Alkali hexatitanate photocatalysts with various morphologies for selective reduction of carbon dioxide with water

Among the prepared alkali–metal hexatitanate samples, the rod-like potassium hexatitanate (K₂Ti₆O₁₃) modified with Ag nanoparticles exhibited the highest activity for photocatalytic CO₂ reduction with a very high reaction selectivity to form CO (96%).