Table 5.
The adsorption capacity of MB dye and the influence of geopolymer developed from different industrial wastes previous works and in this study.
| Adsorbent Type | MB conc | Adsorbent dose | pH | Contact time | Adsorption capacity | References |
|---|---|---|---|---|---|---|
| -Fly ash geopolymer monoliths | 1 – 50 mg/L | 0.11–0.55 g | 2—12 | 30 h | 15.4 mg/g | 63 |
| -Fly Ash –based geopolymer spheres | (10 – 250) mg/L | (1–2.5) g/ 0.2 L | – | 24 h | 30.1 mg/g | 64 |
| -Clay and rice husk geopolymer | 25 mg/L | 0.1 g | 3 | 20–80 min | 15.95, 14.9, and 20.2 mg/g | 65 |
| -Red mud and rice husk based geopolymer composite8 | (20- 120) mg/L | 0.1 g | 8 | 180 min | 6.59 – 10.74 mg/g | 66 |
| -Partially dealuminated metakaolin and Metakaolin | (10–60) mg | 0.35 | 7 | 60 min | 8 mg/g | This study |