Other photocatalytic materials
Photocatalysis : from nanostructured materials to photocatalytic reactors

Interest in photocatalytic materials active under irradiation in the visible range continues to grow, and current research is focused on the development of new semiconductors. Such a semiconductor must meet certain criteria that can be deduced from the photocatalytic mechanism described above:

• to absorb in the visible (λ = 400 - 800 nm), the energy value E _g of its band gap must be between 1.6 and 3.1 eV ;

• the position of the valence (E _BV ) and conduction (E _BC ) bands should enable reduction or oxidation reactions to take place in a large number of molecules; the feasibility of redox half-reactions will depend on the values of E _BC and E...