Research Article
Enhanced Adsorption of Selenium Ions from Aqueous Solution Using Iron Oxide Impregnated Carbon Nanotubes
Table 3
Adsorption capacity of different materials for adsorption of selenium from water.
| Type of adsorbent | Experimental conditions | Max. adsorption capacity (mg/g) | Reference |
| Iron oxide nanoparticle | pH = 4, initial concentration = 0.01 mg/L | 15.1 | [8] | Chitosan–clay composite | pH = 4, initial concentration = 0.1 mg/L, = 30°C | 18.4 | [15] | Iron-coated GAC | pH = 2–8, initial concentration = 2 mg/L, = 45°C | 2.89 | [38] | Nanocrystalline hydroxyapatite | pH = 5, initial concentration = 0.01 mg/L, = 30°C | 1.94 | [39] | Aluminum oxide coated sand | pH = 4.80, initial concentration = 1.2 mM | 1.08 | [40] | Sulfuric acid treated rice husk | pH = 1.5, initial concentration = 100 mg/L = 45°C | 40.92 | [41] | Iron oxide impregnated CNTs | pH = 6, CNTs dosage = 10 mg and initial concentration = 1 ppm | 111 | This study |
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