Table 1.
Isotherm Constants | Temperature (K) | ||
---|---|---|---|
| |||
298 | 318 | 338 | |
Langmuir | |||
Q max (mg·g−1) | −90.909 | −125 | −90.909 |
b (L·mg−1) | −0.004 | −0.003 | −0.004 |
RL | 1.65 | 1.42 | 1.59 |
R2 | 0.541 | 0.557 | 0.512 |
| |||
Freundlich | |||
KF (mg·g−1(L·mg−1)1/n) | 2.244 | 0.475 | 0.404 |
n | 1.025 | 1.009 | 0.975 |
1/n | 0.976 | 0.991 | 1.026 |
R2 | 0.999 | 0.995 | 0.999 |
| |||
Temkin | |||
KT (L·mg−1) | 0.071 | 0.071 | 0.071 |
B | 20.18 | 19.6 | 18.54 |
R2 | 0.962 | 0.948 | 0.967 |
| |||
Dubinin-Radushkevich | |||
KDR (mol2 kJ2) | 0.023 | 0.024 | 0.021 |
E (kJ·mol−1) | 4.662 | 4.564 | 4.879 |
R2 | 0.981 | 0.992 | 0.978 |