Cerium boosts visible light absorption of titanium dioxide.

Researchers from the Chinese Academy of Sciences have improved visible light absorption in Ce/TiO2 by doping cerium in the TiO2 lattice, resulting in a high photocurrent density and better separation efficiency of photogenerated electrons and holes. The study presents a practical strategy for developing efficient visible light-activated rare earth-doped photocatalysts. Ce doping into the TiO2 lattice improved the separation efficiency of photogenerated electrons and holes, resulting in high photocurrent density and incident photon current efficiency (IPCE).