Photocatalytic decomposition of various organic compounds over WO3-supported ordered intermetallic PtPb co-catalysts

This study investigates the photocatalytic decomposition of acetic acid and its reaction mechanism over WO 3 -supported ordered intermetallic PtPb nanoparticle (NiAs-type structure, P63/mmc, a = 0.4259 nm; c = 0.5267 nm) (PtPb NPs/WO 3 ) co-catalysts under an oxygen-rich atmosphere and visible light. We rationally designed and synthesized the ordered intermetallic nanoparticle on WO 3 co-catalysts by a photodeposition and polyol method. Remarkably enhanced activities were observed for the synthesized PtPb NPs/WO 3 catalyst toward the decomposition of organic compounds compared to pure WO 3 and WO 3 -supported individual Pt co-catalysts.