Adsorption Characteristics of Bixin on Acid- and Alkali-Treated Kaolinite in Aprotic Solvents

Table 3

Adsorption isotherm parameters for the adsorption of bixin on kaolinite.

Solvent	Adsorbent	Freundlich			Langmuir
		KF	1/n	r^2	KL	qm	r^2
Acetone	KN	0.13	0.25	0.7043	1.16	0.24	0.9747
	KA	0.14	0.17	0.7107	1.22	0.22	0.9691
	KB	0.23	0.10	0.6005	4.00	0.29	0.9893
Dimethyl carbonate	KN	0.14	0.10	0.5600	2.03	0.18	0.9915
	KA	0.11	0.19	0.8362	0.48	0.21	0.9807
	KB	0.32	0.14	0.5701	5.00	0.43	0.9927