Research Article

Enhanced Visible Light Photocatalytic Activity of Cluster Modified N-Doped for Degradation of Toluene in Air

Figure 4

XPS spectra for N-doped TiO2 and N-TiO2/V2O5-0.5% samples of N1s (a), O1s (b), Ti2p, (c) and V2p (d).
569716.fig.004a
(a)
569716.fig.004b
(b)
569716.fig.004c
(c)
569716.fig.004d
(d)