 degrees C for 24-36 hours. The mass ratio of vacuum-dried product and dodecylbenzene sulfonic acid is 1-1.5:8-15. The surface-treated graphite oxide is prepared by adding graphite powder, potassium persulfate and phosphorus pentoxide to concentrated sulfuric acid, stirring obtained mixture has pH of 1.5 at 60 degrees C for 1-2 hours, heating at rate of 5 degrees C/minute to 80 degrees C for 2-4 hours, further heating at rate of 2 degrees C/minute to 87 degrees C for 1-2 hours, diluting resultant mixture with distilled water to pH of 3.6, filtering, drying at room temperature, adding dried mixture to concentrated nitric acid for 45-60 minutes, such that the pH value is 2-4, adding potassium permanganate (A), stirring at -8 degrees C for 30 minutes, cooling to -12 degrees C, adding potassium permanganate (B), stirring for 30 minutes, cooling to -15 degrees C, adding potassium permanganate (C), stirring for 20 minutes, adding obtained pre-oxidized graphite mixture to an incubator, reacting at 40 degrees C for 3 hours, adding distilled water (D1) in an amount consistent with the volume of the pre-oxidized graphite mixture, stirring at 40 degrees C for 2.5 hours, adding distilled water (D2) and hydrogen peroxide, reacting for 10-60 minutes, centrifuging reaction mixture at 9500 rpm for 10 minutes, washing resultant product with hydrochloric acid solution, dialyzing for 7-8 days, dissolving obtained graphite oxide in dimethyl sulfoxide, adding N-hydroxysuccinimide and self-made surface treatment agent at 35 degrees C for 2 hours, performing suction filtration of reaction product, washing, and drying. The mass ratio of potassium permanganate (A), potassium permanganate (B) and potassium permanganate (C) is 1:2:3. The content ratio of dried mixture and total addition amount of potassium permanganate is 1-2:10-15. The mass ratio of graphite powder, potassium persulfate, phosphorus pentoxide and concentrated sulfuric acid is 1-3:1-2:1-2:5-10. The mass ratio of dried mixture and concentrated nitric acid is 1-4:50-100. The amount of distilled water (D2) is 1-1.5 times of the amount of distilled water (D1). The volume ratio of distilled water (D2) and hydrogen peroxide is 4-20:1. The volume of hydrochloric acid solution is 10-50 times of the volume of product after centrifugation.