Sulfur-doping polyoxometallate-metal-organic intercalation compound with PPy coating as highly efficient photocatalyst for visible light degradation

A new sulfur-doping Keggin polyoxometalates (POMs) based metal organic intercalation compound (S-POM-MOIC) has been synthesized, namely, H[Ag(BPTD)2]2[PMo12O40] (BPTD = 2,5-bis(3-pyridyl)-1,3,4-thiadiazole). Single crystal X-ray analysis reveals that the Keggin-type POMs as a template embedded a 2D graphite-like intercalation framework, and all the sulfur atoms have been exposed into the inner cavity of empty channels. Which means the S-POM-MOIC framework can not only give full play to the catalytic ability of POMs, but also endow the synergistic catalytic effect of sulfur. Finally, we successfully obtained the visible light photocatalyst with excellent catalytic activity by using the ternary composite nanomaterials synthesis strategy.