Table 1.
Pore Diameters and Surfaces Areas of Silica Particles before and after S4-Functionalization. Silicas A and B Are Amorphous Silica Gel Particles and Ludox Is a Colloidal Silica Particle Which Has a Nonporous Base Particle
unfunctionalized silica | S4-functionalized silica | ||||
---|---|---|---|---|---|
silica sample | average particle diameter (μm) | average pore diameter (nm) | surface area (m2 g−1) | average pore diameter (nm) | surface area (m2 g−1) |
silica A | 3.7 | 9.6 | 206 | 3.3 | 264 |
silica B | 3.3 | 2.9 | 484 | 4.7 | 61 |
Ludox | 0.022 | 7.1 | 76 | 3.2 | 243 |