Enhanced photocatalytic activity of BiVO4 coupled with iron-based complexes for water oxidation under visible light irradiation

[Fe-2(TPA)(2)(mu-O)Cl-2](2+) (TPA = tris(2-pyridylmethyl)amine) was investigated as a pre-catalyst, and greatly enhanced the photocatalytic water oxidation activity of BiVO4. An extremely high oxygen yield of 99.1% and apparent quantum yield of 44.3% were obtained in the BiVO4-NaIO3 photocatalytic water oxidation system.