Graphene Oxide Nanoadsorbent for the Removal of Fluoride Ion from Groundwater: Adsorbent Performance and Adsorption Mechanism

Table 3

The kinetics parameters for the adsorption of fluoride ions by GO.

	Parameter	Value
SFO	qe,exp (mg/g)	0.2263
	qe,calc (mg/g)	0.0920
	Kf (g/mg min)	0.0381
	R^2	0.96
SSO	qe,exp (mg/g)	0.2263
	qe,calc (mg/g)	0.2533
	Ks (g/mg min)	0.739
	R^2	0.99
Intraparticle diffusion	Kid1 (mg/g min^0.5)	0.0086
	Ci1 (mg/g)	0.161
		0.86
	Kid2 (mg/g min^0.5)	11.1
	Ci2 (mg/g)	89.72
		0.85
	Kid3 (mg/g min^0.5)	0.061
	Ci3 (mg/g)	109.3
		0.61
Particle diffusion	(mg/g min)	0.221