Heteropolyacid/reduced graphene oxide/polypyrrole composite material as well as preparation method and application thereof

The invention relates to the technical field of microbial fuel cells, and particularly discloses a heteropolyacid/reduced graphene oxide/polypyrrole composite material as well as a preparation methodand application thereof. The preparation method comprises the following steps of mixing a graphene oxide suspension with a heteropolyacid solution, adding isopropanol, and carrying out a photocatalytic reaction to prepare a heteropolyacid/reduced graphene oxide suspension; and mixing the pyrrole prepolymerization solution with the heteropolyacid/reduced graphene oxide suspension, and stirring to react to prepare a suspension of the heteropolyacid/reduced graphene oxide/polypyrrole composite material. The preparation method provided by the invention is simple in process, low in energy consumption and low in cost, is convenient to operate and is safe and environment-friendly, the obtained composite material has a high specific surface area, high biocatalysis, high conductivity and good biocompatibility, and the elec