Table 5.

The parameters of the Langmuir and Freundlich equations and correlation coefficients for the adsorption of anthracene on Hal, Hal-350, Hal-450, Hal-550 and Hal-CNT composites.

Sample	Langmuir			Freundlich
	${\mathit{a}}_{\mathit{L}}$ (mg/g)	$\mathit{b}$ (L/mg)	R2 (-)	${\mathit{K}}_{\mathit{f}}$ ((mg/g)·(L/mg)n)	$\mathit{n}$ (-)	R2 (-)
Hal	0.21	32.30	0.9592	0.21	5.01	0.8171
Hal-350	0.21	7.21	0.9548	0.19	3.05	0.9045
Hal-450	0.22	8.32	0.9871	0.19	3.52	0.9518
Hal-550	0.18	14.47	0.9633	0.17	4.51	0.8805
Hal-SWCNT 96:4-350	0.43	6.67	0.9531	0.37	2.92	0.8905
Hal-SWCNT 96:4-450	0.44	8.24	0.9867	0.38	3.52	0.9464
Hal-SWCNT 96:4-550	0.36	13.84	0.9609	0.34	4.07	0.9596
Hal-SWCNT 85:15	0.84	24.78	0.9519	0.84	4.38	0.8174
Hal-SWCNT-OH 85:15	0.54	26.29	0.9646	0.54	4.53	0.8701
Hal-SWCNT-OH 96:4	0.49	20.87	0.9963	0.47	5.06	0.8819