Table 4 Kinetic parameters for RBBR-DPSAC adsorption system at 30 °C.
Co (mg/L) | qe, exp (mg/g) | Pseudo-first order (PFO) | Pseudo-second order (PSO) | ||||||
|---|---|---|---|---|---|---|---|---|---|
qe, cal (mg/g) | k1 (min−1) | RMSE | R2 | qe, cal (mg/g) | k2 (g mg−1 min−1) | RMSE | R2 | ||
25 | 24.53 | 36.87 | 0.0227 | 10.11 | 0.9439 | 38.17 | 0.00025 | 42.57 | 0.9542 |
50 | 48.05 | 51.58 | 0.0115 | 0.9782 | 70.92 | 0.00011 | 0.9646 | ||
100 | 92.20 | 80.05 | 0.0069 | 0.9886 | 90.91 | 0.00016 | 0.9442 | ||
200 | 179.79 | 173.45 | 0.0064 | 0.9949 | 208.33 | 0.00004 | 0.9347 | ||
250 | 212.57 | 197.31 | 0.0060 | 0.9781 | 204.08 | 0.00005 | 0.8805 | ||
300 | 248.53 | 253.81 | 0.0063 | 0.9834 | 344.83 | 0.00001 | 0.7904 | ||
