Pseudo-first-order and pseudo-second-order kinetic parameters for Sb(iii) and Cd(ii) adsorbed using BC and MnFe₂O₄–BC in a binary system.

Sample	Ion	Experimental parameters		Pseudo-first order			Pseudo-second order
		pH	q e,exp (mg g−1)	k 1 (min−1)	q e,cal (mg g−1)	R 2	k 2 (g mg−1 min−1)	q e,cal (mg g−1)	R 2
BC	Sb(iii)	7	24.60	0.0034	8.59	0.636	0.0010	25.11	0.999
BC	Cd(ii)	7	21.60	0.0041	20.85	0.885	2 × 10−6	21.52	0.934
MnFe2O4–BC	Sb(iii)	7	62.80	0.0035	3.55	0.551	0.0040	62.93	0.999
MnFe2O4–BC	Cd(ii)	7	48.80	0.0044	3.89	0.743	0.024	48.99	0.999