Table 3.

Kinetic study model fitting parameters.

Kinetic model	Kinetic equation	Model parameters	Values
Pseudo first order	$q_t=q_e(1-e^{-K_{1}t}$) qe is the adsorption capacity at equilibrium, k1 is the pseudo-first-order rate constant	K1 (min−1)	0.12
		qe (mg/g)	43.48
		R2	0.86
Pseudo second order	$q_t=\frac{{q_e}^2{K}_{2}t}{1+q_e{K}_{2}t}$ k2 is the pseudo-second-order rate constant	K2 (g/(mg min))	0.004
		qe (mg/g)	46.6
		R2	0.98
Mixed first and second order	$q_t=q_e\frac{1-e^{-Kt}}{1-f_2{e}^{-Kt}}$ f2 is the mixed 1 st, 2nd order coefficient, k is the adsorption rate constant	K (min−1)	0.0022
		qe (mg/g)	46.33
		f2 (g/(mg.min))	0.99
		R2	0.98
Avrami model	$q_t=q_e\left(1,-,{\left[e^{-K_{\mathit{av}}t}\right]}^{n_{\mathit{av}}}\right)$ kav is the Avrami rate constant and nav is the model's component	Kav (min−1)	43.48
		nav (−)	0.36
		qe (mg/g)	0.34
		R2	0.86
Intraparticle diffusion	$q_t=K_{\mathit{ip}}\sqrt{t}+C_{\mathit{ip}}$ Cip is intraparticle diffusion constant and kip is a measure of diffusion coefficient	kip	1.66
		Cip	26.8
		R2	0.76