Table 2.
Average aggregate size of SiO2 samples: MCM-41, SBA-3, SBA-15, SN and SM.
| materials | MCM-41 | SBA-3 | SBA-15 | SN | SM |
|---|---|---|---|---|---|
| Average aggregate size (nm) | 55.97 | 65.36 | 220.9 | 72.92 | 260.7 |
| Zeta potential (mV) | −32.8 | −46.1 | −26.3 | −31.4 | −25.9 |
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