Values of pHPZC and CEC of the activated carbons before and after treatment.
| Adsorbents | pHPZC | CEC (mmol g−1) |
|---|---|---|
| ACBefore treatment | 7.65 | 1.0 |
| AC 1 N | 6.85 | 0.9 |
| AC 2 N | 7.3 | 1.8 |
| AC 3 N | 6.87 | 1.4 |
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