Table 3.

Adsorption kinetic parameters of the intra-particle diffusion model for the adsorption of sulfonated lignite by filter paper-templated Mg-Al metal oxides.

Concentration	Intra-Particle Diffusion Model
C 0	K d1	K d2	C 1	C 2	R 1 2	R 2 2
100	5.742	1.378	127.84	217.33	0.516	0.436
150	3.204	0.490	251.42	361.91	0.809	0.698
200	10.110	1.257	312.66	469.61	0.995	0.698