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dc.contributor.author
Diez, Alejandra
dc.contributor.author
Alvarez, Mariana
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dc.contributor.author
Volpe, María Alicia
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dc.date.available
2016-12-19T21:48:36Z
dc.date.issued
2015-05
dc.identifier.citation
Diez, Alejandra; Alvarez, Mariana; Volpe, María Alicia; Metal-Modified Mesoporous Silicate (MCM-41) Material: Preparation, Characterization and Applications as an Adsorbent; Sociedade Brasileira de Química; Journal Of The Brazilian Chemical Society; 26; 8; 5-2015; 1542-1550
dc.identifier.issn
0103-5053
dc.identifier.uri
http://hdl.handle.net/11336/9808
dc.description.abstract
Mesoporous silicate (MCM-41) materials, modified with CuII, FeIII or AlIII were prepared by a hydrothermal method and were characterized by nitrogen adsorption at 77 K, X-ray powder diffraction (XRD), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), temperature programmed reduction (TPR), adsorption of pyridine as monitored by Fourier transform infrared spectroscopy (FTIR) and n-butylamine titration. The degree of ordering of the mesoporous material was decreased by the presence of Cu, Fe, or Al. The added Fe or Cu gave rise to new acidic and oxidation-reduction sites, while Al resulted in new acidic sites. The hydrothermal stabilities of selected samples were studied as a function of temperature and pH. All the samples were stable in acidic and neutral media at temperatures from 303 to 363 K. Adsorption of phenol on MCM-41 at 303 K was strongly influenced by the pH and by the modification with Cu, Fe, or Al. Phenol adsorption was particularly strong at the Al-modified material at pH 3, apparently due to the acidic character of phenol.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Sociedade Brasileira de Química
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Mcm-41
dc.subject
Metal Modification
dc.subject
Aqueous Stability
dc.subject
Phenol Adsorption
dc.subject.classification
Química Inorgánica y Nuclear
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dc.subject.classification
Ciencias Químicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Metal-Modified Mesoporous Silicate (MCM-41) Material: Preparation, Characterization and Applications as an Adsorbent
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-12-12T19:05:58Z
dc.identifier.eissn
1678-4790
dc.journal.volume
26
dc.journal.number
8
dc.journal.pagination
1542-1550
dc.journal.pais
Brasil
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dc.journal.ciudad
San Pablo
dc.description.fil
Fil: Diez, Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto de Química del Sur; Argentina. Universidad Nacional del Sur. Departamento de Química; Argentina
dc.description.fil
Fil: Alvarez, Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto de Química del Sur; Argentina. Universidad Nacional del Sur. Departamento de Química; Argentina
dc.description.fil
Fil: Volpe, María Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Planta Piloto de Ingeniería Química (i); Argentina
dc.journal.title
Journal Of The Brazilian Chemical Society
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.crossref.org/iPage?doi=10.5935%2F0103-5053.20150122
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://ref.scielo.org/wmktt2
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://jbcs.sbq.org.br/imagebank/pdf/v26n8a02.pdf
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.5935/0103-5053.20150122
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