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dc.contributor.author
Inchaurrondo, Natalia Soledad
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dc.contributor.author
Di Luca, Carla
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dc.contributor.author
Mori, Maria Fernanda
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dc.contributor.author
Pintar, A.
dc.contributor.author
Zerjav, G.
dc.contributor.author
Valiente, M.
dc.contributor.author
Palet, C.
dc.date.available
2020-06-23T20:02:29Z
dc.date.issued
2019-02
dc.identifier.citation
Inchaurrondo, Natalia Soledad; Di Luca, Carla; Mori, Maria Fernanda; Pintar, A.; Zerjav, G.; et al.; Synthesis and adsorption behavior of mesoporous alumina and Fe-doped alumina for the removal of dominant arsenic species in contaminated waters; Elsevier Ltd; Journal of Environmental Chemical Engineering; 7; 1; 2-2019; 102901-1/14
dc.identifier.issn
2213-3437
dc.identifier.uri
http://hdl.handle.net/11336/107994
dc.description.abstract
Ordered mesoporous Al 2 O 3 and Fe-Al 2 O 3 materials were synthesized at room temperature by an easy and environmentally friendly self-assembly sol-gel route, to be tested for arsenic removal. Solid samples were thoroughly characterized by several techniques. Synthetized and commercial alumina samples were evaluated as adsorbents for the removal of dominant arsenic species under a wide pH range (3.6-11.5). The mesoporous alumina showed higher adsorption capacity (90 mg/g As(V), pH eq 4) than commercial alumina (54 mg/g As(V), pH eq 4), due to its amorphous structure, uniform accessible mesopores and higher surface acidity. The Fe bearing material exhibited strong As affinity. As(III) adsorption resulted much lower than for arsenate (maximum uptake of 16 mg/g, at pH 8), since As(III)-adsorbent interaction is only based on weak Van der Waals force. Arsenic isotherms adjusted well to the Freundlich model and more accurately to the three parameters Siṕs model. The kinetics results fitted the Elovich model. As pH increased, adsorption capacity decreased due to the reduction of electrostatic interactions. Under alkaline conditions arsenic desorption was achieved, although the stability of the material was compromised. The presence of several interfering ions was evaluated. Phosphate ions showed the highest interference. The use of a tap water matrix increased As(V) adsorption, encouraging the use of these materials in the treatment of real polluted waters.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Ltd
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
MESOPOROUS ALUMINA
dc.subject
FE DOPED ALUMINA
dc.subject
AS(III) AND AS(V) REMOVAL
dc.subject
ADSORPTION MECHANISM
dc.subject.classification
Otras Ingeniería del Medio Ambiente
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dc.subject.classification
Ingeniería del Medio Ambiente
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dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
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dc.title
Synthesis and adsorption behavior of mesoporous alumina and Fe-doped alumina for the removal of dominant arsenic species in contaminated waters
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-06-16T13:39:49Z
dc.journal.volume
7
dc.journal.number
1
dc.journal.pagination
102901-1/14
dc.journal.pais
Países Bajos
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dc.description.fil
Fil: Inchaurrondo, Natalia Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
dc.description.fil
Fil: Di Luca, Carla. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
dc.description.fil
Fil: Mori, Maria Fernanda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
dc.description.fil
Fil: Pintar, A.. Department For Environmental Sciences And Engineering;
dc.description.fil
Fil: Zerjav, G.. Department For Environmental Sciences And Engineering;
dc.description.fil
Fil: Valiente, M.. Gts, Universitat Autònoma de Barcelona;
dc.description.fil
Fil: Palet, C.. Gts, Universitat Autónoma de Barcelona;
dc.journal.title
Journal of Environmental Chemical Engineering
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S2213343719300247
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.jece.2019.102901
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