Anodic Titanium Oxide Layers Modified with Gold, Silver, and Copper Nanoparticles

Figure 6

UV-Vis spectra of methyl red solutions (0–5 mg L⁻¹) prepared in 0.01 M HCl (a). Calibration curve used for MR determination (b). Photocatalytic degradation of 5 mg L⁻¹ MR under 350 nm UV irradiation in the presence of ATO samples decorated with different nanoparticles. MR concentration (c) and ln(C) (d) vs. irradiation time curves.

(a)

(b)

(c)

(d)