A conductive copolymer of graphene oxide/poly(1-(3-aminopropyl)pyrrole) and the adsorption of metal ions

Graphene oxide (GO) was covalently functionalized by a 1-(3-aminopropyl)pyrrole monomer by an esterification reaction between carboxyl and amino groups. In addition, a GO/poly(1-(3-aminopropyl)pyrrole) copolymer material was prepared by an in situ polymerization. The composite was characterized using several measurements to demonstrate that the polymer monomer was successfully grafted on the surface of GO. The poly(GO–APP) copolymer was a conductive material. The swelling of poly(GO–APP) and the adsorption of metal ions were investigated by both experiments and theoretic fitting, which showed that the poly(GO–APP) had enhanced swelling and adsorption properties.