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

Autores
Mercado Castro, Donaldo Fabio; Magnacca, Giuliana; Malandrino, Mery; Rubert, Aldo Alberto; Montoneri, Enzo; Celi, Luisella; Bianco Prevot, Alessandra; González, Mónica Cristina
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This paper describes the synthesis of paramegnetic iron-containing hydroxyapatite nanoparticles and their increased Cu2+ sorbent capacity when using Ca2+ 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 Cu2+ 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 Cu2+ adsorption. Maximum sorption values of 550-850 mg Cu2+ 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.
Facultad de Ciencias Exactas
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
Materia
Ciencias Exactas
Química
Magnetic nanomaterials
Cu2+ sorption
Effective surface
Bioorganic substrates
Surface chemistry
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/102364
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/102364
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Paramagnetic Iron-Doped Hydroxyapatite Nanoparticles with Improved Metal Sorption Properties : A Bioorganic Substrates-Mediated SynthesisMercado Castro, Donaldo FabioMagnacca, GiulianaMalandrino, MeryRubert, Aldo AlbertoMontoneri, EnzoCeli, LuisellaBianco Prevot, AlessandraGonzález, Mónica CristinaCiencias ExactasQuímicaMagnetic nanomaterialsCu2+ sorptionEffective surfaceBioorganic substratesSurface chemistryThis 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.Facultad de Ciencias ExactasInstituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas2014-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf3937-3946http://sedici.unlp.edu.ar/handle/10915/102364enginfo:eu-repo/semantics/altIdentifier/url/https://ri.conicet.gov.ar/11336/5027info:eu-repo/semantics/altIdentifier/url/http://pubs.acs.org/doi/pdf/10.1021/am405217jinfo:eu-repo/semantics/altIdentifier/issn/1944-8244info:eu-repo/semantics/altIdentifier/doi/10.1021/am405217jinfo:eu-repo/semantics/altIdentifier/hdl/11336/5027info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-22T17:00:56Zoai:sedici.unlp.edu.ar:10915/102364Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 17:00:56.862SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Paramagnetic Iron-Doped Hydroxyapatite Nanoparticles with Improved Metal Sorption Properties : A Bioorganic Substrates-Mediated Synthesis
title Paramagnetic Iron-Doped Hydroxyapatite Nanoparticles with Improved Metal Sorption Properties : A Bioorganic Substrates-Mediated Synthesis
spellingShingle Paramagnetic Iron-Doped Hydroxyapatite Nanoparticles with Improved Metal Sorption Properties : A Bioorganic Substrates-Mediated Synthesis
Mercado Castro, Donaldo Fabio
Ciencias Exactas
Química
Magnetic nanomaterials
Cu2+ sorption
Effective surface
Bioorganic substrates
Surface chemistry
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
dc.creator.none.fl_str_mv Mercado Castro, Donaldo Fabio
Magnacca, Giuliana
Malandrino, Mery
Rubert, Aldo Alberto
Montoneri, Enzo
Celi, Luisella
Bianco Prevot, Alessandra
González, Mónica Cristina
author Mercado Castro, Donaldo Fabio
author_facet Mercado Castro, Donaldo Fabio
Magnacca, Giuliana
Malandrino, Mery
Rubert, Aldo Alberto
Montoneri, Enzo
Celi, Luisella
Bianco Prevot, Alessandra
González, Mónica Cristina
author_role author
author2 Magnacca, Giuliana
Malandrino, Mery
Rubert, Aldo Alberto
Montoneri, Enzo
Celi, Luisella
Bianco Prevot, Alessandra
González, Mónica Cristina
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Química
Magnetic nanomaterials
Cu2+ sorption
Effective surface
Bioorganic substrates
Surface chemistry
topic Ciencias Exactas
Química
Magnetic nanomaterials
Cu2+ sorption
Effective surface
Bioorganic substrates
Surface chemistry
dc.description.none.fl_txt_mv 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.
Facultad de Ciencias Exactas
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
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.
publishDate 2014
dc.date.none.fl_str_mv 2014-02
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/102364
url http://sedici.unlp.edu.ar/handle/10915/102364
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://ri.conicet.gov.ar/11336/5027
info:eu-repo/semantics/altIdentifier/url/http://pubs.acs.org/doi/pdf/10.1021/am405217j
info:eu-repo/semantics/altIdentifier/issn/1944-8244
info:eu-repo/semantics/altIdentifier/doi/10.1021/am405217j
info:eu-repo/semantics/altIdentifier/hdl/11336/5027
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
3937-3946
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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