Table 5.
Comparison of maximum adsorption capacities obtained for different adsorbents.
| Adsorbent | pH | Maximum adsorption capacities, qmax [mg/g] | Reference |
|---|---|---|---|
| Amberlite XAD 2000 | 2 | 12.3 | 45 |
| Dowex M 4195 | 4 | 8.1 | 46 |
| Sargassum sp. | 2 to 10 | 0.17 | 47 |
| Turbinaria conoides | 2 | 0.18 | 48 |
| Fucus vesiculosus | 7 | 0.35 | 49 |
| Ca-alginate beads | 2 | 1.47 | 50 |
| L-cysteine impregnated alginate capsules | 5 | 1.51 | 51 |
| Sulphuric acid cross-linked alginate powder | 1 | 5.64 | 52 |
| Thiourea modified alginate powder | — | 6.40 | 53 |
| Porous epichlorohydrin/ thiourea modified alginate (PETA) | 1 | 1.97 | 54 |
| Amberlite XAD 7 | <4 | 1 | Present study |
| Amberlite XAD 7-L-glutamic acid | <4 | 14.2 | Present study |