Particle sizes, surface charges, and the BET-quantified pore structures of various MSN.
| Sample | Particle sizea (nm) | Surface chargea (mV) | BET surface areab (m2 g−1) | Volume of poresc (cm3 g−1) | Mean size of poresc (nm) |
|---|---|---|---|---|---|
| MSN2 | 133.5 ± 6.8, (0.159) | −38.2 ± 4.2 | 423 | 0.492 | 2.3 |
| MSN5 | 133.9 ± 13.0, (0.057) | −35.4 ± 3.2 | 650 | 1.229 | 5.4 |
| MSN8 | 130.0 ± 15.3, (0.067) | −36.7 ± 2.1 | 715 | 1.697 | 8.2 |
a
Particle sizes and surface charges were determined by DLS measurement. Indicated values were mean ± SD (n = 3). Values in parentheses represent the polydispersity index (PDI).
b
Obtained from BET method.
c
Obtained from BJH method.