Research Article

Mechanistic Study of Visible-Light-Induced Photodegradation of 4-Chlorophenol by TiO2−xNx with Low Nitrogen Concentration

Figure 2

Global XPS of TiO2−xNx (a), and the N 1s peak of TiO2−xNx around the 400 eV regions (b).
759306.fig.002a
(a)
759306.fig.002b
(b)