Table 2.

Colloidal properties of ZnO-S, ZnO-P and ZnO-F.

Sample	Zeta Potential (mV)	Hydrodynamic Size (nm)	Polydispersity Indices (μ2/Г2)
ZnO-S	−15.3 ± 2	1050 ± 80	0.369
ZnO-P	−19.5 ± 2	860 ± 80	0.385
ZnO-F	−25.60 ± 2	750 ± 80	0.407