Table 3.

Adsorption isotherm parameters for the Langmuir and Freundlich models.

Sample	Langmuir Model			Freundlich Model
	${\mathit{Q}}_{\mathit{m}} (\mathbf{mg} \mathbf{g}{-}^1)$	b	R2	n	${\mathit{k}}_{\mathit{f}}$	R2
CNC aerogel	208.3	0.046	0.998	2.19	19.6	0.934
CNC-g-P(AA/AM)-0.5	326.8	0.026	0.998	1.95	22.5	0.933
CNC-g-P(AA/AM)-1	366.3	0.060	0.998	2.19	33.3	0.933
CNC-g-P(AA/AM)-2	302.1	0.024	0.998	2.20	27.0	0.939