Research Article
Effect of Physical and Chemical Activation on the Removal of Hexavalent Chromium Ions Using Palm Tree Branches
Table 1
Characteristics of different adsorbents investigated.
| Parameter | Adsorbents | RPB | APBH 20 | APBH 50 | APBS | APBK |
|
(m2 g−1) | 147 | 157 | 401.3 | 90 | 215 | Pore volume (cm3 g−1) | 0.014 | 0.070 | 0.134 | 0.029 | 0.091 | Pore radius (Å) | 7.4 | 7.2 | 7.3 | 7.1 | 7.2 |
pHpzc | 4.1 | 4.3 | 3.7 | 6.7 | 7.5 |
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