Methylene Blue Photodegradation under Visible Irradiation on Ag-Doped ZnO Thin Films

Figure 4

(a) HRXPS Zn 2p spectrum for both ZnO and ZnO:Ag (5%) thin films and (b) HRXPS Ag 3d spectrum for ZnO:Ag (5%) thin films. All binding energies of the XPS spectra are calibrated with reference to the C1s peak at 285 eV.

(a)

(b)