Table 4.
Optimal adsorption conditions and maximum adsorption capacity of PDA adsorbent materials.
| Adsorbent | Adsorbate | Optimal temperature | Optimal pH | Initial concentration of pollutants (mg/L) | Qm (mg/g) | Adsorption isotherm (R2) |
|---|---|---|---|---|---|---|
| MWNCT-PDA/GO | Pb(II) Cu(II) | 298.15K | 7 | 400 400 |
350.9 318.5 |
0.996 0.995 |
| Fe3O4@PDA- MoS2 | Pb(II) | 293.15K | 5.5 | 200 | 508.9 | 0.995 |
| h-Fe3O4@Au/PDA | U(VI) | 313.15K | 7 | 85 | 90 | 0.999 |
| AM/PDA microspheres | U(VI) | 293.15K | 5 | 160 | 250.7 | 0.980 |
| MXene-PDA-Bi6O7 | I- | 348.15K | 5 | 25 | 60 | 0.977 |
| MXene-PDA-Ag2OX | I- | 300.15K | 5 | 30 | 70 | 0.954 |
| PP/PDA | I- | 333.15K | 7 | / | 80 | 0.990 |
| PDA/PVDF | Cu(II) | 298.15K | / | / | 26.7 | / |