Synthesis and characterization of one-dimensional magnetic photocatalytic CNTs/Fe3O4-ZnO nanohybrids

► Bifunctional CNTs/Fe3O4-ZnO nanohybrids are synthesized by one-pot polyol process. ► The nanohybrids display superparamagnetic behavior. ► The nanohybrids display high photocatalytic activity under UV-light irradiation. ► The nanohybrids are recycled magnetically and maintain high photocatalytic activity.