Research Article
[Retracted] Activated Sawdust-Based Adsorbent for the Removal of Basic Blue 3 and Methylene Green from Aqueous Media
Table 2
Comparison of various parameters determined through different kinetic equations for MG and BB-3 dye adsorption on activated sawdust.
| | Kinetic model parameters | MG | BB-3 | | Adsorption temperatures | | 283 K | 293 K | 303 K | 283 K | 293 K | 303 K |
| | Pseudofirst order | (mol/g) | -0.07 | -0.02 | -0.01 | -0.05 | -0.04 | -0.07 | | (g/mol.K-1) | -5.93 | -6.82 | 6.81 | -5.86 | 0.07 | -6.76 | | 0.94 | 0.96 | 0.91 | 0.87 | -6.76 | 0.92 |
| | Pseudosecond order | (mol/g) | 101148 | 100858 | 101109 | 101342 | 0.98 | 99976 | | (g/mol.K-1) | 28332 | 11673 | 9761.7 | 64422 | 0.92 | 4264.9 | | 1 | 1 | 1 | 0.99 | 99906 | 1 |
| | Intraparticle diffusion | (mg/g min) | 1-07 | 3-08 | 3-08 | 3-07 | 99976 | 2-08 | | Intercept | 9-06 | 1-05 | 1-05 | 8-06 | 10348 | 1-05 | | 0.94 | 0.96 | 0.86 | 0.76 | 4264.9 | 0.99 |
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The value is closed to unity for pseudosecond order; therefore, pseudosecond order can better explain the results of kinetic studies. |
