Three new hydroxyquinoline-coordinated ruthenium(ii) sensitizers bearing a polypyridyl derivative anchor (R1, R2 and R3) were synthesized that could tether to visible light sensitization over a Pt–TiO2 system for hydrogen production.
Interfacial oxygen vacancy layer of BCN–TiO2 heterostructures as an effective interfacial mediator can promotes the direct Z-scheme charge carrier transfer process and visible light photocatalytic activity for H2 evolution.