Research Article
Facile Synthesis and Characterization of N-Doped TiO2 Photocatalyst and Its Visible-Light Activity for Photo-Oxidation of Ethylene
Figure 5
The XPS spectra for N-TiO2 samples, ((a) and (c)) N 1s and ((b) and (d)) Ti 2p.
| (a) |
| (b) |
| (c) |
| (d) |