Hydrophobic Polyoxometalate-Based Metal-Organic Framework for Efficient CO2 Photoconversion

A novel polyoxometalate (POM)-b as ed metal-organic framework, TBA(5)[(P2Mo16Mo8O71)-Mo-V-O-VI(OH)(9)Zn-8(L)(4)] (NNU-29), was in situ synthesized and applied into CO, photoreduction. The selection of porous material containing a reductive POM cluster is considered to be helpful for CO2 reduction; meanwhile, a hydrophobic-group-modified organic ligand enables NNU-29 to exhibit good chemical stability and restrains hydrogen generation to some extent. In the photocatalytic CO2 reduction, the yield of HCOO- reached 35.2 mu mol in the aqueous solution with selectivity of 97.9% after 16 h.