Development of Ir and La-codoped BaTa2O6 photocatalysts using visible light up to 640 nm as an H2-evolving photocatalyst for Z-schematic water splitting

Ir and La-codoped BaTa2O6 was developed as a novel photocatalyst for H2 evolution utilizing visible light up to 640 nm. The Ir and La-codoped BaTa2O6 with a Ru cocatalyst functioned as an H2-evolving photocatalyst for Z-schematic water splitting under visible light irradiation upon combination with a BiVO4 O2-evolving photocatalyst and a [Co(bpy)3]3+/2+ electron mediator.