Journal articles
Tetraethyl Orthosilicate Coated Hydroxyapatite Powders for Lead Ions Removal from Aqueous Solutions
Abstract : The goal of this study was to synthetize and characterize a porous material based on tetraethyl orthosilicate (TEOS) coated hydroxyapatite (HApTh) after removal experiments of Pb2+ ions from aqueous solutions. In order to study the morphology and composition, the samples obtained after removal experiments of Pb2+ ions from aqueous solution with the initial Pb2+ ion concentrations of the aqueous solutions were 0.1 g⋅L−1 (HApTh-50) and 0.9 g⋅L−1 (HApTh-450) have been investigated by scanning electron microscopy (SEM) equipped with an energy dispersive X-ray spectrometer (EDS), Fourier transforminfrared spectroscopy (FTIR), and transmission electron microscopy (TEM). Removal experiments of Pb2+ ionswere carried out in aqueous solutions with controlled concentration of Pb2+. After the removal experiment of Pb2+ ions from solutions, porous hydroxyapatite nanoparticles were transformed into HApTh-50 and HApTh-450 due to the adsorption of Pb2+ ions followed by a cation exchange reaction. The obtained results show that the porous HApTh nanopowders could be used for Pb2+ ions removal from aqueous solutions.
Cited literature [43 references]
https://hal-insu.archives-ouvertes.fr/insu-01052622
Contributor : Nathalie Pothier <>
Submitted on : Thursday, August 21, 2014 - 8:36:17 AM
Last modification on : Wednesday, September 23, 2020 - 4:39:57 AM
Long-term archiving on: : Tuesday, November 25, 2014 - 7:16:13 PM
Contributor : Nathalie Pothier <>
Submitted on : Thursday, August 21, 2014 - 8:36:17 AM
Last modification on : Wednesday, September 23, 2020 - 4:39:57 AM
Long-term archiving on: : Tuesday, November 25, 2014 - 7:16:13 PM
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