The Improvement of Natural Thai Bentonite Modified with Cationic Surfactants on Hexavalent Chromium Adsorption from an Aqueous Solution

Table 3

Parameters of the isotherm adsorption analysis.

Isotherm models	Adsorbent
	1CPC	1HDTMA
Freundlich isotherm
	0.51	0.21
	1.41	1.76
	0.9754	0.9847
Langmuir isotherm
	24.83	15.83
	0.03	0.04
R^2	0.9600	0.9788
Temkin isotherm
BT (J mol^-1)	24.99	30.12
KT (L mg^-1)	0.20	0.17
	0.9743	0.9433