Synthesis and properties of alumina-hydroxyapatite composites from natural phosphate for phenol removal from water
| Autor: | Abdelaziz Laghzizil, C. El Bekkali, Jean-Michel Nunzi, A. Saoiabi, K. Bouiahya, I. Es-saidi, Didier Robert |
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| Rok vydání: | 2019 |
| Předmět: |
Alumina
02 engineering and technology 010402 general chemistry 01 natural sciences Hydroxyapatite chemistry.chemical_compound Colloid and Surface Chemistry Adsorption Specific surface area Materials Chemistry Phenol Surface charge Physical and Theoretical Chemistry Composite material Composites Aqueous solution Nanocomposite technology industry and agriculture Sorption equipment and supplies 021001 nanoscience & nanotechnology Phosphate 0104 chemical sciences Surfaces Coatings and Films chemistry 0210 nano-technology Biotechnology |
| Zdroj: | Colloid and Interface Science Communications. 31:100188 |
| ISSN: | 2215-0382 |
| DOI: | 10.1016/j.colcom.2019.100188 |
| Popis: | Phenol is very abundant in the aquatic environment and therefore requires an effective treatment using porous and low-cost adsorbents. Alumina-hydroxyapatite composites were prepared from natural phosphate ore in the presence of Al 3+ ions via a wet-chemical method. Porous composites were characterized and the Al-surface modification was produced by facile and inexpensive route to uptake adjacent toxic species. Supplementary active sites on their surface may improve their phenol remediation. Nanocomposites exhibit higher phenol sorption rates than pure hydroxyapatite. It is concluded that the specific surface area, surface charge and Al content are suitable for phenol removal from aqueous solution using Alumina-hydroxyapatite composites. The results show that the retention power of these composites depends on a complex interaction between intermolecular and molecule-solid interactions. These findings are relevant to better understand the contribution of alumina content in Alumina-hydroxyapatite composites to the fate and uptake of phenol from aquatic environments. |
| Databáze: | OpenAIRE |
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