Research Article
Magnetite Functionalized Nigella Sativa Seeds for the Uptake of Chromium(VI) and Lead(II) Ions from Synthetic Wastewater
Table 2
Isotherms studies and their parameters.
| Isotherms | FNS | PNS | Pb(II) | Cr(VI) | Pb(II) | Cr(VI) |
| Langmuir | (mgg-1) | 19.99 | 10.21 | 12.06 | 15.11 | (Lmg-1) | 6.6301 | 0.0412 | 1.0751 | 0.0642 | | 0.9031 | 0.9973 | 0.9355 | 0.9952 | Freundlich | | 22.783 | 48.654 | 19.791 | 4.425 | (mg(1-n) Ln g-1) | 0.730 | 6.589 | 0.684 | 1.322 | | 0.9961 | 0.893 | 0.9975 | 0.8869 | Experimental () (mg/g) | 29.80 | 7.80 | 29.47 | 15.74 |
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