Figure 3

(a) UV–visible absorption spectra of the rGO5@ZnO composite compared with ZnO and rGO, (b) Tauc plots of rGO5@ZnO composite, compared with ZnO.
(a) UV–visible absorption spectra of the rGO5@ZnO composite compared with ZnO and rGO, (b) Tauc plots of rGO5@ZnO composite, compared with ZnO.