ZnAl hydrotalcites modified with nanocomposites nZVI–PAA for environmental remediation

Autores
Nieto Zambrano, Sorelis; Ramos Ramirez, Esthela; Tzompantzi Morales, Francisco; Boffito, Daria Camilla; Naccache, Rafik; Gutiérrez Ortega, Norma L.; Litter, Marta Irene; Cipagauta Diaz, Sandra; Barbosa López, Aida Liliana
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Diffraction patterns of polyacrylic acid (PAA) encapsulated-(Fe)-modified ZnAl hydrotalcite (ZnAlH) showed the integration of Fe in the H lattice, resulting in a hybrid nanocomposite (Fe-PAA-ZnAlH), which was mainly verified with the characteristic shift in the 59–63° (2θ) region of the ZnAlH (110) reflection plane. The rise in the unit cell parameters (c and a) as the Fe % incremented, denoted incorporation of Fe in the ZnAlH red. Nonetheless, changes in the immobilizer molecular weight (PAA MW) from 1250 kDa to 5.1 kDa did not cause a difference in the distance between layers (c parameter) but in the cation-cation separation (a parameter), which meant that the nanoparticle was not located between layers, but in the lattice. The resulting band gap energies of the calcined hybrid nanocomposites were among 1.07–1.21 eV, which is an additional support of Fe+3 integration, suggesting insertion of Fe+3 3d orbitals between the valence and the conduction band of ZnO. Furthermore, nZVI were prepared through a pre-agglomeration reduction method, where COOH-groups were bound to metal cations. Initially, aqueous Fe+2 was bound to PAA [Fe+2-PAA], then reduced to obtain enclosed hybrid (nZVI-PAA). Less stability and more aggregation were observed with the lower molecular weight PAA. Additionally, PAA dissociation caused by pH changes affected the clustering of the nZVI particles. At higher MW, the hydrodynamic diameter and size distribution become smaller and tighter, respectively, allowing a more monodispersed population with sphere shape and organized in core–shell beads chains.
Fil: Nieto Zambrano, Sorelis. Universidad de Guanajuato; México
Fil: Ramos Ramirez, Esthela. Universidad de Guanajuato; México
Fil: Tzompantzi Morales, Francisco. Universidad Autónoma Metropolitana; México
Fil: Boffito, Daria Camilla. No especifíca;
Fil: Naccache, Rafik. Concordia University; Canadá
Fil: Gutiérrez Ortega, Norma L.. Universidad de Guanajuato; México
Fil: Litter, Marta Irene. Universidad Nacional de San Martín. Instituto de Investigación e Ingeniería Ambiental. - Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigación e Ingeniería Ambiental; Argentina
Fil: Cipagauta Diaz, Sandra. Universidad Autónoma Metropolitana; México
Fil: Barbosa López, Aida Liliana. Universidad de Cartagena.; Colombia
Materia
FE–PAA–ZNAL HYBRID NANOCOMPOSITE
IMMOBILIZER
NANO-ZERO VALENT IRON (NZVI)
NZVI–PAA HYBRID
PRE-AGGLOMERATION REDUCTION METHOD
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/174221
Acceder
id CONICETDig_bc458beffa08a698b1f4d407e2867df3
oai_identifier_str oai:ri.conicet.gov.ar:11336/174221
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling ZnAl hydrotalcites modified with nanocomposites nZVI–PAA for environmental remediationNieto Zambrano, SorelisRamos Ramirez, EsthelaTzompantzi Morales, FranciscoBoffito, Daria CamillaNaccache, RafikGutiérrez Ortega, Norma L.Litter, Marta IreneCipagauta Diaz, SandraBarbosa López, Aida LilianaFE–PAA–ZNAL HYBRID NANOCOMPOSITEIMMOBILIZERNANO-ZERO VALENT IRON (NZVI)NZVI–PAA HYBRIDPRE-AGGLOMERATION REDUCTION METHODhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Diffraction patterns of polyacrylic acid (PAA) encapsulated-(Fe)-modified ZnAl hydrotalcite (ZnAlH) showed the integration of Fe in the H lattice, resulting in a hybrid nanocomposite (Fe-PAA-ZnAlH), which was mainly verified with the characteristic shift in the 59–63° (2θ) region of the ZnAlH (110) reflection plane. The rise in the unit cell parameters (c and a) as the Fe % incremented, denoted incorporation of Fe in the ZnAlH red. Nonetheless, changes in the immobilizer molecular weight (PAA MW) from 1250 kDa to 5.1 kDa did not cause a difference in