Efficient visible-light-responsive photocatalyst: Hybrid TiO2-Ag3PO4 nanorods

Abstract Herein, ordered TiO 2 -Ag 3 PO 4 nanorods are fabricated by loading Ag 3 PO 4 nanoparticles on the as-prepared brookite TiO 2 nanorods. The amount of Ag 3 PO 4 nanoparticles loaded on brookite TiO 2 nanorods can be rationally optimized. These hybrid TiO 2 -Ag 3 PO 4 nanorods could provide large surface area, extend the visible light absorption and facilitate the charge separation, leading to efficient visible-light-driven photocatalytic performance. When evaluated as photocatalysts under visible light illumination, all the hybrid TiO 2 -Ag 3 PO 4 nanorods exhibit high photocatalytic activity for degrading 2-propanol. Particularly, TiO 2 -Ag 3 PO 4 -3 enables the best photocatalytic property, which yields high acetone production of 147 ppm at 3 h and CO 2 production of 424 ppm at 11 h.