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| materials | SBET m2 g–1 | Cu(II) | Pb(II) | refs |
|---|---|---|---|---|
| activated carbon | 1092 | 6.6 | 13.1 | (33) |
| carbon-encapsulated magnetic NPs | 3.21 | (34) | ||
| oxidized SWCNTs | 122 | 5.40 | 6.20 | (35) |
| magnetic porous graphitic carbon | 918 | 7.79 | (23) | |
| Fe3O4@C | 159.8 | 79.0 | (24) | |
| magnetite-carbonaceous spheres | 206.6 | 126 | (36) | |
| GO-TiO2 | 8.20 | 64.2 | (37) | |
| GO | 149 | (2) | ||
| amino-functionalized CMK-3 | 15 | 42.0 | 177 | (38) |
| Fe3O4@SiO2@mC | 781 | 48.5 | 94.0 | this work |
| Fe3O4@SiO2@mC-H2O2 | 731 | 86.5 | 156 | this work |
