Synthesis, Characterization, and Photocatalytic Activity of N-Doped ZnO/ZnS Composites

Figure 4

XPS spectra of samples: (a) XPS survey spectra, (b) C1s, (c) N1s, (d) S2p, (e) O1s, and (f) Zn2p state.

(a)

(b)

(c)

(d)

(e)

(f)