Table 3.

Summary of the parameters extracted using the Langmuir, Freundlich, Dubinin Radushkevich, and BET isothermal modeling.

Langmuir	qm (mg g−1)	KL (L mg−1)	R2
	269	0.053	0.960
Freundlich	1/n	KF[(mg g−1)(L mg−1)1/n]	R2
	0.386	32.4	0.832
D-R	KD-R(mol2 kJ−2)	E(kJ mol−1)	R2
	0.005	10.1	0.882
BET	q m (mg g-1)	KS (L mg−1)	KL (L mg−1)	R2
	299	0.046	0	0.935

Note: pH was 7 and the temperature was 20 °C. The adsorbent mass was kept at 1 g L⁻¹ while the MB concentration was varied from 5 to 460 mg L⁻¹.