Table 3 Adsorption isotherm model analysis for BB41 and EBT.
Isotherm models | Â | BB41 | EBT |
|---|---|---|---|
Dubinin-Radushkevich (D-R) isotherm | intercept | 2.515 | 1.908 |
slope | –9.98E + 08 | –3.53E + 07 | |
β (mol2/k2 J2) | 9.98E + 08 | 3.53E + 07 | |
E (KJ/mol) | 2.24E-05 | 1.19E-04 | |
qm | 12.366 | 6.739 | |
R2 | 0.933 | 0.887 | |
Freundlich isotherm | Intercept | 2.216 | 0.934 |
slope | 0.896 | 0.439 | |
1/nf | 0.896 | 0.439 | |
Kf | 9.169 | 2.544 | |
R2 | 0.985 | 0.935 | |
Langmuir isotherm | Intercept | 0.017 | 0.11 |
slope | 0.0914 | 0.314 | |
Qmax | 58.48 | 9.09 | |
KL | 0.187 | 0.35 | |
RL | 0.15 | 0.087 | |
R2 | 0.995 | 0.995 | |
Temkin isotherm | intercept | 9.478 | 2.426 |
slope | 5.298 | 1.943 | |
BT(J/mol) | 5.298 | 1.943 | |
KT L/mg) | 5.983 | 3.485 | |
R2 | 0.921 | 0.970 |