Paramagnetic Iron-Doped Hydroxyapatite Nanoparticles with Improved Metal Sorption Properties : A Bioorganic Substrates-Mediated Synthesis

This paper describes the synthesis of paramegnetic iron-containing hydroxyapatite nanoparticles and their increased Cu<sup>2+</sup> sorbent capacity when using Ca<sup>2+</sup> complexes of soluble bio-organic substrates from urban wastes as synthesis precursors. A thorough ch...

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Autores principales: Mercado Castro, Donaldo Fabio, Magnacca, Giuliana, Malandrino, Mery, Rubert, Aldo Alberto, Montoneri, Enzo, Celi, Luisella, Bianco Prevot, Alessandra, González, Mónica Cristina
Formato: Articulo
Lenguaje:Inglés
Publicado: 2014
Materias:
Ciencias Exactas
Química
Magnetic nanomaterials
Cu2+ sorption
Effective surface
Bioorganic substrates
Surface chemistry
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/102364
https://ri.conicet.gov.ar/11336/5027
http://pubs.acs.org/doi/pdf/10.1021/am405217j
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-102364
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Química
Magnetic nanomaterials
Cu2+ sorption
Effective surface
Bioorganic substrates
Surface chemistry
spellingShingle Ciencias Exactas
Química
Magnetic nanomaterials
Cu2+ sorption
Effective surface
Bioorganic substrates
Surface chemistry
Mercado Castro, Donaldo Fabio
Magnacca, Giuliana
Malandrino, Mery
Rubert, Aldo Alberto
Montoneri, Enzo
Celi, Luisella
Bianco Prevot, Alessandra
González, Mónica Cristina
Paramagnetic Iron-Doped Hydroxyapatite Nanoparticles with Improved Metal Sorption Properties : A Bioorganic Substrates-Mediated Synthesis
topic_facet Ciencias Exactas
Química
Magnetic nanomaterials
Cu2+ sorption
Effective surface
Bioorganic substrates
Surface chemistry
description This paper describes the synthesis of paramegnetic iron-containing hydroxyapatite nanoparticles and their increased Cu<sup>2+</sup> sorbent capacity when using Ca<sup>2+</sup> complexes of soluble bio-organic substrates from urban wastes as synthesis precursors. A thorough characterization of the particles by TEM, XRD, FTIR spectroscopy, specific surface area, TGA, XPS, and DLS, indicates that loss of crystallinity, a higher specific area, an increased surface oxygen content, and formation of surface iron phases strongly enhance Cu<sup>2+</sup> adsorption capacity of hydroxyapatite-based materials. However, the major effect of the surface and morphologycal modifications is the size diminution of the aggregates formed in aqueous solutions leading to an increased effective surface available for Cu<sup>2+</sup> adsorption. Maximum sorption values of 550-850 mg Cu<sup>2+</sup> per gram of particles suspended in an aqueous solution at pH 7 were determined; almost 10 times the maximum values observed for hydroxyapatite nanoparticles suspensions under the same conditions.
format Articulo
Articulo
author Mercado Castro, Donaldo Fabio
Magnacca, Giuliana
Malandrino, Mery
Rubert, Aldo Alberto
Montoneri, Enzo
Celi, Luisella
Bianco Prevot, Alessandra
González, Mónica Cristina
author_facet Mercado Castro, Donaldo Fabio
Magnacca, Giuliana
Malandrino, Mery
Rubert, Aldo Alberto
Montoneri, Enzo
Celi, Luisella
Bianco Prevot, Alessandra
González, Mónica Cristina
author_sort Mercado Castro, Donaldo Fabio
title Paramagnetic Iron-Doped Hydroxyapatite Nanoparticles with Improved Metal Sorption Properties : A Bioorganic Substrates-Mediated Synthesis
title_short Paramagnetic Iron-Doped Hydroxyapatite Nanoparticles with Improved Metal Sorption Properties : A Bioorganic Substrates-Mediated Synthesis
title_full Paramagnetic Iron-Doped Hydroxyapatite Nanoparticles with Improved Metal Sorption Properties : A Bioorganic Substrates-Mediated Synthesis
title_fullStr Paramagnetic Iron-Doped Hydroxyapatite Nanoparticles with Improved Metal Sorption Properties : A Bioorganic Substrates-Mediated Synthesis
title_full_unstemmed Paramagnetic Iron-Doped Hydroxyapatite Nanoparticles with Improved Metal Sorption Properties : A Bioorganic Substrates-Mediated Synthesis
title_sort paramagnetic iron-doped hydroxyapatite nanoparticles with improved metal sorption properties : a bioorganic substrates-mediated synthesis
publishDate 2014
url http://sedici.unlp.edu.ar/handle/10915/102364
https://ri.conicet.gov.ar/11336/5027
http://pubs.acs.org/doi/pdf/10.1021/am405217j
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