Table 2.

Intraparticle diffusion kinetic parameters (q_t = k_idt^0.5 +C) of MB adsorption onto AM(1/2)-S(1/2) NPs (linear fit).

Sample	AM1	AM1-S1	AM1-S2	AM2	AM2-S1	AM2-S2
kid (I) (mg/g h)	8.0733 ± 0.31805	15.84282 ± 0.63744	13.12463 ± 0.35639	9.9987 ± 0.10022	19.49776 ± 0.79502	21.35053 ± 0.64258
Kid (II) (mg/g h)	3.44207 ± 0.56132	6.45414 ± 0.62699	5.52582 ± 0.10893	1.72125 ± 0.0643	1.16797 ± 0.18842	2.15124 ± 0.43609
CII(mg g−1)	18.39	36.70	33.30	36.67	76.79	73.28
Kid (III) (mg/g h)	0.7473 ± 0.10607	1.25483 ± 0.36674	1.76237 ± 2.7× 10-5	1.24082 ± 0.0818	0.98705 ± 0.04854	0.76131 ± 0.17163
CIII(mg g−1)	36.36	69.16	59.10	41.25	78.02	81.73
Break point (min0.5)	3.97	3.909	4.38	4.43	4.18	3.81
	6.66	6.24	6.85	9.51	6.82	6.08
R2 (I)	0.99383	0.99357	0.99706	0.9997	0.9965	0.99729
R2 (II)	0.9495	0.98148	0.9992	0.99722	0.97464	0.92406
R2 (III)	0.98025	0.9213	0.9999	0.9956	0.99759	0.90773