Preparation and Photocatalytic Performances of WO₃/TiO₂ Composite Nanofibers

Figure 7

XPS spectra of 5% WO₃/TiO₂ nanofibers. (a) Survey spectra, (b) C 1s, (c) O 1s, (d) Ti 2p, and (e) W 4f.

(a)

(b)

(c)

(d)

(e)