Figure 7

(a) XPS survey spectra of pristine CBs and 60 wt.% ZnO@CBs (b) C 1s spectrum (c) N 1s spectrum (d) O 1s spectrum and (e) Zn 2p spectrum of 60 wt.% ZnO@CBs.

(a) XPS survey spectra of pristine CBs and 60 wt.% ZnO@CBs (b) C 1s spectrum (c) N 1s spectrum (d) O 1s spectrum and (e) Zn 2p spectrum of 60 wt.% ZnO@CBs.