Cr(VI) Removal from Aqueous by Adsorption on Amine-Functionalized Mesoporous Silica Prepared from Silica Fume

Table 2

Kinetic model parameters for Cr(VI).

Model	(mg/g)		(mg/g) or C
Pseudo-first-order	47.27	0.059	26.87	0.957
Pseudo-second-order		0.04	50.00	0.998
Intraparticle diffusion		5.133	29.95	0.982