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dc.contributor.author
Gómez, Silvina del Valle
dc.contributor.author
Leal Marchena, Candelaria
dc.contributor.author
Renzini, Maria Soledad
dc.contributor.author
Pizzio, Luis Rene
dc.contributor.author
Pierella, Liliana Beatriz
dc.date.available
2016-05-11T13:16:24Z
dc.date.issued
2015-01
dc.identifier.citation
Gómez, Silvina del Valle; Leal Marchena, Candelaria; Renzini, Maria Soledad; Pizzio, Luis Rene; Pierella, Liliana Beatriz; In situ generated TiO2 over zeolitic supports as reusable photocatalysts for the degradation of dichlorvos; Elsevier; Applied Catalysis B: Environmental; 162; 1-2015; 167-173
dc.identifier.issn
0926-3373
dc.identifier.uri
http://hdl.handle.net/11336/5628
dc.description.abstract
Materials based on titania supported on zeolitic matrices (HBETA, HY and HZSM5) were synthesized by in situ generation of TiO2. The supported catalysts characterized by XRD indicate the presence of the anatase phase alone. The materials were also characterized by FTIR, S BET, and UV-VIS DRS. A high TiO2 content produced lower degradation, due to the presence of TiO2 particle aggregates of greater size on the zeolite matrix surface, as evidenced by the calculated crystal size. TiO2/HBETA(20%) presented more activity than TiO2 supported on the other matrices due to higher adsorption of dichlorvos on HBETA. It has more surface area and a lower band gap value too, which makes it more effective. The mineralization degree is lower than the degradation percentage due to the formation of organophosphorous intermediates that are less toxic than the starting material. The complete degradation and mineralization of the pollutant was obtained in 360 and 540 min of reaction with TiO2/HBETA(20%), respectively. This catalyst resulted in degradation percentages close to that of commercial TiO2 P25. The main advantage of supported catalysts is their easy separation and reuse, in this case resulting in a very low activity loss during eight cycles. These materials present suitable properties to be used as catalysts in the photocatalytic treatment of wastewater that contains pesticide dichlorvos in water.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Photodegradation
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Dichlorvos
dc.subject
Titanium Dioxide
dc.subject
Zeolites
dc.subject.classification
Ingeniería Química
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Ingeniería Química
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
dc.title
In situ generated TiO2 over zeolitic supports as reusable photocatalysts for the degradation of dichlorvos
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-04-28T16:22:44Z
dc.journal.volume
162
dc.journal.pagination
167-173
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Gómez, Silvina del Valle. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Centro de Investigacion y Tecnologia Quimica; Argentina
dc.description.fil
Fil: Leal Marchena, Candelaria. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Centro de Investigacion y Tecnologia Quimica; Argentina
dc.description.fil
Fil: Renzini, Maria Soledad. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Centro de Investigacion y Tecnologia Quimica; Argentina
dc.description.fil
Fil: Pizzio, Luis Rene. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; Argentina
dc.description.fil
Fil: Pierella, Liliana Beatriz. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Centro de Investigacion y Tecnologia Quimica; Argentina
dc.journal.title
Applied Catalysis B: Environmental
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcatb.2014.06.047
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http:/www.sciencedirect.com/science/article/pii/S0926337314003865
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.apcatb.2014.06.047
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0926337314003865


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