Figure 5From: Photocatalytic activity of Cr-doped TiO2 nanoparticles deposited on porous multicrystalline silicon filmsAB discoloration, evolution of AB degradation, and variation of rate constant. (a) Discoloration of amido black (AB) with TiO2:Cr/PS. (b) Evolution of the AB degradation as a function of UV light irradiation time for TiO2:Cr/PS films having different Cr concentrations; (c) Kinetic constant related to the discoloration of AB versus Cr concentration.Back to article page