Isotherm parameters using models of Langmuir, Freundlich, and Temkin for the adsorption of mercury(ii).

Langmuir				Freundlich				Temkin			Dubinin–Radushkevich
q m (mg g−1)	K L (L mg−1)	R L	R 2	1/n	n	K F (mg g−1)	R 2	K T (L g−1)	b T (kJ mol−1)	R 2	q D (mg g−1)	B D (mol2 kJ−1)	E (kJ mol−1)	R 2
19.2	1.18	0.01–0.04	0.994	0.315	3.17	8.43	0.998	32.98	0.86	0.975	13.9	0.0356	3.75	0.877