| Adsorbent | | Reference |
| 3A zeolite prepared from venezuelan kaolin | 14.64 | [1] |
| Acid treated maize tassel biomass | 37.31 | [6] |
| Bael leaves (Aegle marmelos) | 104.00 | [10] |
| Chemically treated rubber leaf powder | 95.30 | [12] |
| Fallen Cinnamomum camphora leaves | 73.15 | [13] |
| Castor leaf | 67.69 | [14] |
| Dobera leaves | 83.00 | Present study |