Research Article
Nitrogen-Doped Carbonaceous Materials for Removal of Phenol from Aqueous Solutions
Table 2
Freundlich and Langmuir parameters for the adsorption of phenol.
| Adsorbent | Freundlich isotherm parameters | Langmuir isotherm parameters | | | | (L/g) | · (L/mg) | |
| BK | 28.08 | 4.151 | 0.950 | 2.848 | 0.041 | 0.963 | BKN | 40.07 | 5.767 | 0.935 | 4.389 | 0.055 | 0.990 | BKNA | 30.78 | 3.582 | 0.927 | 1.740 | 0.014 | 0.919 | BK(NO) | 22.94 | 2.689 | 0.936 | 2.212 | 0.205 | 0.963 | BK(NO)A | 13.73 | 1.454 | 0.987 | 1.305 | 0.047 | 0.920 |
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, n—Freundlich isotherm constants; , —Langmuir isotherm constants, R—correlation coefficient.
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