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

Figure 3

XPS spectra of the micro-/nanostructured TiO₂ fibers obtained from sample F4 after calcination at 500°C for 5 hours in a crucible covered with a cap: (a) F 1s, (b) Ti 2p, (c) O 1s spectra, and (d) spectrum of all elements in the fibers.

(a)

(b)

(c)

(d)