Green Synthesis and Characterizations of Zinc Oxide (ZnO) Nanoparticles Using Aqueous Leaf Extracts of Coffee (Coffea arabica) and Its Application in Environmental Toxicity Reduction

Table 1

Evaluation of calculated crystal size (nm) from XRD results.

No.	2 theta (degree)	FWMH (radians)	(nm)
1	25.61	0.195	85.51
2	26.32	9.85	2.50
3	32.70	0.255	56.01
4	34.09	8.06	1.88