Highly Dispersed Ag2SO4 Nanoparticles Deposited on ZnO Nanoflakes as Photocatalysts

Abstract Highly dispersed silver sulfate nanoparticles deposited on ZnO nanoflakes (ASZ) were successfully prepared by a simple solvothermal method with different silver contents. The prepared 3ASZ composite shows improved photocatalytic activity for rhodamine B degradation under UV–vis light irradiation compared with pure ZnO, Ag 2 SO 4 , and commercial TiO 2 (P25). The remarkable photocatalytic activity for ASZ composite maybe due to the synergistic effects between photo-reduced Ag and SO 4 2− on the surface of ZnO nanoflakes, which promote efficient separation of electron–hole pairs. Graphical Abstract