▎ 摘　　要

NOVELTY - A sulfonated graphite/polypyrrole composite material is prepared by using natural graphite for preparing sulfonated graphene by chemical oxidization method; dispersing the sulfonated graphene in water, and adding pyrrole to obtain solution (A); dissolving ammonium persulfate in water to obtain aqueous solution of ammonium sulfate; adding the aqueous solution of ammonium sulfate in solution (A), and stirring and reacting for 12-36 hours; and filtering, washing, and vacuum drying. USE - Method for preparing sulfonated graphite/polypyrrole composite material used as silver ion adsorbent to absorb silver ion-containing wastewater (claimed). ADVANTAGE - The method is capable of providing sulfonated graphite/polypyrrole composite material having good absorption recovery performance to silver ions. DETAILED DESCRIPTION - Sulfonated graphite/polypyrrole composite material preparation comprises: (A) using natural graphite for preparing sulfonated graphene by chemical oxidization method; (B) dispersing the sulfonated graphene (0.5-1.5 mg/mL) in water, and adding pyrrole (0.05-0.2 mol/L) to obtain solution (A); (C) dissolving ammonium persulfate in water, a mole ratio of ammonium persulfate to pyrrole being 0.5:1-2:1, to obtain aqueous solution of ammonium sulfate; (D) adding the aqueous solution of ammonium sulfate in solution (A), and stirring and reacting for 12-36 hours; and (E) filtering, washing, vacuum drying, and obtaining sulfonated graphite/polypyrrole composite material.