Magnetic, structural and surface properties of functionalized maghemite nanoparticles for copper and lead adsorption

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In this study, magnetic nanocomposites were developed and used as adsorbents for lead and copper from aqueous media. Structural, surface, magnetic and textural properties of functionalized maghemite nanoparticles synthesized by alkaline co-precipitation were studied. The surfaces of the iron oxide n...

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Detalles Bibliográficos
Autores: Guivar, JAR, Sadrollahi, E, Menzel, D, Fernandes, EGR, Loez, EO, Torres, MM, Arsuaga, JM, Arencibia, A, Litterst, FJ
Formato: artículo
Fecha de Publicación:2017
Institución:Consejo Nacional de Ciencia Tecnología e Innovación
Repositorio:CONCYTEC-Institucional
Lenguaje:inglés
OAI Identifier:oai:repositorio.concytec.gob.pe:20.500.12390/976
Enlace del recurso:https://hdl.handle.net/20.500.12390/976
https://doi.org/10.1039/c7ra02750h
Nivel de acceso:acceso abierto
Materia:Adsorption
Alkalinity
Carbon
id CONC_78ad01945793c58fa6313b0b93d71a60
oai_identifier_str oai:repositorio.concytec.gob.pe:20.500.12390/976
network_acronym_str CONC
network_name_str CONCYTEC-Institucional
repository_id_str 4689
dc.title.none.fl_str_mv Magnetic, structural and surface properties of functionalized maghemite nanoparticles for copper and lead adsorption
title Magnetic, structural and surface properties of functionalized maghemite nanoparticles for copper and lead adsorption
spellingShingle Magnetic, structural and surface properties of functionalized maghemite nanoparticles for copper and lead adsorption
Guivar, JAR
Adsorption
Alkalinity
Carbon
title_short Magnetic, structural and surface properties of functionalized maghemite nanoparticles for copper and lead adsorption
title_full Magnetic, structural and surface properties of functionalized maghemite nanoparticles for copper and lead adsorption
title_fullStr Magnetic, structural and surface properties of functionalized maghemite nanoparticles for copper and lead adsorption
title_full_unstemmed Magnetic, structural and surface properties of functionalized maghemite nanoparticles for copper and lead adsorption
title_sort Magnetic, structural and surface properties of functionalized maghemite nanoparticles for copper and lead adsorption
author Guivar, JAR
author_facet Guivar, JAR
Sadrollahi, E
Menzel, D
Fernandes, EGR
Loez, EO
Torres, MM
Arsuaga, JM
Arencibia, A
Litterst, FJ
author_role author
author2 Sadrollahi, E
Menzel, D
Fernandes, EGR
Loez, EO
Torres, MM
Arsuaga, JM
Arencibia, A
Litterst, FJ
author2_role author
author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Guivar, JAR
Sadrollahi, E
Menzel, D
Fernandes, EGR
Loez, EO
Torres, MM
Arsuaga, JM
Arencibia, A
Litterst, FJ
dc.subject.en.fl_str_mv Adsorption
Alkalinity
Carbon
topic Adsorption
Alkalinity
Carbon
description In this study, magnetic nanocomposites were developed and used as adsorbents for lead and copper from aqueous media. Structural, surface, magnetic and textural properties of functionalized maghemite nanoparticles synthesized by alkaline co-precipitation were studied. The surfaces of the iron oxide nanoparticles (Nps) were modified with different chemical agents such as fatty and amino acids, silica (SiO2), mesoporous silica (SBA-15), hydroxyapatite, multiwall carbon nanotubes (MWCNTs) and ethylenediaminetetraacetic acid (EDTA), obtaining NPs with mean particle sizes ranging from 7 to 16 nm according to Rietveld refinement and TEM images analysis. The physicochemical surface properties of the functionalized materials were studied via zeta potential (z) and Fourier transform infrared (FTIR) spectroscopy. Mossbauer spectroscopy (MS) as a function of temperature and DC magnetometry were ¨ used to study the magnetic properties. The superparamagnetic relaxation was studied by MS. The resolved spectra at 20 K confirm the presence of nanomaghemite phase. Besides, the saturation magnetization varies from 12 to 62 emu g 1 . A nitrogen adsorption–desorption technique was used to determine the specific surface area and to study the porous structure. The functionalized g-Fe2O3 Nps exhibited a Brunauer–Emmett–Teller (BET) specific surface area ranging from 74 to 214 m2 g 1 and revealed remarkable uptake capacities to remove Cu(II) and Pb(II) species from aqueous solutions
