Review Article
Application of Iron Oxide Nanomaterials for the Removal of Heavy Metals
Table 2
Application of iron oxides nanaparticles for removal of arsenic according to the Langmuir isotherm.
| Name of IONPs | Method of synthesis | Size (nm) | BET surface area m2/g | Sorption capacity of As (III) mg/g | Sorption capacity of As (V) mg/g | References |
| -Fe2O3 | Chemical coprecipitation | 7–12 | 168.73 | 67.02 (30°C) | 95.37 (350°C) | [61] | Fe3O4 | Chemical coprecipitation | 17 | — | 8.2a and 5.68b | 6.71a and 4.78b | [62] | -Fe2O3 | Chemical coprecipitation | 12 | — | 1.25a and 20b | 4.6a and 4.9b | [62] | -Fe2O3 | Solvent thermal | 5 | 162 | 95 | 47 | [63] | -Fe2O3 | Wet chemical | 4 | 100 | — | 45 | [64] | Magnetite (55.8%) and Maghemite (44.2%) | Iron wires | 34 | 12 | 2.9 | 3.05 | [65] |
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1 h contact time, b24 h contact time.
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