Table 2.
Physiochemical characteristics of untreated and pretreated RS
| RS | Crystallinitya | Ra (nm)b | Rmax (nm)b | SSA (m2 g−1)c | PV (cm3 g−1)c |
|---|---|---|---|---|---|
| Untreated | 0.489 | 12.4 | 111 | 0.647 | 0.0021 |
| Fenton | 0.575 | 64.2 | 692 | 0.936 | 0.0023 |
| Fenton + B-8 | 0.644 | 64.6 | 523 | 0.967 | 0.0033 |
aCrystallinity calculated from XRD analysis. b Ra: average surface area roughness; Rmax: the maximum vertical distance between the highest and lowest data points in the AFM image. c SSA: specific surface area; PV is the total pore volume calculated from BET analysis