Table 1.

Structural and Rietveld refine parameters of ZnO-NPs.

Sample	ZnO-NPs
Structure	Hexagonal-wurtize
Space group	P-63-mc
a (Å)	3.251287
b (Å)	3.251287
c (Å)	5.208760
Volume (Å)3	47.684
${\chi }^2$	2.15
$R_p$	14.7
$R_{wp}$	21.5
$R_e$	25.4
Average Crystallite size (Scherer method) (nm)	20
Strain (Ɛ)	0.00224