Constants and parameters derived from three adsorption isotherm models.

Models and equations	Constants		293 K	313 K	333 K
	q m (mg g−1)		416.7	500.0	625.0
Langmuir	b (L mg−1)		1.13	0.500	0.313
C e/qe = 1/qmb + Ce/qm	R L	C 0 = 4 mg L−1	0.181	0.333	0.444
R L = 1/(1 + bC0)		C 0 = 8 mg L−1	0.0996	0.200	0.285
		C 0 = 12 mg L−1	0.0687	0.143	0.210
	R 2		0.991	0.981	0.987
Freundlich	K F (mg g−1 (L mg−1)1/n)		200.5	301.8	438.8
ln(qe) = ln(KF) + (1/n)ln(Ce)	n −1		0.336	0.305	0.284
	R 2		0.989	0.989	0.967
Dubinin–Radushkevich	q s (×10−3 mol g−1)		0.88	1.05	1.36
ln(qe) = ln(qs) – Bε2	B (mol2 kJ−2 × 10−8)		15.0	4.42	2.31
ε = RT ln(1 + 1/Ce)	E (kJ mol−1)		1.83	3.36	4.65
E = (2B)−1/2	R 2		0.916	0.918	0.939