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. Author manuscript; available in PMC: 2019 Jul 26.
Published in final edited form as: Ind Eng Chem Res. 2010 Apr 26;49:4687–4693. doi: 10.1021/ie901580k

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