Removal of uranium(VI) from water using hydroxyapatite coated activated carbon powder nanocomposite
| Autor: | Vandana Pulhani, Bikash Muduli, Sabyasachi Rout, Ashok Kumar |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Water Pollutants
Radioactive Environmental Engineering Materials science Carbonates chemistry.chemical_element 02 engineering and technology 010402 general chemistry 01 natural sciences Nanocomposites Water Purification medicine Humic Substances Nanocomposite Osmolar Concentration General Medicine Hydrogen-Ion Concentration Models Theoretical Uranium 021001 nanoscience & nanotechnology 0104 chemical sciences Durapatite Chemical engineering chemistry Chemisorption Charcoal Adsorption Powders 0210 nano-technology Activated carbon medicine.drug |
| Zdroj: | Journal of Environmental Science and Health, Part A. 55:596-605 |
| ISSN: | 1532-4117 1093-4529 |
| Popis: | Synthesis of hydroxyapatite coated activated carbon nanocomposite was carried out by in-situ chemical precipitation method. Different characterizations confirm that, hydroxyapatite successfully coated over activated carbon powder. Extensive sorption studies of U(VI) on the nanocomposite were conducted to know the effect of contact time, humic acid, carbonate, ionic strength and pH. The study revealed that, the composite material is a more efficient sorbent for U(VI) compared to precursors, which removes U(VI) ion without altering physicochemical properties of water. Sorption exhibits multilayer adsorption on heterogeneous surface and follows chemisorptions. Practical applicability of the material was demonsteted by spiking tap water with U(VI) ion at three different initial concentrations (50, 100 and 150 µg L |
| Databáze: | OpenAIRE |
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