Table 3 Pseudo-first-order and pseudo-second-order kinetic models for adsorption of MB on SiO2/PANI-SDS (0.02 g), pH 6 ± 0.1, T = 30 °C.
[MB]o (mg/L) | qe.exp (mg/g) | Pseudo-first-order model | qe.exp (mg/g) | Pseudo-second-order model | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
qe.cal (mg/g) | k min−1 | Chi2 | R2 | qe.cal (mg/g) | k mgg−1 min−1/2) | Chi2 | R2 | |||
3.47 | 6.047 | 8.099 | 0.187 | 0.437 | 0.93 | 6.047 | 9.218 | 0.027 | 0.209 | 0.96 |
11.10 | 14.88 | 17.538 | 0.126 | 0.517 | 0.98 | 14.88 | 20.61 | 0.007 | 0.104 | 0.99 |
11.64 | 17.83 | 18.836 | 0.064 | 0.379 | 0.99 | 17.836 | 23.42 | 0.002 | 0.398 | 0.99 |
