▎ 摘　　要

NOVELTY - Preparing chiral polyaniline-reducing graphene oxide aerogel wave-absorbing micro-sphere with spiral structure comprises (i) dissolving calcium chloride and ammonium persulfate in solvent, mixing uniformly to obtain coagulating bath solution, (ii) adding aniline in the graphene oxide dispersion liquid, fully stirring and mixing uniformly, where the mol ratio of graphene oxide to aniline is 0.5-3:1, the mol ratio of ammonium persulfate to aniline is 1-1.5:1, (iii) adding the sulfonic acid camphor into the mixed solution obtained in the step (ii), fully mixing to obtain the spinning solution, where the concentration of the sulfonic acid camphor in the spinning solution is 0.8-1.2 mol/l, (iv) taking the coagulation bath solution obtained in the step (i) as the collector of the droplet, obtaining the graphene hydrogel microsphere by wet spinning, (v) allowing to stand the graphene hydrogel microsphere obtained in the step (iv), reducing, and (vi) cleaning, freezing and drying. USE - The micro-sphere is useful as microwave absorbers (claimed). ADVANTAGE - The method: is simple, and is convenient to operate. The micro-sphere has excellent microwave absorption performance.