Table 1.

Modeled kinetic parameters for the adsorption of CV and MB by Cel or PhCel.

Adsorbent	pH	Dye	qe,exp (mg g−1)	Pseudo-First-Order Model			Pseudo-Second-Order Model				Elovich Model
				k1 (min−1)	qe,cal (mg g−1)	R2	k2 (g mg−1 min−1)	qe,cal (mg g−1)	h (mg g−1 min−1)	R2	α (mg g−1 min−1)	β (g mg−1)	R2
Cel	7.0	CV	24.7470	0.0328	24.5225	0.9815	0.0014	28.7321	1.1557	0.9879	3.3022	0.1788	0.9829
	8.0	MB	9.6460	0.0201	10.2337	0.9892	0.0016	12.8901	0.2658	0.9861	0.5198	0.3359	0.9818
PhCel	6.0	CV	34.8730	0.0460	34.1093	0.9795	0.0019	37.9294	2.7334	0.9838	18.6190	0.1769	0.9741
	8.0	MB	41.7840	0.0262	43.5332	0.9845	0.0005	53.2477	1.4177	0.9661	2.8421	0.0823	0.9512