Table 1. Kinetic Parameters of Dye Adsorption for Different Adsorbent Dosages.

		pseudo-first-order			pseudo-second-order			intraparticle diffusion
membrane	(qe)exp	(qe)cal	k1	R2	(qe)cal	k2	R2	kid	I	R2
M1	35.62	36.12	0.047442	0.9379	35.78	0.005135	0.9982	3.021	13.68	0.7876
M2	39.51	40.67	0.396120	0.9102	39.93	0.00430	0.9972	3.33	14.37	0.7757
M3	44.72	45.90	0.040533	0.9298	44.30	0.007681	0.9995	2.725	25.68	0.7014
M4	42.85	43.28	0.050896	0.9482	43.06	0.004295	0.9982	3.649	16.58	0.7938