Enhanced Photocatalytic Activity of W-Doped and W-La-Codoped TiO₂ Nanomaterials under Simulated Sunlight

Figure 9

Kinetic linear simulation curves of MO photocatalytic decolorization over the different photocatalysts under simulated sunlight irradiation: (A) p25, (B) pure TiO₂, (C) 0.4% W/TiO₂, (D) 0.6% W/TiO₂, (E) 0.8% W/TiO₂, (F) 1.0% W/TiO₂, and (G) 1.2% W/TiO₂ in (a) and (A) 0.8% W/TiO₂, (B) 1% La/W/TiO₂, (C) 2% La/W/TiO₂, (D) 3% La/W/TiO₂, (E) 4% La/W/TiO₂, and (F) 5% La/W/TiO₂ in (b). and are the MO concentration when adsorption equilibrium is reached and at time , respectively.

(a)

(b)