Hydroxyapatite with environmental applications

Journal Article · Thu May 15 04:00:00 EDT 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4876842· OSTI ID:22280348

Popa, C. L. ^[1]; Ciobanu, C. S.; Petre, C. C.; Jiga, G. ^[2]; Motelica-Heino, M. ^[3]; Iconaru, S. L. ^[4]

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1. National Institute of Materials Physics, P.O. Box MG 07, Bucharest, Magurele, Romania and Faculty of Physics, University of Bucharest, 405 Atomistilor, CP MG-1, 077125 Magurele (Romania)
2. University Politehnica of Bucharest, Faculty of Engineering and Management of Technological Systems, Department of Strength of Materials, 060032, Bucharest (Romania)
3. ISTO, UMR 7327 CNRS-Université d'Orléans, 1A rue de la Férollerie 45071 Orléans Cedex 2 (France)
4. National Institute of Materials Physics, P.O. Box MG 07, Bucharest, Magurele (Romania)

The aim of this study was to synthetize new nanoparticles based on methyltrimethoxysilane coated hydroxyapatite (MTHAp) for lead removal in aqueous solutions. The morphological and compositional analysis of MTHAp was investigated by scanning electron microscopy (SEM) equipped with an energy dispersive X-ray spectrometer (EDS). Removal experiments of Pb{sup 2+} ions were carried out in aqueous solutions with controlled concentration of Pb{sup 2+} and at fixed pH of 5. After the removal experiment of Pb{sup 2+} ions from solutions, porous hydroxyapatite nanoparticles were transformed into PbMTHAp-5 via the adsorption of Pb{sup 2+} ions followed by a cation exchange reaction. Our results demonstrate that the porous hydroxyapatite nanoparticles can be used as an adsorbent for removing Pb{sup 2+} ions from aqueous solution.

• OSTI ID: 22280348
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1599; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
ADSORBENTS
ADSORPTION
APATITES
AQUEOUS SOLUTIONS
CONCENTRATION RATIO
ION EXCHANGE
LEAD COMPOUNDS
LEAD IONS
NANOSTRUCTURES
PARTICLES
POROUS MATERIALS
SCANNING ELECTRON MICROSCOPY
X-RAY SPECTROSCOPY