the distance between layers (c parameter) but in the cation-cation separation (a parameter), which meant that the nanoparticle was not located between layers, but in the lattice. The resulting band gap energies of the calcined hybrid nanocomposites were among 1.07–1.21 eV, which is an additional support of Fe+3 integration, suggesting insertion of Fe+3 3d orbitals between the valence and the conduction band of ZnO. Furthermore, nZVI were prepared through a pre-agglomeration reduction method, where COOH-groups were bound to metal cations. Initially, aqueous Fe+2 was bound to PAA [Fe+2-PAA], then reduced to obtain enclosed hybrid (nZVI-PAA). Less stability and more aggregation were observed with the lower molecular weight PAA. Additionally, PAA dissociation caused by pH changes affected the clustering of the nZVI particles. At higher MW, the hydrodynamic diameter and size distribution become smaller and tighter, respectively, allowing a more monodispersed population with sphere shape and organized in core–shell beads chains.Fil: Nieto Zambrano, Sorelis. Universidad de Guanajuato; MéxicoFil: Ramos Ramirez, Esthela. Universidad de Guanajuato; MéxicoFil: Tzompantzi Morales, Francisco. Universidad Autónoma Metropolitana; MéxicoFil: Boffito, Daria Camilla. No especifíca;Fil: Naccache, Rafik. Concordia University; CanadáFil: Gutiérrez Ortega, Norma L.. Universidad de Guanajuato; MéxicoFil: Litter, Marta Irene. Universidad Nacional de San Martín. Instituto de Investigación e Ingeniería Ambiental. - Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigación e Ingeniería Ambiental; ArgentinaFil: Cipagauta Diaz, Sandra. Universidad Autónoma Metropolitana; MéxicoFil: Barbosa López, Aida Liliana. Universidad de Cartagena.; ColombiaElsevier2021-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/174221Nieto Zambrano, Sorelis; Ramos Ramirez, Esthela; Tzompantzi Morales, Francisco; Boffito, Daria Camilla; Naccache, Rafik; et al.; ZnAl hydrotalcites modified with nanocomposites nZVI–PAA for environmental remediation; Elsevier; Journal of Materials Research and Technology; 14; 9-2021; 2243-22562238-7854CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S2238785421006104info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jmrt.2021.06.055info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:02:22Zoai:ri.conicet.gov.ar:11336/174221instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:02:22.373CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv ZnAl hydrotalcites modified with nanocomposites nZVI–PAA for environmental remediation
title ZnAl hydrotalcites modified with nanocomposites nZVI–PAA for environmental remediation
spellingShingle ZnAl hydrotalcites modified with nanocomposites nZVI–PAA for environmental remediation
Nieto Zambrano, Sorelis
FE–PAA–ZNAL HYBRID NANOCOMPOSITE
IMMOBILIZER
NANO-ZERO VALENT IRON (NZVI)
NZVI–PAA HYBRID
PRE-AGGLOMERATION REDUCTION METHOD
title_short ZnAl hydrotalcites modified with nanocomposites nZVI–PAA for environmental remediation
title_full ZnAl hydrotalcites modified with nanocomposites nZVI–PAA for environmental remediation
title_fullStr ZnAl hydrotalcites modified with nanocomposites nZVI–PAA for environmental remediation
title_full_unstemmed ZnAl hydrotalcites modified with nanocomposites nZVI–PAA for environmental remediation
title_sort ZnAl hydrotalcites modified with nanocomposites nZVI–PAA for environmental remediation
dc.creator.none.fl_str_mv Nieto Zambrano, Sorelis
Ramos Ramirez, Esthela
Tzompantzi Morales, Francisco
Boffito, Daria Camilla
Naccache, Rafik
Gutiérrez Ortega, Norma L.
Litter, Marta Irene
Cipagauta Diaz, Sandra
Barbosa López, Aida Liliana
author Nieto Zambrano, Sorelis
author_facet Nieto Zambrano, Sorelis
Ramos Ramirez, Esthela
Tzompantzi Morales, Francisco
Boffito, Daria Camilla
Naccache, Rafik
Gutiérrez Ortega, Norma L.
Litter, Marta Irene
Cipagauta Diaz, Sandra
Barbosa López, Aida Liliana
author_role author
author2 Ramos Ramirez, Esthela
Tzompantzi Morales, Francisco
Boffito, Daria Camilla
Naccache, Rafik
Gutiérrez Ortega, Norma L.
