Calculated kinetic parameters for the removal of CV by superabsorbent hydrogels from aqueous medium.

Sample	Initial concentration (ppm)	Pseudo first order kinetics				Pseudo second order kinetics
		k L (min−1)	q exp (mg g−1)	q cal (mg g−1)	R 2	k 2 (min−1)	q exp (mg g−1)	q cal (mg g−1)	R 2
AS	3	0.253	0.73	0.53	0.93	1.12	0.73	0.728	0.98
	5	0.208	1.15	0.63	0.95	1.05	1.15	1.153	0.99
	7	0.267	1.40	1.35	0.83	0.699	1.40	1.4	0.99
	9	0.137	1.51	0.73	0.82	0.56	1.51	1.506	0.99
	11	0.294	1.78	1.46	0.98	0.416	1.78	1.777	0.99
ASA1	3	0.127	0.925	0.316	0.98	1.91	0.925	0.926	0.99
	5	0.110	1.47	0.433	0.15	0.458	1.47	1.469	0.97
	7	0.157	2.06	1.18	0.82	0.392	2.06	2.056	0.97
	9	0.260	2.64	2.74	0.91	0.176	2.64	2.643	0.95
	11	0.139	3.31	2.91	0.92	0.09	3.31	3.315	0.90
ASA2	3	0.328	0.95	0.943	0.95	0.392	0.95	0.949	0.97
	5	0.369	1.55	1.145	0.88	0.511	1.55	1.552	0.99
	7	0.496	2.13	3.38	0.92	0.320	2.13	2.132	0.98
	9	0.626	2.73	5.982	0.90	0.251	2.73	2.727	0.98
	11	0.297	3.34	3.25	0.97	0.187	3.34	3.339	0.98