Synthetic method and application of polyaniline/reduced graphene/TiO2 material

The invention discloses a synthetic method and application of a polyaniline/reduced graphene/TiO2 material. The method comprises the following steps: dispersing graphene into absolute ethyl alcohol for ultrasonic treatment, adding tetrabutyl titanate into dispersion liquid for ultrasonic treatment, then transferring the solution into a stainless steel autoclave for a reaction, and drying to obtaingraphene-TiO2; dissolving aniline into a hydrochloric acid solution, additionally dissolving sodium dodecyl benzene sulfonate, graphene-TiO2 and ammonium persulfate into the hydrochloric acid solution, then dropwise adding an aniline solution into an ammonium persulfate solution, filtering reaction liquid, and drying retention matters to obtain a polyaniline/graphene/TiO2 composite material; adding the polyaniline/graphene/TiO2 composite material into an ethanol solution of sodium borohydride, washing the retention matters with ethyl alcohol and deionized water until the water is colorless, and finally drying to obta