Table 3.
Adsorption capacity of various clay materials towards Pb(II).
| Adsorbent | Adsorption Capacity (mg/g) | References |
|---|---|---|
| Allophane | 90.17 | This study |
| Kaolinite | 11.10 | [37] |
| Turkish kaolinite clay | 31.75 | [38] |
| Modified kaolinite clay | 32.20 | [39] |
| Hal/alginate nanocomposite beads | 325.00 | [40] |
| Modified montmorillonite | 131.58 | [41] |
| Tunisian smectitic clay | 25.00 | [42] |
| Mt-chitosan composite | 79.19 | [43] |
| Natural beidellite clay | 86.90 | [44] |
| Beidellite | 24.40 | [44] |
| Turkish illitic clay | 53.76 | [45] |
| Hematite | 16.34 | [46] |
| Bentonite/thiourea-formaldehyde composite | 14.38 | [47] |
| Natural bentonite | 85.47 | [48] |
| Volcanic tuff | 16.81 | [49] |
| Silicon nanotube | 42.85 | [50] |
| Bentonite | 28.00 | [51] |
| Illite-smectite clay | 131.23 | [52] |
| Shanghai silty clay | 26.46 | [53] |
| Modified bentonite | 123.30 | [54] |