Versatile Fe-Containing Hydroxyapatite Nanomaterials as Efficient Substrates for Lead Ions Adsorption
- Autores
- Mercado, D. F.; Rubert, Aldo Alberto; Magnacca, G.; Malandrino, M.; Sapino, S.; Caregnato, Paula; Bianco Prevot, A.; González, Mónica Cristina
- Año de publicación
- 2017
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The capability of paramegnetic iron-containing hydroxyapatite (Fe-nAp) and waste bioorganic subtrates templeted iron-containing hydroxyapatite (SBO-Fe-nAp) nanoparticles, as Pb(II) cations adsorbants were investigated and compared to those of synthetic hydroxyapatite (nAp). Surface and bulk characterization techniques as XPS, XRD, electrophoretic mobility, FTIR spectroscopy, DLS, and TEM were used to investigate the adsorption mechanisms involved and ICP-AES to determine Pb(II) concentrations in aqueous solutions. The apatite-based nanoparticles were found to be efficient materials for the irreversible adsorption of Pb(II) ions from aqueous solutions, with maximum adsorption capacity increasing as: hydroxyapatite<waste bioorganic subtrates templeted ironcontaining hydroxyapatite < iron-containing hydroxyapatite. Adsorption capacities of 1500 mg g−1 observed for iron-containing hydroxyapatite, are among the highest reported for Pb(II) adsorption. The high surface to volume ratio, low crystallinity, and the negatively charged surface, strongly favour aqueous Pb(II) adsorption on Fe-containing apatites over the positively charged crystalline hydroxyapatite. The adsorption mechanisms involved depend on the available surface hydroxyl and carboxyl groups as well as on the formation of stable lead-containing hydroxyapatite-like structures. Moreover, bimetal adsorption experiments involving Cu(II) and Pb(II) ions show particular selectivity depending on the surface chemistry of the hydroxyapatite-based adsorbent. While hydroxyapatite is selective towards Pb(II), Fe-containing hydroxyapatite selectivity depends on the relative [Pb]/[Cu] ratio, and waste bioorganic subtrates templeted Fe-containing hydroxyapatite, adsorbs both ions with similar capability.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas - Materia
-
Química
Paramagnetic Nanoparticles
Pb(II) Adsorption
Cu(II) Adsorption
Bio-Organic Substrates
Surface Chemistry - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/170140
Ver los metadatos del registro completo
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Versatile Fe-Containing Hydroxyapatite Nanomaterials as Efficient Substrates for Lead Ions AdsorptionMercado, D. F.Rubert, Aldo AlbertoMagnacca, G.Malandrino, M.Sapino, S.Caregnato, PaulaBianco Prevot, A.González, Mónica CristinaQuímicaParamagnetic NanoparticlesPb(II) AdsorptionCu(II) AdsorptionBio-Organic SubstratesSurface ChemistryThe capability of paramegnetic iron-containing hydroxyapatite (Fe-nAp) and waste bioorganic subtrates templeted iron-containing hydroxyapatite (SBO-Fe-nAp) nanoparticles, as Pb(II) cations adsorbants were investigated and compared to those of synthetic hydroxyapatite (nAp). Surface and bulk characterization techniques as XPS, XRD, electrophoretic mobility, FTIR spectroscopy, DLS, and TEM were used to investigate the adsorption mechanisms involved and ICP-AES to determine Pb(II) concentrations in aqueous solutions. The apatite-based nanoparticles were found to be efficient materials for the irreversible adsorption of Pb(II) ions from aqueous solutions, with maximum adsorption capacity increasing as: hydroxyapatite<waste bioorganic subtrates templeted ironcontaining hydroxyapatite < iron-containing hydroxyapatite. Adsorption capacities of 1500 mg g−1 observed for iron-containing hydroxyapatite, are among the highest reported for Pb(II) adsorption. The high surface to volume ratio, low crystallinity, and the negatively charged surface, strongly favour aqueous Pb(II) adsorption on Fe-containing apatites over the positively charged crystalline hydroxyapatite. The adsorption mechanisms involved depend on the available surface hydroxyl and carboxyl groups as well as on the formation of stable lead-containing hydroxyapatite-like structures. Moreover, bimetal adsorption experiments involving Cu(II) and Pb(II) ions show particular selectivity depending on the surface chemistry of the hydroxyapatite-based adsorbent. While hydroxyapatite is selective towards Pb(II), Fe-containing hydroxyapatite selectivity depends on the relative [Pb]/[Cu] ratio, and waste bioorganic subtrates templeted Fe-containing hydroxyapatite, adsorbs both ions with similar capability.Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas2017info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/170140enginfo:eu-repo/semantics/altIdentifier/issn/1533-4899info:eu-repo/semantics/altIdentifier/doi/10.1166/jnn.2017.13870info: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:UNLP2025-09-29T11:45:36Zoai:sedici.unlp.edu.ar:10915/170140Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:45:37.299SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Versatile Fe-Containing Hydroxyapatite Nanomaterials as Efficient Substrates for Lead Ions Adsorption |
title |
Versatile Fe-Containing Hydroxyapatite Nanomaterials as Efficient Substrates for Lead Ions Adsorption |
spellingShingle |
Versatile Fe-Containing Hydroxyapatite Nanomaterials as Efficient Substrates for Lead Ions Adsorption Mercado, D. F. Química Paramagnetic Nanoparticles Pb(II) Adsorption Cu(II) Adsorption Bio-Organic Substrates Surface Chemistry |
