Research Article
Near-Stoichiometric Adsorption of Phosphate by Silica Gel Supported Nanosized Hematite
Table 2
Parameters of the Langmuir equations and Fe
3+ :
molar ratio for adsorbates.
| Sample | , mg/g | , L/g | , mg/g | : molar ratio on the surface | Per 1 g of the sorbent | Per 1 g of hematite | Per 1 g of the sorbent | Per 1 g of hematite |
| pH 4 | A | | | | 12.2 | 1964 | 1 : 1.66 | B | | | | 8.4 | 672 | 1 : 0.56 |
| pH 8 | A | | | | 5.2 | 837 | 1 : 0.70 | B | | | | 5.2 | 416 | 1 : 0.35 |
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