Table 1.

Kinetics parameters calculated on the basis of Equations (2) and (3) for methylene blue (MB) adsorption of carbon nanotubes (CNTs) prepared with 0.75 wt% Ni catalysts.

Langmuir			Freundich			Pseudo-First-Order			Pseudo-Second-Order
Q 0	b	R 2	kF	n	R 2	q e	k 1	R 2	q e	k 2	R 2
33.10	0.068	0.961	1.056	1.26	0.984	15.6	0.41	0.987	16.5	0.1433	0.999