Litter, Marta Irene
Cipagauta Diaz, Sandra
Barbosa López, Aida Liliana
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv FE–PAA–ZNAL HYBRID NANOCOMPOSITE
IMMOBILIZER
NANO-ZERO VALENT IRON (NZVI)
NZVI–PAA HYBRID
PRE-AGGLOMERATION REDUCTION METHOD
topic FE–PAA–ZNAL HYBRID NANOCOMPOSITE
IMMOBILIZER
NANO-ZERO VALENT IRON (NZVI)
NZVI–PAA HYBRID
PRE-AGGLOMERATION REDUCTION METHOD
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Diffraction patterns of polyacrylic acid (PAA) encapsulated-(Fe)-modified ZnAl hydrotalcite (ZnAlH) showed the integration of Fe in the H lattice, resulting in a hybrid nanocomposite (Fe-PAA-ZnAlH), which was mainly verified with the characteristic shift in the 59–63° (2θ) region of the ZnAlH (110) reflection plane. The rise in the unit cell parameters (c and a) as the Fe % incremented, denoted incorporation of Fe in the ZnAlH red. Nonetheless, changes in the immobilizer molecular weight (PAA MW) from 1250 kDa to 5.1 kDa did not cause a difference in the distance between layers (c parameter) but in the cation-cation separation (a parameter), which meant that the nanoparticle was not located between layers, but in the lattice. The resulting band gap energies of the calcined hybrid nanocomposites were among 1.07–1.21 eV, which is an additional support of Fe+3 integration, suggesting insertion of Fe+3 3d orbitals between the valence and the conduction band of ZnO. Furthermore, nZVI were prepared through a pre-agglomeration reduction method, where COOH-groups were bound to metal cations. Initially, aqueous Fe+2 was bound to PAA [Fe+2-PAA], then reduced to obtain enclosed hybrid (nZVI-PAA). Less stability and more aggregation were observed with the lower molecular weight PAA. Additionally, PAA dissociation caused by pH changes affected the clustering of the nZVI particles. At higher MW, the hydrodynamic diameter and size distribution become smaller and tighter, respectively, allowing a more monodispersed population with sphere shape and organized in core–shell beads chains.
Fil: Nieto Zambrano, Sorelis. Universidad de Guanajuato; México
Fil: Ramos Ramirez, Esthela. Universidad de Guanajuato; México
Fil: Tzompantzi Morales, Francisco. Universidad Autónoma Metropolitana; México
Fil: Boffito, Daria Camilla. No especifíca;
Fil: Naccache, Rafik. Concordia University; Canadá
Fil: Gutiérrez Ortega, Norma L.. Universidad de Guanajuato; México
Fil: Litter, Marta Irene. Universidad Nacional de San Martín. Instituto de Investigación e Ingeniería Ambiental. - Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigación e Ingeniería Ambiental; Argentina
Fil: Cipagauta Diaz, Sandra. Universidad Autónoma Metropolitana; México
Fil: Barbosa López, Aida Liliana. Universidad de Cartagena.; Colombia
description Diffraction patterns of polyacrylic acid (PAA) encapsulated-(Fe)-modified ZnAl hydrotalcite (ZnAlH) showed the integration of Fe in the H lattice, resulting in a hybrid nanocomposite (Fe-PAA-ZnAlH), which was mainly verified with the characteristic shift in the 59–63° (2θ) region of the ZnAlH (110) reflection plane. The rise in the unit cell parameters (c and a) as the Fe % incremented, denoted incorporation of Fe in the ZnAlH red. Nonetheless, changes in the immobilizer molecular weight (PAA MW) from 1250 kDa to 5.1 kDa did not cause a difference in the distance between layers (c parameter) but in the cation-cation separation (a parameter), which meant that the nanoparticle was not located between layers, but in the lattice. The resulting band gap energies of the calcined hybrid nanocomposites were among 1.07–1.21 eV, which is an additional support of Fe+3 integration, suggesting insertion of Fe+3 3d orbitals between the valence and the conduction band of ZnO. Furthermore, nZVI were prepared through a pre-agglomeration reduction method, where COOH-groups were bound to metal cations. Initially, aqueous Fe+2 was bound to PAA [Fe+2-PAA], then reduced to obtain enclosed hybrid (nZVI-PAA). Less stability and more aggregation were observed with the lower molecular weight PAA. Additionally, PAA dissociation caused by pH changes affected the clustering of the nZVI particles. At higher MW, the hydrodynamic diameter and size distribution become smaller and tighter, respectively, allowing a more monodispersed population with sphere shape and organized in core–shell beads chains.
publishDate 2021
dc.date.none.fl_str_mv 2021-09
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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://hdl.handle.net/11336/174221
Nieto Zambrano, Sorelis; Ramos Ramirez, Esthela; Tzompantzi Morales, Francisco; Boffito, Daria Camilla; Naccache, Rafik; et al.; ZnAl hydrotalcites modified with nanocomposites nZVI–PAA for environmental remediation; Elsevier; Journal of Materials Research and Technology; 14; 9-2021; 2243-2256
2238-7854
CONICET Digital
CONICET
url http://hdl.handle.net/11336/174221
identifier_str_mv Nieto Zambrano, Sorelis; Ramos Ramirez, Esthela; Tzompantzi Morales, Francisco; Boffito, Daria Camilla; Naccache, Rafik; et al.; ZnAl hydrotalcites modified with nanocomposites nZVI–PAA for environmental remediation; Elsevier; Journal of Materials Research and Technology; 14; 9-2021; 2243-2256
2238-7854
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S2238785421006104
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jmrt.2021.06.055
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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