Table 3.
Structural properties of silica-based organic hydrophilic aerogel samples.
| Sample | SCEA | SCEB | SCMA | SCMB |
|---|---|---|---|---|
| Mean pore Diameter (nm) | 7.7 | 21.8 | 10.6 | 21.7 |
| Specific surface Area (cm2 g−1) | 998 | 450 | 526 | 608 |
| Total pore Volume (cm3 g−1) | 1.9 | 2.4 | 1.6 | 3.5 |
| Density (g cm−3) | 0.050 | 0.047 | 0.042 | 0.039 |
| Contact angle | <90° | <90° | <90° | <90° |
SCEA, SCEB, SCMA, SCMB - Hydrophilic aerogels. SCEA – Precursor (TEOS) + Water + Solvent (Ethanol), pH 1; SCEB – Precursor (TEOS) + Water + Solvent (Ethanol), pH 8; SCMA – Precursor (TMOS) + Water + Solvent (Methanol), pH 1; SCMB – Precursor (TMOS) + Water + Solvent (Methanol), pH 8.