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dc.contributor.author
Gómez, Silvina del Valle
dc.contributor.author
Leal Marchena, Candelaria
dc.contributor.author
Pizzio, Luis Rene
dc.contributor.author
Pierella, Liliana Beatriz
dc.date.available
2016-09-01T21:28:45Z
dc.date.issued
2013-04
dc.identifier.citation
Gómez, Silvina del Valle; Leal Marchena, Candelaria; Pizzio, Luis Rene; Pierella, Liliana Beatriz; Preparation and characterization of TiO2/HZSM-11 zeolite forphotodegradation of dichlorvos in aqueous solution; Elsevier; Journal of Hazardous Materials; 258-259; 4-2013; 19-26
dc.identifier.issn
0304-3894
dc.identifier.uri
http://hdl.handle.net/11336/7397
dc.description.abstract
The TiO2/HZSM-11 materials were synthesized using titanium isopropoxide as a TiO2precursor andHZSM-11 a medium pore size zeolite with high thermal and chemical resistance as support. The amountof titanium isopropoxide was varied in order to obtain TiO2concentrations of 3, 10, 20, 30 and 50 wt%in the final material. They were characterized by a series of complementary techniques: X-ray diffrac-tion (XRD), ultraviolet?visible diffuse reflectance spectroscopy (DRS), transmittance Fourier transforminfrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The surface area of the TiO2/HZSM-11 samples decreased with the increment of TiO2loading. As result of the increment of the calcinationtemperature from 450 to 800◦C an increase in the size of the anatase crystals was observed. However,the X-ray diffraction patterns of the solids only presented the characteristic peaks of the anatase phase.The catalytic activity of the materials in the photodegradation of Dichlorvos (DDVP) depended on theTiO2amount the thermal treatment temperature. The sample containing 30% TiO2calcined at 450◦Cshowed the best catalytic performance and it can be reused without noticeable activity loss during atleast four cycles. The catalytic performance was similar to that of the P25 Degussa used as a referencebut its separation, recovery and reuse was easier.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Dichlorvos
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Photodegradation
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Tio2/Zeolite
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Characterization
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Ingeniería de Procesos Químicos
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Ingeniería Química
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INGENIERÍAS Y TECNOLOGÍAS
dc.title
Preparation and characterization of TiO2/HZSM-11 zeolite forphotodegradation of dichlorvos in aqueous solution
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-04-28T17:11:29Z
dc.journal.volume
258-259
dc.journal.pagination
19-26
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: 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
Journal of Hazardous Materials
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0304389413002859
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.jhazmat.2013.04.030
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