Table 2.
Effect of contact time on bioadsorption of malachite green dye by alginate, alginate silver nanoparticles, Sargassum latifolium aqueous extract nanoparticles and aqueous extract
| Contact time (min) | Co (mg) | Treatments | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Alginate nanoparticles (0.01 g) | Alginate (0.01 g) | Sargassum latifolium aqueous extract nanoparticles (0.01 g) | Sargassum latifolium aqueous extract (0.01 g) | ||||||||||
| Ce (mg) | Q (mg/g) | Removal rate | Ce (mg) | Q (mg/g) | Removal rate | Ce (mg) | Q (mg/g) | Removal rate | Ce (mg) | Q (mg/g) | Removal rate | ||
| 30 | 100 | 91 ± 0.17 | 86.6 ± 1 | 8.5 ± 1 | 96 ± 3 | 36 ± 1 | 3.5 ± 0.5 | 94 ± 5 | 56 ± 1 | 5.5 ± 0.7 | 98 ± 1.7 | 16 ± 2 | 0.5 ± 0.09 |
| 60 | 100 | 78 ± 1 | 217 ± 11 | 20 ± 3 | 88 ± 2 | 117 ± 10 | 12 ± 2 | 81 ± 5 | 183 ± 10 | 18 ± 2 | 93 ± 0.1 | 63 ± 1 | 6 ± 0.9 |
| 90 | 100 | 67 ± 2 | 328 ± 5 | 32 ± 5 | 77 ± 3 | 228 ± 5 | 22 ± 3 | 70 ± 9 | 298 ± 20 | 29 ± 3 | 87 ± 3 | 128 ± 6 | 13 ± 1.2 |
| 120 | 100 | 52 ± 1 | 477 ± 20 | 47 ± 9 | 69 ± 2 | 307 ± 10 | 30 ± 0.9 | 59 ± 5 | 407 ± 20 | 40 ± 6 | 79 ± 3 | 208 ± 15 | 21 ± 5 |
| 150 | 100 | 38 ± 2 | 612 ± 23 | 61 ± 5 | 58 ± 0.8 | 412 ± 15 | 41 ± 2 | 50 ± 7 | 492 ± 40 | 49 ± 5 | 69 ± 5 | 313 ± 20 | 31 ± 0.2 |
| 180 | 100 | 28 ± 0.01 | 717 ± 18 | 71 ± 10 | 40 ± 0.5 | 597 ± 16 | 59 ± 0.7 | 36 ± 1 | 637 ± 50 | 63 ± 2 | 48 ± 6 | 518 ± 12 | 52 ± 5 |
| 220 | 100 | 30.8 ± 1 | 691 ± 25 | 69 ± 2 | 41 ± 0.6 | 581 ± 20 | 58 ± 2 | 38 ± 1 | 611 ± 26 | 61 ± 5 | 51 ± 4 | 492 ± 26 | 49 ± 2 |
| 250 | 100 | 30.1 ± 0.12 | 698 ± 10 | 69 ± 5 | 41 ± 0.12 | 588 ± 12 | 58 ± 5 | 39 ± 0.12 | 608 ± 11 | 60 ± 9 | 53 ± 0.1 | 468 ± 12 | 47 ± 3 |
Co: intial malachite green dye concentrations pH: 7
Ce: MG concentrations (mg) after incubation period (250 min) Q: biosorption capacity