Pseudo first order and second order model parameters for the adsorption of MB onto VNU-23.

Kinetic models	Paramaters	Value
	q e,exp (mg g−1)	159.8
Pseudo first order	q e,cal (mg g−1)	104.3
	k f (min−1)	0.026
	R 2	0.882
Pseudo second order	q e,cal (mg g−1)	166.7
	k s (10−4) (g mg−1 min−1)	4.912
	R 2	0.999