Sodium Dodecyl Sulfate-Modified Fe₂O₃/Molecular Sieves for Removal of Rhodamine B Dyes

Table 6

Pseudo-second-order and intraparticle diffusion modelling results.

(mg/L)	Pseudo-second-order				Intraparticle diffusion
	(mg/g)	(mg/g)	(g/mg/min)	R^2	(mg/g)	(mg/g/min^1/2)	R^2
25	24.816	24.875	0.177	1	24	0.065	0.93
50	47.806	48.077	0.0555	1	45.9	0.26	0.93
75	66.589	66.67	0.0775	1	64.82	0.26	0.76
100	87.83	87.71	0.016	0.998	81.63	0.668	0.91