Wide spectral response photothermal catalysis-fenton coupling systems with 3D hierarchical Fe3O4/Ag/Bi2MoO6 ternary hetero-superstructural magnetic microspheres for efficient high-toxic organic pollutants removal.

3D hierarchical Fe3O4/Ag/Bi2MoO6 magnetic microspheres are fabricated through hydrothermal-photoreduction strategy, which fabricate an advanced photocatalytic-Fenton coupling system. The H2O2 produced by photocatalysis could form the photo-Fenton system when combined with Fe3O4 under light illumination. The introduction of Ag nanoparticles could induce the localized surface plasmon resonance (LSPR), which provides "hot electrons" for promoting photocatalysis. The addition of Fe3O4 achieve the successful coupling of photocatalysis-Fenton, and enhanced the broad spectrum response of the final composite sample. The 3D hierarchical Fe3O4/Ag/Bi2MoO6 exhibit excellent UV-Vis-NIR-driven photocatalytic performance for mineralization of high-toxic Aatrex and Bisphenol A. The addition of magnetic Fe3O4 is conducive to the magnetic separation, which favors practical application. The strategy provides thought-provoking insights for constructing new types of high-performance photocatalytic system.