Table 3.
Kinetic parameters for adsorption of dyes on PA-12/PC nanocomposite.
| Dye | Kinetic | Parameters | 5 mg/L | 30 mg/L | 75 mg/L | 100 mg/L | 125 mg/L | 150 mg/L | 200 mg/L |
250 mg/L |
|---|---|---|---|---|---|---|---|---|---|---|
| CR | PFO | K1 | 0.027 | 0.026 | 0.029 | 0.032 | 0.023 | 0.028 | 0.034 | 0.032 |
| qecal | 2.800 | 7.232 | 29.58 | 34.60 | 28.58 | 29.56 | 27.36 | 40.73 | ||
| qeexp | 4.790 | 21.50 | 51.73 | 56.51 | 63.61 | 76.13 | 86.7 | 118.4 | ||
| R2 | 0.908 | 0.919 | 0.973 | 0.982 | 0.874 | 0.917 | 0.971 | 0.991 | ||
| PSO | K2 | 0.022 | 0.011 | 0.002 | 0.001 | 0.002 | 0.002 | 0.003 | 0.002 | |
| qecal | 5.020 | 21.90 | 53.76 | 59.17 | 65.78 | 78.12 | 87.71 | 120.4 | ||
| qeexp | 4.790 | 21.50 | 51.73 | 56.51 | 63.76 | 76.13 | 86.70 | 118.4 | ||
| R2 | 0.998 | 0.999 | 0.999 | 0.998 | 0.999 | 0.999 | 0.999 | 0.999 | ||
| IPD | Kid | 0.380 | 0.968 | 3.745 | 4.145 | 3.963 | 3.918 | 3.459 | 5.027 | |
| C | 1.355 | 12.641 | 17.72 | 18.17 | 27.49 | 40.80 | 56.07 | 73.08 | ||
| R2 | 0.869 | 0.924 | 0.954 | 0.944 | 0.944 | 0.931 | 0.934 | 0.964 | ||
| Elovich model | A | 0.782 | 11.166 | 12.331 | 11.69 | 21.65 | 35.19 | 51.48 | 66.10 | |
| B | 0.810 | 2.077 | 7.924 | 8.970 | 8.435 | 8.262 | 7.149 | 10.54 | ||
| R2 | 0.917 | 0.944 | 0.947 | 0.950 | 0.946 | 0.940 | 0.936 | 0.950 | ||
| BG | PFO | K1 | 0.032 | 0.029 | 0.029 | 0.035 | 0.031 | 0.022 | 0.035 | 0.039 |
| qecal | 4.270 | 6.273 | 31.196 | 32.96 | 30.26 | 40.15 | 32.96 | 34.85 | ||
| qeexp | 4.550 | 18.5 | 47.81 | 53.1 | 57.44 | 71.10 | 84.33 | 101.7 | ||
| R2 | 0.972 | 0.841 | 0.906 | 0.961 | 0.935 | 0.973 | 0.981 | 0.989 | ||
| PSO | K2 | 0.031 | 0.0144 | 0.0023 | 0.002 | 0.002 | 0.001 | 0.003 | 0.003 | |
| qecal | 4.3 | 18.86 | 50 | 55.24 | 59.52 | 74.62 | 86.20 | 103.0 | ||
| qeexp | 4.55 | 18.5 | 47.81 | 53.10 | 57.44 | 71.10 | 84.33 | 101.7 | ||
| R2 | 0.994 | 0.999 | 0.999 | 0.999 | 0.999 | 0.998 | 0.999 | 0.999 | ||
| IPD | Kid | 0.537 | 0.91 | 4.009 | 4.195 | 3.875 | 3.998 | 4.075 | 4.109 | |
| C | − 0.269 | 10.516 | 12.412 | 16.17 | 21.17 | 22.11 | 48.17 | 65.46 | ||
| R2 | 0.941 | 0.770 | 0.898 | 0.900 | 0.902 | 0.914 | 0.934 | 0.940 | ||
| Elovich model | A | − 1.003 | 9.207 | 7.005 | 10.62 | 16.17 | 13.92 | 42.74 | 60.18 | |
| B | 1.122 | 1.901 | 8.301 | 8.648 | 8.311 | 11.34 | 8.435 | 8.436 | ||
| R2 | 0.937 | 0.856 | 0.921 | 0.920 | 0.934 | 0.960 | 0.936 | 0.935 | ||
| MB | PFO | K1 | 0.023 | 0.041 | 0.025 | 0.024 | 0.024 | 0.032 | 0.020 | 0.029 |
| qecal | 4.030 | 17.49 | 29.24 | 37.55 | 34.28 | 37.35 | 38.77 | 39.69 | ||
| qeexp | 4.170 | 20.10 | 41.22 | 50.5 | 54.68 | 60.25 | 82.6 | 102.50 | ||
| R2 | 0.967 | 0.977 | 0.973 | 0.962 | 0.930 | 0.951 | 0.921 | 0.923 | ||
| PSO | K2 | 0.016 | 0.003 | 0.0014 | 0.001 | 0.001 | 0.001 | 0.001 | 0.002 | |
| qecal | 4.1 | 21.78 | 40.05 | 56.64 | 57.80 | 62.89 | 85.47 | 105.26 | ||
| qeexp | 4.17 | 20.1 | 41.22 | 50.5 | 54.68 | 60.25 | 82.6 | 102.5 | ||
| R2 | 0.981 | 0.994 | 0.998 | 0.997 | 0.998 | 0.999 | 0.998 | 0.999 | ||
| IPD | Kid | 0.517 | 2.145 | 3.726 | 4.818 | 4.500 | 4.879 | 5.049 | 5.3131 | |
| C | − 0.710 | 1.607 | 6.603 | 5.442 | 12.77 | 16.77 | 34.02 | 55.042 | ||
| R2 | 0.979 | 0.882 | 0.974 | 0.968 | 0.957 | 0.925 | 0.963 | 0.8929 | ||
| Elovich model | A | − 1.552 | − 1.031 | 0.863 | 2.170 | 5.664 | 10.10 | 25.25 | 47.759 | |
| B | 1.137 | 4.335 | 8.055 | 10.49 | 9.784 | 10.16 | 11.36 | 11.159 | ||
| R2 | 0.960 | 0.905 | 0.956 | 0.954 | 0.953 | 0.934 | 0.958 | 0.925 | ||
| MR | PFO | K1 | 0.032 | 0.044 | 0.031 | 0.026 | 0.024 | 0.025 | 0.029 | 0.0269 |
| qecal | 4.77 | 32.43 | 32.38 | 36.14 | 45.47 | 49.78 | 62.01 | 62.37 | ||
| qeexp | 4.23 | 27.70 | 62.50 | 72.5 | 84.2 | 97.4 | 119.2 | 129.5 | ||
| R2 | 0.989 | 0.899 | 0.954 | 0.963 | 0.978 | 0.988 | 0.995 | 0.9863 | ||
| PSO | K2 | 0.003 | 0.0070 | 0.002 | 0.001 | 0.001 | 0.001 | 0.001 | 0.0011 | |
| qecal | 5.37 | 28.49 | 64.51 | 75.18 | 87.71 | 101.0 | 123.4 | 133.3 | ||
| qeexp | 4.23 | 27.70 | 62.5 | 72.50 | 84.20 | 97.40 | 119.2 | 129.5 | ||
| R2 | 0.951 | 0.999 | 0.999 | 0.999 | 0.998 | 0.999 | 0.999 | 0.999 | ||
| IPD | Kid | 0.55 | 1.982 | 4.229 | 4.618 | 5.741 | 6.250 | 7.629 | 7.639 | |
| C | − 0.821 | 11.183 | 24.80 | 29.84 | 30.19 | 39.03 | 49.03 | 58.24 | ||
| R2 | 0.994 | 0.733 | 0.906 | 0.956 | 0.979 | 0.985 | 0.985 | 0.9847 | ||
| Elovich model | A | − 1.598 | 8.820 | 18.874 | 22.72 | 20.97 | 29.30 | 37.81 | 46.49 | |
| B | 1.165 | 3.953 | 8.848 | 9.961 | 12.57 | 13.56 | 16.28 | 16.536 | ||
| R2 | 0.950 | 0.807 | 0.930 | 0.958 | 0.952 | 0.958 | 0.958 | 0.9566 |