title_short |
Versatile Fe-Containing Hydroxyapatite Nanomaterials as Efficient Substrates for Lead Ions Adsorption |
title_full |
Versatile Fe-Containing Hydroxyapatite Nanomaterials as Efficient Substrates for Lead Ions Adsorption |
title_fullStr |
Versatile Fe-Containing Hydroxyapatite Nanomaterials as Efficient Substrates for Lead Ions Adsorption |
title_full_unstemmed |
Versatile Fe-Containing Hydroxyapatite Nanomaterials as Efficient Substrates for Lead Ions Adsorption |
title_sort |
Versatile Fe-Containing Hydroxyapatite Nanomaterials as Efficient Substrates for Lead Ions Adsorption |
dc.creator.none.fl_str_mv |
Mercado, D. F. Rubert, Aldo Alberto Magnacca, G. Malandrino, M. Sapino, S. Caregnato, Paula Bianco Prevot, A. González, Mónica Cristina |
author |
Mercado, D. F. |
author_facet |
Mercado, D. F. Rubert, Aldo Alberto Magnacca, G. Malandrino, M. Sapino, S. Caregnato, Paula Bianco Prevot, A. González, Mónica Cristina |
author_role |
author |
author2 |
Rubert, Aldo Alberto Magnacca, G. Malandrino, M. Sapino, S. Caregnato, Paula Bianco Prevot, A. González, Mónica Cristina |
author2_role |
author author author author author author author |
dc.subject.none.fl_str_mv |
Química Paramagnetic Nanoparticles Pb(II) Adsorption Cu(II) Adsorption Bio-Organic Substrates Surface Chemistry |
topic |
Química Paramagnetic Nanoparticles Pb(II) Adsorption Cu(II) Adsorption Bio-Organic Substrates Surface Chemistry |
dc.description.none.fl_txt_mv |
The capability of paramegnetic iron-containing hydroxyapatite (Fe-nAp) and waste bioorganic subtrates templeted iron-containing hydroxyapatite (SBO-Fe-nAp) nanoparticles, as Pb(II) cations adsorbants were investigated and compared to those of synthetic hydroxyapatite (nAp). Surface and bulk characterization techniques as XPS, XRD, electrophoretic mobility, FTIR spectroscopy, DLS, and TEM were used to investigate the adsorption mechanisms involved and ICP-AES to determine Pb(II) concentrations in aqueous solutions. The apatite-based nanoparticles were found to be efficient materials for the irreversible adsorption of Pb(II) ions from aqueous solutions, with maximum adsorption capacity increasing as: hydroxyapatite<waste bioorganic subtrates templeted ironcontaining hydroxyapatite < iron-containing hydroxyapatite. Adsorption capacities of 1500 mg g−1 observed for iron-containing hydroxyapatite, are among the highest reported for Pb(II) adsorption. The high surface to volume ratio, low crystallinity, and the negatively charged surface, strongly favour aqueous Pb(II) adsorption on Fe-containing apatites over the positively charged crystalline hydroxyapatite. The adsorption mechanisms involved depend on the available surface hydroxyl and carboxyl groups as well as on the formation of stable lead-containing hydroxyapatite-like structures. Moreover, bimetal adsorption experiments involving Cu(II) and Pb(II) ions show particular selectivity depending on the surface chemistry of the hydroxyapatite-based adsorbent. While hydroxyapatite is selective towards Pb(II), Fe-containing hydroxyapatite selectivity depends on the relative [Pb]/[Cu] ratio, and waste bioorganic subtrates templeted Fe-containing hydroxyapatite, adsorbs both ions with similar capability. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas |
description |
The capability of paramegnetic iron-containing hydroxyapatite (Fe-nAp) and waste bioorganic subtrates templeted iron-containing hydroxyapatite (SBO-Fe-nAp) nanoparticles, as Pb(II) cations adsorbants were investigated and compared to those of synthetic hydroxyapatite (nAp). Surface and bulk characterization techniques as XPS, XRD, electrophoretic mobility, FTIR spectroscopy, DLS, and TEM were used to investigate the adsorption mechanisms involved and ICP-AES to determine Pb(II) concentrations in aqueous solutions. The apatite-based nanoparticles were found to be efficient materials for the irreversible adsorption of Pb(II) ions from aqueous solutions, with maximum adsorption capacity increasing as: hydroxyapatite<waste bioorganic subtrates templeted ironcontaining hydroxyapatite < iron-containing hydroxyapatite. Adsorption capacities of 1500 mg g−1 observed for iron-containing hydroxyapatite, are among the highest reported for Pb(II) adsorption. The high surface to volume ratio, low crystallinity, and the negatively charged surface, strongly favour aqueous Pb(II) adsorption on Fe-containing apatites over the positively charged crystalline hydroxyapatite. The adsorption mechanisms involved depend on the available surface hydroxyl and carboxyl groups as well as on the formation of stable lead-containing hydroxyapatite-like structures. Moreover, bimetal adsorption experiments involving Cu(II) and Pb(II) ions show particular selectivity depending on the surface chemistry of the hydroxyapatite-based adsorbent. While hydroxyapatite is selective towards Pb(II), Fe-containing hydroxyapatite selectivity depends on the relative [Pb]/[Cu] ratio, and waste bioorganic subtrates templeted Fe-containing hydroxyapatite, adsorbs both ions with similar capability. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017 |
dc.type.none.fl_str_mv |
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http://sedici.unlp.edu.ar/handle/10915/170140 |
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eng |
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eng |
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