Preparation of Magnetic Composite Polyaniline/Fe₃O₄−Hydrotalcite and Performance in Removal of Methyl Orange

Table 2

Kinetic parameters of MO adsorption on Pan/MHT composite.

Adsorbents	(mg/g)	Pseudofirst−order			Pseudosecond−order			Intraparticle diffusion
		(mg/g)	(min^−1)		(mg/g)	g/(mg min)	R^2	Mg/g min^0.5
0.5 Pan/MHT	16.52	10.63	0.008	0.837	19,92	0.004	0.994	0.195	2.036	0.748
1 Pan/MHT	21.42	11.32	0.009	0.821	25,77	0.002	0.998	0.208	3.787	0.709
2 Pan/MHT	38.61	12.91	0.009	0.855	34,72	0.009	0.999	0.174	11.38	0.742