Table 2. BET Specific Surface Area and Pore Size of Fe3O4@SiO2@mC and Fe3O4@SiO2@mC-H2O2 Based on BET Technique.
| materials | SBET (m2 g–1) | micropore area (m2 g–1) | external surface area (m2 g–1) | pore volume (cm3g–1) | pore size (nm) |
|---|---|---|---|---|---|
| Fe3O4@SiO2@mC | 781 | 303 | 478 | 0.47 | 3.65 |
| Fe3O4@SiO2@mC-H2O2 | 731 | 245 | 486 | 0.42 | 3.56 |