Heterogeneous water oxidation photocatalysis based on periodic mesoporous organosilica immobilizing a tris(2,2'-bipyridine)ruthenium sensitizer.

ABSTRACT: A periodic mesoporous organosilica (PMO) containing 2,2'-bipyridine groups (BPy-PMO) has been shown to possess a unique pore wall structure in which the 2,2'-bipyridine groups are densely and regularly packed. The surface 2,2'-bipyridine groups can function as chelating ligands for the formation of metal complexes, thus generating molecularly-defined catalytic sites that are exposed on the surface of the material. We here report the construction of a heterogeneous water oxidation photocatalyst by immobilizing several types of tris(2,2'-bipyridine)ruthenium complexes on BPy-PMO where they function as photosensitizers in conjunction with iridium oxide as a catalyst. The Ru complexes produced on BPy-PMO in this work were composed of three bipyridine ligands, including the BPy in the PMO frame

SUBMITTER: Waki M 

PROVIDER: S-EPMC9051631 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature