Research Article
Adsorptive Removal of Acid Blue 80 Dye from Aqueous Solutions by Cu-TiO2
Table 3
Effect of the initial AB80 concentration on the kinetics parameters of the models for AB80 adsorption onto Cu-TiO2.
(a) |
| mg L−1 | mg g−1 | min | Elovich | Fractional power | mg g−1 min−1 | g mg−1 | | SSE | RMSE | mg min−1 | min−1 | | SSE | RMSE |
| 10 | 3.395 | 21 | 0.803 ± 0.290 | 1.310 ± 0.170 | 0.978 | 0.320 | 0.146 | 1.010 ± 0.20 | 0.277 ± 0.053 | 0.95 | 0.752 | 0.224 | 20 | 7.725 | 21 | 11.50 ± 6.260 | 0.850 ± 0.098 | 0.983 | 1.063 | 0.250 | 3.610 ± 0.40 | 0.175 ± 0.029 | 0.96 | 2.087 | 0.350 | 30 | 11.60 | 21 | 2.842 ± 1.320 | 0.380 ± 0.063 | 0.957 | 8.664 | 0.675 | 3.590 ± 0.84 | 0.269 ± 0.061 | 0.91 | 17.86 | 0.969 | 40 | 12.67 | 24 | 8.587 ± 5.740 | 0.435 ± 0.074 | 0.953 | 9.929 | 0.722 | 5.330 ± 0.97 | 0.204 ± 0.048 | 0.92 | 16.76 | 0.939 | 50 | 14.00 | 27 | 21.43 ± 20.30 | 0.473 ± 0.090 | 0.946 | 12.46 | 0.809 | 6.740 ± 1.13 | 0.168 ± 0.045 | 0.91 | 18.77 | 0.994 | 70 | 17.06 | 30 | 47.79 ± 46.21 | 0.468 ± 0.813 | 0.963 | 10.26 | 0.735 | 8.280 ± 1.08 | 0.149 ± 0.035 | 0.94 | 15.55 | 0.905 | 90 | 18.46 | 30 | 32.61 ± 36.42 | 0.356 ± 0.803 | 0.932 | 29.03 | 1.236 | 9.340 ± 1.60 | 0.163 ± 0.048 | 0.90 | 41.34 | 1.475 | 120 | 18.71 | 40 | 77.24 ± 117.1 | 0.422 ± 0.107 | 0.927 | 27.62 | 1.206 | 10.10 ± 1.64 | 0.139 ± 0.005 | 0.90 | 35.94 | 1.375 | 150 | 19.43 | 40 | 74.65 ± 92.25 | 0.412 ± 0.080 | 0.949 | 19.56 | 1.015 | 10.14 ± 1.40 | 0.142 ± 0.039 | 0.93 | 26.95 | 1.191 |
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(b) |
| mg L−1] | Pseudo-first-order | Pseudo-second-order | min−1 | mg g−1 | | SSE | RMSE | g mg−1 min−1 | mg g−1 | mg g−1 min−1 | | SSE | RMSE |
| 10 | 0.071 ± 0.012 | 3.278 ± 0.154 | 0.971 | 0.425 | 0.168 | 0.028 ± 0.004 | 3.782 ± 0.13 | 0.400 | 0.991 | 0.135 | 0.09 | 20 | 0.135 ± 0.135 | 7.305 ± 0.306 | 0.944 | 3.622 | 0.462 | 0.022 ± 0.004 | 8.016 ± 0.19 | 1.414 | 0.990 | 0.630 | 0.19 | 30 | 0.076 ± 0.005 | 11.19 ± 0.210 | 0.993 | 1.269 | 1.384 | 0.015 ± 0.002 | 12.74 ± 0.25 | 2.435 | 0.996 | 0.296 | 0.47 | 40 | 0.105 ± 0.093 | 12.39 ± 0.280 | 0.984 | 2.424 | 3.411 | 0.014± 0.0004 | 13.83 ± 0.31 | 2.678 | 0.992 | 1.661 | 0.29 | 50 | 0.134 ± 0.013 | 13.32 ± 0.250 | 0.987 | 1.403 | 3.080 | 0.012 ± 0.002 | 14.91 ± 0.23 | 2.668 | 0.995 | 1.153 | 0.24 | 70 | 0.165 ± 0.330 | 14.97 ± 0.022 | 0.976 | 6.476 | 0.584 | 0.012 ± 1.000 | 17.71 ± 0.23 | 3.763 | 0.997 | 1.141 | 0.25 | 90 | 0.145 ± 0.012 | 17.99 ± 0.270 | 0.990 | 4.029 | 0.461 | 0.011 ± 0.002 | 19.72 ± 0.41 | 4.278 | 0.994 | 3.708 | 0.44 | 120 | 0.177 ± 0.017 | 17.47 ± 0.270 | 0.989 | 4.235 | 0.472 | 0.011 ± 0.002 | 19.80 ± 0.37 | 4.312 | 0.994 | 3.499 | 0.43 | 150 | 0.175 ± 0.022 | 17.74 ± 0.360 | 0.980 | 7.540 | 0.630 | 0.011 ± 0.001 | 19.83 ± 0.30 | 4.326 | 0.995 | 2.171 | 0.33 |
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