publishDate 2017
dc.date.accessioned.none.fl_str_mv 2024-05-30T23:13:38Z
dc.date.available.none.fl_str_mv 2024-05-30T23:13:38Z
dc.date.issued.fl_str_mv 2017
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.uri.none.fl_str_mv https://hdl.handle.net/20.500.12390/976
dc.identifier.doi.none.fl_str_mv https://doi.org/10.1039/c7ra02750h
dc.identifier.isi.none.fl_str_mv 458300100003
url https://hdl.handle.net/20.500.12390/976
https://doi.org/10.1039/c7ra02750h
identifier_str_mv 458300100003
dc.language.iso.none.fl_str_mv eng
language eng
dc.relation.ispartof.none.fl_str_mv RSC Advances
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
dc.rights.uri.none.fl_str_mv https://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/4.0/
dc.publisher.none.fl_str_mv Royal Society of Chemistry
publisher.none.fl_str_mv Royal Society of Chemistry
dc.source.none.fl_str_mv reponame:CONCYTEC-Institucional
instname:Consejo Nacional de Ciencia Tecnología e Innovación
instacron:CONCYTEC
instname_str Consejo Nacional de Ciencia Tecnología e Innovación
instacron_str CONCYTEC
institution CONCYTEC
reponame_str CONCYTEC-Institucional
collection CONCYTEC-Institucional
repository.name.fl_str_mv Repositorio Institucional CONCYTEC
repository.mail.fl_str_mv repositorio@concytec.gob.pe
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spelling Publicationrp02030500rp02096500rp02676600rp02675600rp02677600rp02674600rp02678600rp00683500rp02031500Guivar, JARSadrollahi, EMenzel, DFernandes, EGRLoez, EOTorres, MMArsuaga, JMArencibia, ALitterst, FJ2024-05-30T23:13:38Z2024-05-30T23:13:38Z2017https://hdl.handle.net/20.500.12390/976https://doi.org/10.1039/c7ra02750h458300100003In this study, magnetic nanocomposites were developed and used as adsorbents for lead and copper from aqueous media. Structural, surface, magnetic and textural properties of functionalized maghemite nanoparticles synthesized by alkaline co-precipitation were studied. The surfaces of the iron oxide nanoparticles (Nps) were modified with different chemical agents such as fatty and amino acids, silica (SiO2), mesoporous silica (SBA-15), hydroxyapatite, multiwall carbon nanotubes (MWCNTs) and ethylenediaminetetraacetic acid (EDTA), obtaining NPs with mean particle sizes ranging from 7 to 16 nm according to Rietveld refinement and TEM images analysis. The physicochemical surface properties of the functionalized materials were studied via zeta potential (z) and Fourier transform infrared (FTIR) spectroscopy. Mossbauer spectroscopy (MS) as a function of temperature and DC magnetometry were ¨ used to study the magnetic properties. The superparamagnetic relaxation was studied by MS. The resolved spectra at 20 K confirm the presence of nanomaghemite phase. Besides, the saturation magnetization varies from 12 to 62 emu g 1 . A nitrogen adsorption–desorption technique was used to determine the specific surface area and to study the porous structure. The functionalized g-Fe2O3 Nps exhibited a Brunauer–Emmett–Teller (BET) specific surface area ranging from 74 to 214 m2 g 1 and revealed remarkable uptake capacities to remove Cu(II) and Pb(II) species from aqueous solutionsConsejo Nacional de Ciencia, Tecnología e Innovación Tecnológica - ConcytecengRoyal Society of ChemistryRSC Advancesinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/4.0/AdsorptionAlkalinityCarbonMagnetic, structural and surface properties of functionalized maghemite nanoparticles for copper and lead adsorptioninfo:eu-repo/semantics/articlereponame:CONCYTEC-Institucionalinstname:Consejo Nacional de Ciencia Tecnología e 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12:12:57.843https://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_14cbinfo:eu-repo/semantics/closedAccessmetadata