Green Synthesis Ca-MgO Nanosorbent for the Uptake of Cobalt Ions from Aqueous Media

Table 1

Kinetics models for Co (II) adsorption onto CaO.MgO nanosorbent.

Kinetics model	Kinetic equation	Parameters	Values
PFO [59]		Qe (mg/g)	14.38 ± 1.07
		K1 (min^−1)	0.0174 ± 0.19
		R^2	0.9038
PSO [59]		Qm (exp) (mg/g)	113.5 ± 1.24
		Qm (cal) (mg/g)	112.49
		K2 (g/mg.·min)	0.0029 ± 0.41
		h0 (mg/g·min)	36.95
		t1/2 (min)	3.044
		R^2	0.9999
Intraparticle diffusion [60]		Kdif1(mg. min^1/2/g)	19.51
		C1	5.997
		R^2	0.9671
		Kdif2 (mg. min^1/2/g)	0.816
		C2	109.8
		R^2	0.6783