Efficient Hydrogen Production by a Photoredox Cascade Catalyst Comprising Dual Photosensitizers and a Transparent Electron Mediator.

ABSTRACT: One-directional electron transport between a photocatalyst and redox mediator is crucial for achieving highly active Z-scheme water-splitting photocatalysis. Herein, a photoredox cascade catalyst that artificially mimics the electron transport chain in natural photosynthesis was synthesized from a Pt-TiO₂ nanoparticle catalyst, two photosensitizers (RuCP⁶ and RuP⁶), and a visible-light-transparent electron mediator (HCRu). During photocatalytic hydrogen evolution in the presence of a redox-reversible electron donor, [Co(bpy)₃]²⁺ (bpy = 2,2'-bipyridine), the HCRu-Zr-RuCP⁶-Zr-RuP⁶@Pt-TiO₂ (PRCC-1) photocatalyst exhibited the high

SUBMITTER: Yoshimura N 

PROVIDER: S-EPMC10038088 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature