Table 1.

Structural parameter obtained from XRD analysis of ZnO nanoparticles synthesized by milling at different time.

ZnO with different milling hour	Lattice parameter in (nm)		Tetragonal factor (c/a)	Crystallite size (nm)
	a	c
Bulk (0 h)	0.32495	0.52061	1.602127	50
7 h	0.32426	0.52022	211.604329	22
10 h	0.32414	0.51967	1.603227	18