A bridge over troubled gaps'': up-conversion driven photocatalysis for hydrogen generation and pollutant degradation by near-infrared excitation

Spectral up-conversion (UC) has been attracting growing interest for the effective harvesting of the near-infrared (NIR) part of sunlight for photocatalytic hydrogen production and environmental purification. We present evidence of NIR-to-UV-VIS photon conversion for degradation of organic dyes and hydrogen and oxygen evolution via water-splitting by TiO2 and Rh-Cr oxide-loaded SrTiO3:Al photocatalysts, respectively.