Table 1.
Colloidal properties following continuous vs. discrete sonication.
| Material | SSA (m2/g) | dBET (nm) | DSEcr (J/ml) | ζ (mV) | Continuous sonication | Discrete sonication | ||
|---|---|---|---|---|---|---|---|---|
| dH (nm) | PDI | dH (nm) | PDI | |||||
| Ag15%/SiO2 | 250.1±10.0 | 6.4 (Ag) 7.1±0.3 (SiO2) |
480 | 22.2±1.5 | 528.2±120.6 | 0.63±0.06 | 135.2±2.0 | 0.29±0.03 |
| CeO2 | 129.5±5.2 | 5.3±0.2 | 630 | 9.2±3.1 | 317.1±19.7 | 0.49±0.02 | 156.9±1.4 | 0.27±0.04 |
| Ag | 31.2±0.5 | 18.3±0.3 | 350 | 33.7±0.6 | 180.7±9.6 | 0.53±0.11 | 109.5±0.6 | 0.44±0.01 |
| Fe2O3 | 130.6±5.2 | 10.2±0.5 | 320 | 31.9±1.8 | 128.1±0.8 | 0.27±0.02 | 133.5±2.1 | 0.25±0.01 |
SSA (specific surface area) by nitrogen/Brunauer Teller (BET) method. dBET : primary particle diameter determined from SSA; ζ: zeta potential, dH: mean hydrodynamic diameter from DLS volume weighted size distribution taken at t=0 post sonication and in DI water