Table 8.
Comparison between adsorption values for CV by using different adsorbents.
| Adsorbent | Form | Maximum capacity (mg/g) | Operational condition | Reference | ||||
|---|---|---|---|---|---|---|---|---|
| Dose | Time | Initial concentration | pH | Temperature | ||||
| Banana stem biochar (Pyrolyzed at 350 °C) | Powder | 208.33 | 25 mg | 60 min. | 100 g/L | 3 pH | 25 °C | 73 |
| The acid-activated volcanic ash/rice husk ash-based geopolymer (GPa) | Powder | 14.66 | 0.2 g | 60 min. | 60 g/L | 6 pH | 25 °C | 74 |
| Mesoporous geopolymer using metakaolin and rice husk ash | Powder | 276.9 | 1.5 g/l | 120 | 50 mg/L | 4.5 pH | 54.85 °C | 75 |
| Royal palm leaf sheath powder | Powder | 344.83 | 40 mg | 60 min. | 100 g/L | 6 pH | 30 °C | 76 |
| Ball milled Royal palm leaf sheath powder | Powder | 454.5 | 40 mg | 60 min. | 100 g/L | 6 pH | 30 °C | 76 |
| Optimized geopolymer (GPO) | Powder | 69.19 | 1.5 g/L | 120 | 20–140 mg/L | 6.5 pH | 20 °C | 77 |
| Vermiculite based geopolymer | Powder | 29.6 | 0.3 g | 15 min. | 30 g/L | 8 pH | 30 °C | 28 |
| Moringa seeds powder slag based geopolymer (SM3) | Powder | 322.58 | 0.01 g | 30 min. | 120 g/L | 8 pH | 25 °C | 26 |
| MLA6 | Powder | 370.370 | 0.01 g | 30 min. | 120 g/L | 8 pH | 25 °C | Present study |
| SSF6 | Powder | 434.782 | 0.01 g | 30 min. | 120 g/L | 8 pH | 25 °C | Present study |