Research Article
Metal-Organic Framework MIL-53(Fe) as an Adsorbent for Ibuprofen Drug Removal from Aqueous Solutions: Response Surface Modeling and Optimization
Table 6
Nonlinear kinetic constants for the adsorption of IBU over MIL-53(Fe).
| | Kinetic models | Equation | Parameters | Value |
| | Pseudo-first-order | | k1 (min−1) | 0.0496 | | Q1 (mg/g) | 7.87 | | MRE (%) | 5.29 | | SSE | 0.83 | | (Radj)2 | 0.983 |
| | Pseudo-second-order |
| k2 (g/mg·min) | 0.0063 | | Q2 (mg/g) | 9.28 | | H (mg/g·min) | 0.543 | | MRE (%) | 3.67 | | SSE | 0.39 | | (Radj)2 | 0.992 |
| | Elovich | | α (mg/g·min) | 1.1 | | β (g/mg) | 0.5 | | MRE (%) | 3.15 | | SSE | 7.44 | | (Radj)2 | 0.989 |
| | Bangham | | kB (mL/(g/L)) | 1.98 | | αB | 0.30 | | MRE (%) | 5.02 | | SSE | 13.05 | | (Radj)2 | 0.981 |
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