International Scholarly Research Notices

Research Article

Sorption of Tetracycline, Oxytetracycline, and Chlortetracycline in Illite and Kaolinite Suspensions

Table 1

Adsorption of tetracycline, oxytetracycline, and chlortetracycline on illite and kaolinite saturated with different cations at several ionic strengths (of appropriate salt) at 293 K.


Ionic strength	Saturating cation	Amount of tetracycline sorbed (mg/g)		Amount of oxytetracycline sorbed (mg/g)		Amount of chlortetracycline sorbed (mg/g)
Ionic strength	Saturating cation	Illite	Kaolinite	Illite	Kaolinite	Illite	Kaolinite

	Al³⁺	8.62	4.65	8.85	4.78	9.03	4.92
	Na⁺	8.41	4.54	8.67	4.65	8.82	4.78
	K⁺	8.29	4.41	8.52	4.52	8.65	4.65
	Ca²⁺	8.15	4.25	8.41	4.40	8.49	4.52

	Al³⁺	8.23	4.32	17.10	4.52	17.32	4.74
	Na⁺	8.04	4.18	16.84	4.38	17.10	4.50
	K⁺	7.95	4.07	16.66	4.25	16.90	4.40
	Ca²⁺	7.77	3.96	16.40	4.14	16.62	4.25

	Al³⁺	7.96	4.02	16.70	4.26	16.85	4.45
	Na⁺	7.84	3.90	16.44	4.12	16.62	4.26
	K⁺	7.68	3.75	16.25	3.92	16.40	4.10
	Ca²⁺	7.52	3.58	16.08	3.78	16.22	3.88

	Al³⁺	7.15	3.76	16.35	3.90	16.55	4.12
	Na⁺	6.95	3.62	16.12	3.75	16.28	3.88
	K⁺	6.74	3.45	15.90	3.55	16.04	3.65
	Ca²⁺	6.50	3.32	15.68	3.45	15.84	3.54

	Al³⁺	6.75	3.58	15.75	3.70	15.94	3.88
	Na⁺	6.44	3.46	15.62	3.55	15.80	3.65
	K⁺	6.32	3.28	15.54	3.40	15.65	3.43
	Ca²⁺	6.18	3.14	15.38	3.22	15.50	3.38

	Al³⁺	6.24	3.44	15.18	3.54	15.32	3.62
	Na⁺	5.92	3.28	15.06	3.36	15.20	3.55
	K⁺	5.78	3.14	14.92	3.24	15.06	3.34
	Ca²⁺	5.58	3.07	14.80	3.12	14.92	3.26

, 1.08, 1.62	Al³⁺	6.14	3.32	6.36	3.38	6.48	3.47
	Na⁺	5.86	3.15	6.02	3.20	6.10	3.29
	K⁺	5.74	3.07	5.84	3.10	5.98	3.16
	Ca²⁺	5.56	2.95	5.72	3.02	5.86	3.10