Table 2.

Parameters for adsorption kinetic study.

The initial concentration of Mn(II)(mg/L)		10	50	125
qexp(mg/g)		2.07	8.47	19.81
Pseudo-first order	qcal(mg/g)	1.59	3.11	11.23
	k1	0.0075	0.0062	0.0097
	R2	0.9476	0.5323	0.7396
Pseudo-second order	qcal(mg/g)	2.49	9.50	21.09
	k2	0.0041	0.0017	0.0014
	R2	0.9866	0.9733	0.9954
Intra-particle diffusion	ki1	0.1565	0.7575	1.6744
	ki2	0.0665	−0.0320	0.1471
	ki3	0.0361	−0.0881	0.3080
	R12	0.9908	0.9857	0.9996
	R22	0.9334	0.1019	0.8763
	R23	0.9443	0.9995	0.8720