Fig. 9

EDX spectra of pure ZnO and ZnO–Al2O3 confirming the successful incorporation of Al2O3, with corresponding elemental weight percentages revealing the presence of Al (2.93 wt%) alongside Zn and O.

EDX spectra of pure ZnO and ZnO–Al2O3 confirming the successful incorporation of Al2O3, with corresponding elemental weight percentages revealing the presence of Al (2.93 wt%) alongside Zn and O.