PHOTOCATALYTIC CARBON DIOXIDE REDUCTION METHOD USING A COMPOSITE PHOTOCATALYST

摘要

The invention relates to a photocatalytic carbon dioxide reduction method carried out in liquid and/or gas phase under irradiation, using a photocatalyst containing a first semiconductor SC1, particles comprising one or more metallic-state elements M, and a second semiconductor SC2, wherein the method is carried out by contacting a feedstock containing the CO₂ and at least one sacrificial compound with the photocatalyst, then irradiating the photocatalyst such that the CO₂ is reduced, and oxidising the sacrificial compound in order to produce an effluent containing at least in part C1 or above carbon molecules other than CO₂.