Table 2 Different kinetic model parameters for the removal of safranin dye by copolymer 6 and composite 7
Isotherm model | 6 | 7 |
|---|---|---|
Pseudo first-order kinetics model (safranine dye50ppm) | ||
k1 (min− 1) | 0.1088 | 0.0699 |
qe exp. (mg/g) | 17.5 | 18.2 |
qe cal (mg/g) | 17.7 | 18.6 |
R2 | 0.91 | 0.957 |
Pseudo second-order kinetics model (safranine dye50ppm) | ||
k2 (g/mg. min) | 0.0259 | 0.0192 |
qe exp. (mg/g) | 17.5 | 18.2 |
qe cal (mg/g) | 17.7 | 18.6 |
R2 | 0.9975 | 0.994 |