Synthesis and Characterization of Structure-Controlled Micro-/Nanocomposite TiO₂ Fibers with Enhanced Photocatalytic Activity

Figure 7

XPS spectra of sample F4 after calcination at 500°C for 5 hours in air: (a) F 1s, (b) Ti 2p, (c) O 1s spectra, and (d) spectrum for all the elements in the fiber.

(a)

(b)

(c)

(d)