Enhanced photocatalytic activity of a B₁₂-based catalyst co-photosensitized by TiO₂ and Ru(ii) towards dechlorination.

ABSTRACT: A novel hybrid photocatalyst denoted as B₁₂-TiO₂-Ru(ii) was prepared by co-immobilizing a B₁₂ derivative and trisbipyridine ruthenium (Ru(bpy)₃ ²⁺) on the surface of a mesoporous anatase TiO₂ microspheres and was characterized by DRS, XRD, SEM and BET et al. By using the hybrid photocatalyst, DDT was completely didechlorinated and a small part of tridechlorinated product was also detected in the presence of TEOA only after 30 min of visible light irradiation. Under simulated sunlight, the hybrid exhibited a significantly enhanced photocatalytic activity for dechlorination compared with B₁₂-TiO₂ under the same condition or itself under visible light irradiation due to the additivity in the contrib

SUBMITTER: Sun Y 

PROVIDER: S-EPMC9076874 | biostudies-literature | 2018 Jan

REPOSITORIES: biostudies-literature