Dawson type polyacid-based metal-BBPTZ organic framework material as well as preparation method and application of Dawson type polyacid-based metal-BBPTZ organic framework material

The invention belongs to the technical field of metal organic framework materials, and provides a Dawson type polyacid-based metal-BBPTZ organic framework material as well as a preparation method and application thereof in order to solve the problem that the catalytic activity is reduced due to the fact that active sites of polyacid are easily covered in a polyacid-based metal organic framework material. The molecular formula of the material is [H2BBPTZ] 2Co (BBPTZ) 2 [P2W18O62]. 3H2O, the material has a monoclinic system and a C2/c space group, and the basic unit comprises a [P2W18O62] 6-polyanion, a Co (II) cation, two protonated BBPTZ ligands and three crystal water molecules; AND the process is simple, high-quality single crystals are easy to obtain, structural analysis is simple, convenient and feasible, materials are easy to repeat, and the yield is high. The crystal structure is stable, the catalyst is a heterogeneous catalyst, synergistic catalysis is realized, and a composite functional catalyst of '