Table 5.

Langmuir, Freundlich, Temkin and Dubinin–Radushkevich (D–R) isotherm parameters for adsorption of BB dye onto BL-CNSs.

		BL1-CNSS	BL2-CNSS	BL3-CNSS	BL4-CNSS	BL5-CNSS	BL6-CNSS	BL7-CNSS	BL8-CNSS	BL9-CNSS
Langmiur isotherm	Qm, mg g−1	24.558	32.000	31.756	2.441	34.990	35.817	70.522	2.506	40.733
	b, L mg−1	0.009	0.002	0.009	0.069	0.004	0.024	0.060	0.146	0.149
	R2	0.515	0.382	0.977	0.500	0.764	0.845	0.976	0.002	0.989
	RL, mg L−1	0.154	0.469	0.150	0.024	0.293	0.065	0.027	0.011	0.011
Freundlich isotherm	N	1.636	0.780	0.583	1.171	1.017	1.547	1.275	0.735	2.370
	KF, mg g−1	1.511	70.909	150.557	4.159	9.183	1.280	3.112	7.698	5.303
	R2	0.914	0.930	0.956	0.975	0.949	0.917	0.791	0.917	0.216
Temkin isotherm	B, J.mol−1	0.646	0.944	0.351	0.492	0.575	0.381	0.157	0.156	0.345
	KT, L.mg−1	5.028	12.529	12.055	8.294	9.550	3.028	1.750	7.921	1.994
	R2	0.769	0.887	0.951	0.834	0.916	0.791	0.969	0.986	0.372
D–R isotherm	Β, mol2 KJ−2	1.0E−05	5.0E−05	7.0E−05	2.0E−05	3.0E−05	4.0E−06	3.0E−06	4.0E−05	4.0E−06
	Qm, mg g−1	8.654	4.135	10.574	8.625	7.587	11.603	42.730	31.507	26.846
	ED-R, KJ mol−1	0.224	0.100	0.085	0.158	0.129	0.354	0.408	0.112	0.354
	R2	0.765	0.891	0.886	0.770	0.855	0.133	0.953	0.967	0.150