Textural and physicochemical properties of the GACs.
| GACs | S BET (m2 g−1) | XPS (atom based) (%) | Acidic groups (mmol g−1) | Basic groups (mmol g−1) | pHpzc | Micropore area (m2 g−1) | External surface area (m2 g−1) | ||
|---|---|---|---|---|---|---|---|---|---|
| C | N | O | |||||||
| GAC | 1392 | 95.19 | 0.58 | 4.23 | 0.25 | 0.39 | 7.4 | 930 | 461 |
| GACox | 48 | 80.76 | 1.62 | 17.61 | 1.07 | 0.82 | 5.8 | 40 | 8 |