Sonochemical Synthesis, Characterization, and Photocatalytic Activity of N-Doped TiO₂ Nanocrystals with Mesoporous Structure

Figure 2

FESEM image and EDS mapping of the NT2 sample: (a) the panoramic FESEM image; (b) O-mapping; (c) N-mapping; (d) Ti-mapping.

(a)

(b)

(c)

(d)