Table 1.

The kinetic parameters of adsorption of MB onto B-b-S-P microspheres.

Models	Parameters	15 mg L−1	25 mg L−1
Pseudo-first-order	k1 (min−1)	0.0292	0.0283
	qe (cal.) (mg g−1)	9.8384	21.066
	qe (exp.) (mg g−1)	28.643	48.243
	R 2	0.9163	0.9587
Pseudo-second-order	k2 (g mg−1 min−1)	0.0120	0.0042
	qe (cal.) (mg g−1)	29.155	49.505
	qe (exp.) (mg g−1)	28.643	48.243
	R 2	0.9996	0.9994
Intraparticle diffusion	ki1 (mg g−1 min−0.5)	3.8658	5.7591
	C 1	6.8537	12.744
	R 1 2	0.9843	0.9413
	ki2 (mg g−1 min−0.5)	0.2945	0.8029
	C 2	24.930	38.259
	R 2 2	0.9395	0.8994