Table 2. Comparison of Uptake Values between the CNC/ZnO Nanocomposite and Different Adsorbents in Methylene Blue Removal.
| adsorbent product | MB treated | time (min) | temp. (°C) | qm (mg/g) | references |
|---|---|---|---|---|---|
| CNC/ZnO nanocomposite | MB | 1440 | 45 | 64.93* | this study |
| β-cyclodextrin–chitosan nanoparticles | MB | 50 | 30 | 2.78 | (44) |
| Celite-sodium alginate bio-polymer | MB | 120 | 60 | 7.5 | (45) |
| λ-carrageenan-calcium phosphate-sodium alginate biopolymer | MB | 120 | 60 | 6.8 | (45) |
| carboxyl methylcellulose-sodium alginate biopolymer | MB | 120 | 60 | 6.5 | (45) |
| Moroccan cactus (Natural (NC)) | MB | 60 | 25 | 3.44 | (46) |
| dried cactus (DC) | MB | 60 | 25 | 14.04 | (46) |
| sago waste (Metroxylon spp.) | MB | 2880 | 25 | 36.6 | (47) |
| sugar scum | MB | 600 | 25 | 24.52 | (48) |