Table 4 Computed kinetic parameters for biosorptive removal of BF dye by Gel@GO-F-ZrSiO4@Gel.
Kinetic model | BF dye (mg/L) | |
---|---|---|
5.0 mg L-1 | 10.0 mg L-1 | |
Pseudo-first order | ||
qe (mg g−1)(exp.) | 2.273 | 2.353 |
qe (mg g−1)(calc.) | 6.434 | 11.274 |
k1 (min.−1) | 0.09 | 0.032 |
R2 | 0.893 | 0.982 |
Pseudo-second order | ||
qe (mg g−1)(exp.) | 6.4516 | 11.111 |
qe (mg g−1)(calc.) | 6.4337 | 11.274 |
k2 (min.−1) | 0.8008 | 0.076 |
R2 | 0.999 | 0.990 |
Intraparticle diffusion | ||
Kid(mg.g−1 min-1/2) | 0.419 | 0.113 |
C | 8.372 | 5.854 |
R2 | 0.805 | 0.849 |
Elovich | ||
α (mg g−1 min−1) | 21868999.63 | 9.877*1014 |
β (mg g−1) | 2.016 | 6.173 |
R2 | 0.632 | 0.868 |