Research Article
One-Step Cohydrothermal Synthesis of Nitrogen-Doped Titanium Oxide Nanotubes with Enhanced Visible Light Photocatalytic Activity
Figure 3
XRD patterns of P25 and sample TC-1 calcined at various temperatures; (a) as-prepared, (b) 200°C, (c) 300°C, and (d) 400°C.