Fitting parameters of the adsorption of MB on M3D–PAA and M3D–PAA–CCN using Langmuir and Freundlich isotherm models.

Composites	Langmuir model			Freundlich model
	q m (mg g−1)	χ 2	b	K F	n	1/n	χ 2
M3D–PAA	114 ± 5	45	0.153	26 ± 3	2.5	0.40	203
M3D–PAA–CCN	332 ± 7	86	0.131	68 ± 4	2.4	0.42	692