▎ 摘　　要

NOVELTY - Preparing graphene-hollow nano ferroferric oxidepolyaniline composite material comprises (i) adding graphite powder and sodium persulfate, stirring, diluting, washing, filtering, drying, adding potassium permanganate, and ultrasonically processing, (ii) heating, reacting, controlling, adding distilled water and hydrogen peroxide, washing and dialyzing, (iii) adding ethylene glycol, dispersing, dissolving, stirring, heating, insulating, centrifugal separating, washing, ultrasonically dispersing, dissolving, dropping, filtering, washing and vacuum drying. USE - The method is useful for preparing graphene-hollow nano ferroferric oxidepolyaniline composite material (claimed). DETAILED DESCRIPTION - Preparing graphene -hollow nano ferroferric oxidepolyaniline composite material comprises (i) adding 2.0-4.0 g graphite powder and 2.0-3.5 g sodium persulfate to 10-16 ml concentrated sulfuric acid, stirring at 80 degrees C for 9 hours, diluting with 150-250 ml of distilled water, washing, filtering, drying, adding 100-150 ml concentrated sulfuric acid into the oxidized graphite, stirring, slowly adding 20.0-40.0 g potassium permanganate under the ice water bath condition, stirring for 0.5-1 hours, and ultrasonically processing for 0.5 hours, (ii) heating pre oxidized graphite at 35 degrees C, reacting for 2 hours, slowly adding 200 ml distilled water in the system, reacting for 2 hours, controlling the temperature not more than 50 degrees C, adding 150-250 ml distilled water and 10-40 ml hydrogen peroxide, where mass fraction is 30% to stop the reaction, washing and dialyzing for 5-7 days, (iii) adding 0.010-0.015 g graphite oxide at 60 ml ethylene glycol in ultrasonically dispersion, uniformly dispersing, adding 0.42-1.68 g mixture iron(III) chloride and iron(III) chloride and 0.62-2.49 g polyvinyl pyrrolidone, dissolving in 70 ml ethylene glycol, stirring to form clear solution, adding 100 ml of the obtained solution into reaction kettle, heating to 200-230 degrees C, and insulating for 10-15 hours, centrifugal separating to obtain black powder with absolute ethyl alcohol and washing for 3 times with de-ionized water, vacuum drying at 50-70 degrees C for 24 hours to obtain the product A. adding product A 0.8-1.2 g aniline monomer and 10.65 g sodium dodecyl benzene sulfonate solution, ultrasonically dispersing for 30-60 minutes, forming homogeneous system B, adding 1.96-2.94 g ammonium persulfate initiator, dissolving with 50-100 ml distilled water, slowly dropping to the system B, stirring and reacting for 12 hours, filtering, washing till the filtrate is colorless and vacuum drying at 50-70 degrees C for 24-36 hours.