Photoreduction of CO2 over the well-crystallized ordered mesoporous TiO2 with the confined space effect

Ordered mesoporous TiO2 not only shows a higher production efficienty of CH4, which is 71 times and 53 times higher than that of P25 and disordered mesoporous TiO2, but also exhibits a better photocatalytic stability. And we proved that the 13CH4 was generated by the reduction of 13CO2, and the CD4 was generated by the reforming of CO2 and D2O.254