Effect of Gold Dispersion on the Photocatalytic Activity of Mesoporous Titania for the Vapor-Phase Oxidation of Acetone

Figure 6

Diffuse reflectance UV-Vis spectra of (a) hydrothermally prepared Au/TiO₂ and TiO₂ samples: (a) H2, (b) H3, (c) H4, (d) H6, and (e) T1, and (b) impregnation-prepared Au/TiO₂ samples: (a) I1, (b) I2, and (c) I3.

(a)

(b)