only accesshttps://repositorio.concytec.gob.peRepositorio Institucional CONCYTECrepositorio@concytec.gob.pe#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#<Publication xmlns="https://www.openaire.eu/cerif-profile/1.1/" id="674aeb7a-00f5-4f20-a88f-791ad83cec39"> <Type xmlns="https://www.openaire.eu/cerif-profile/vocab/COAR_Publication_Types">http://purl.org/coar/resource_type/c_1843</Type> <Language>eng</Language> <Title>Magnetic, structural and surface properties of functionalized maghemite nanoparticles for copper and lead adsorption</Title> <PublishedIn> <Publication> <Title>RSC Advances</Title> </Publication> </PublishedIn> <PublicationDate>2017</PublicationDate> <DOI>https://doi.org/10.1039/c7ra02750h</DOI> <ISI-Number>458300100003</ISI-Number> <Authors> <Author> <DisplayName>Guivar, JAR</DisplayName> <Person id="rp02030" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> <Author> <DisplayName>Sadrollahi, E</DisplayName> <Person id="rp02096" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> <Author> <DisplayName>Menzel, D</DisplayName> <Person id="rp02676" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> <Author> <DisplayName>Fernandes, EGR</DisplayName> <Person id="rp02675" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> <Author> <DisplayName>Loez, EO</DisplayName> <Person id="rp02677" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> <Author> <DisplayName>Torres, MM</DisplayName> <Person id="rp02674" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> <Author> <DisplayName>Arsuaga, JM</DisplayName> <Person id="rp02678" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> <Author> <DisplayName>Arencibia, A</DisplayName> <Person id="rp00683" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> <Author> <DisplayName>Litterst, FJ</DisplayName> <Person id="rp02031" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> </Authors> <Editors> </Editors> <Publishers> <Publisher> <DisplayName>Royal Society of Chemistry</DisplayName> <OrgUnit /> </Publisher> </Publishers> <License>https://creativecommons.org/licenses/by/4.0/</License> <Keyword>Adsorption</Keyword> <Keyword>Alkalinity</Keyword> <Keyword>Carbon</Keyword> <Abstract>In this study, magnetic nanocomposites were developed and used as adsorbents for lead and copper from aqueous media. Structural, surface, magnetic and textural properties of functionalized maghemite nanoparticles synthesized by alkaline co-precipitation were studied. The surfaces of the iron oxide nanoparticles (Nps) were modified with different chemical agents such as fatty and amino acids, silica (SiO2), mesoporous silica (SBA-15), hydroxyapatite, multiwall carbon nanotubes (MWCNTs) and ethylenediaminetetraacetic acid (EDTA), obtaining NPs with mean particle sizes ranging from 7 to 16 nm according to Rietveld refinement and TEM images analysis. The physicochemical surface properties of the functionalized materials were studied via zeta potential (z) and Fourier transform infrared (FTIR) spectroscopy. Mossbauer spectroscopy (MS) as a function of temperature and DC magnetometry were ¨ used to study the magnetic properties. The superparamagnetic relaxation was studied by MS. The resolved spectra at 20 K confirm the presence of nanomaghemite phase. Besides, the saturation magnetization varies from 12 to 62 emu g 1 . A nitrogen adsorption–desorption technique was used to determine the specific surface area and to study the porous structure. The functionalized g-Fe2O3 Nps exhibited a Brunauer–Emmett–Teller (BET) specific surface area ranging from 74 to 214 m2 g 1 and revealed remarkable uptake capacities to remove Cu(II) and Pb(II) species from aqueous solutions</Abstract> <Access xmlns="http://purl.org/coar/access_right" > </Access> </Publication> -1
score 13.924112
Magnetic, structural and surface properties of functionalized maghemite nanoparticles for copper and lead adsorption
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