Photocatalytic reduction of CO2 with H2O: significant enhancement of the activity of Pt–TiO2 in CH4 formation by addition of MgO

Abstract

Photocatalytic activity in the reduction of CO(2) with H(2)O to CH(4) was significantly enhanced by simply adding MgO to TiO(2) loaded with Pt. A positive correlation between CH(4) formation activity and basicity was observed. The interface between TiO(2), Pt and MgO in the trinary nanocomposite played a crucial role in CO(2) photocatalytic reduction.