Conversion of natural phosphate rock into mesoporous hydroxyapatite for heavy metals removal from aqueous solution

A macroporous natural phosphate rock and its converted mesoporous hydroxyapatite material were evaluated for heavy metal (Pb 2+, Cu 2+, Zn 2+) remediation. The modified phosphate was found to show better sorption capacities than natural rock, due to its larger specific surface area. However, the pre...

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Bibliographic Details
Published in:Colloids and surfaces. A, Physicochemical and engineering aspects Physicochemical and engineering aspects, 2010, Vol.362 (1), p.33-38
Main Authors: Asri, S. El, Laghzizil, A., Coradin, T., Saoiabi, A., Alaoui, A., M’hamedi, R.
Format: Article
Language:English
Subjects:
Chemical Sciences
Chemistry
Colloidal state and disperse state
Exact sciences and technology
General and physical chemistry
Heavy metal
Inorganic chemistry
Mesoporous apatite
Phosphate rock
Porous materials
Remediation
Surface physical chemistry
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Summary:A macroporous natural phosphate rock and its converted mesoporous hydroxyapatite material were evaluated for heavy metal (Pb 2+, Cu 2+, Zn 2+) remediation. The modified phosphate was found to show better sorption capacities than natural rock, due to its larger specific surface area. However, the presence of organic matter within the natural phosphate influences its affinity for the different metal ions, suggesting that this sorbent may find applications for the removal of specific elements.
ISSN:0927-7757
1873-4359
DOI:10.1016/j.colsurfa.2010.03.036