A silver-manganese dual co-catalyst for selective reduction of carbon dioxide into carbon monoxide over a potassium hexatitanate photocatalyst with water

A Ag–Mn dual co-catalyst deposited on a K₂Ti₆O₁₃ photocatalyst significantly enhances the photocatalytic CO₂ reduction into CO with an extremely high selectivity of 98% by using H₂O as an electron donor, owing to the properties of Ag and MnOₓ species for promoting CO and O₂ formation, respectively