Structural Variety and Adsorptive Properties of Mesoporous Silicas with Immobilized Oligosaccharide Groups

Table 2 Kinetic parameters of benzene adsorption on MCM-41 silicas

Silica	Pseudo-first-order kinetic model (Lagergren)			Pseudo-second-order kinetic model (Ho-McKay)
Silica	k ₁ (1 g⁻¹)	a _eq (mmol g⁻¹)	R ²	k ₂ (g mmol⁻¹ min⁻¹)	a _eq (mmol g⁻¹)	R ²
MCM-41	0.013	0.261	0.948	0.060	0.431	0.997
NH₂-MCM-41	0.013	0.344	0.920	0.018	0.663	0.961
β-CD-APTES-MCM-41	0.014	1.067	0.944	0.011	1.016	0.964
β-CD-APTES₃-MCM-41	0.010	0.142	0.806	0.159	0.658	0.998
β-CD-APTES₅-MCM-41	0.009	0.340	0.974	0.052	0.685	0.995