Table 2.

Kinetic constants for the adsorption of ibuprofen on MPC.

kinetic models	parameters	unit	value
pseudo-first-order	k1	min−1/(mg l−1)1/n	0.0154
	qe	mg g−1	70.74
	R2		0.9946
pseudo-second-order	k2	g (mg min)−1 × 104	2.97
	qe	mg g−1	99.21
	H = k2qe2		2.926
	R2		0.9994
Elovich	β	g mg−1	0.0236
	α	mg (g min)−1	30.38
	R2		0.9543
Bangham	kB	ml (g l−1)−1	0.0429
	αB		0.5528
	R2		0.9689