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Incorporation of photoactive TiO2 in an aluminosilicate inorganic polymer by ion exchange

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Incorporation of photoactive TiO2 in an aluminosilicate inorganic polymer by ion exchange

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dc.contributor.author Gasca-Tirado, José Ramón es_ES
dc.contributor.author Manzano Ramirez, Alejandro es_ES
dc.contributor.author Villaseñor-Mora, Carlos es_ES
dc.contributor.author Muñiz-Villarreal, M. S. es_ES
dc.contributor.author Zaldivar-Cadena, A. A. es_ES
dc.contributor.author Rubio-Ávalos, José Carlos es_ES
dc.contributor.author Amigó Borrás, Vicente es_ES
dc.contributor.author Nava Mendoza, Rufino es_ES
dc.date.accessioned 2014-06-10T11:36:41Z
dc.date.issued 2012-05-01
dc.identifier.issn 1387-1811
dc.identifier.uri http://hdl.handle.net/10251/38039
dc.description.abstract In the present paper, it is described a procedure to ion exchange in an aluminosilicate inorganic polymer (geopolymer) in order to incorporate photoactive TiO 2. Metakaolin base geopolymers synthesized at 40 and 90 °C were chosen to be ion-exchanged with a solutions of (NH 4) 2 TiO (C 2O 4) 2-H 2O with and without previous treatment with NH 4Cl. The final geopolymers were characterized by SEM, FT-IR, Raman, XRD, BET, UV/Vis spectroscopy and fluorescence. It was confirmed that ion-exchange method incorporated anatase TiO 2 particles inside the geopolymer, affecting the geopolymers bond vibration modes of the AlO 4-SiO 4 framework. The observed blue shift in the UV/Vis spectra, suggest that those TiO 2 nanoparticles grew inside the micropores of the geopolymer producing quantum size effects. The photoactivity of such particles was determined by means of photoluminescent spectra and bleaching of methylene blue (MB), which confirms the potential applications of ion-exchanged geopolymers (IEGs) for photocatalytic purposes. © 2011 Elsevier Inc. All rights reserved. es_ES
dc.description.sponsorship J.R. Gasca-Tirado wants to thank CONACYT for scholarship and to A. Galindo-Sifuentes, M.A. Hernandez-Landaverde, J.E. Urbina-Alvarez, F. Rodriguez-Melgarejo, A. Mauricio-Sanchez, J.L. Ojeda-Elizarraras, M.S. Garcia-Guillen, C. Vazquez-Ramos and G. Fonseca-Hernandez for their kind technical assistance. en_EN
dc.format.extent 6 es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation CONACYT es_ES
dc.relation.ispartof Microporous and Mesoporous Materials es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Geopolymer es_ES
dc.subject Ion exchange es_ES
dc.subject Optical properties es_ES
dc.subject Porosity es_ES
dc.subject TiO 2 es_ES
dc.subject Anatase TiO es_ES
dc.subject Blue shift es_ES
dc.subject Ion-exchange methods es_ES
dc.subject Metakaolins es_ES
dc.subject Methylene blue es_ES
dc.subject Micropores es_ES
dc.subject Photo-catalytic es_ES
dc.subject Photoactivity es_ES
dc.subject Photoluminescent spectra es_ES
dc.subject Potential applications es_ES
dc.subject Quantum size effects es_ES
dc.subject TiO es_ES
dc.subject UV/ Vis spectroscopy es_ES
dc.subject UV/Vis spectra es_ES
dc.subject Vibration modes es_ES
dc.subject XRD es_ES
dc.subject Aluminosilicates es_ES
dc.subject Geopolymers es_ES
dc.subject Ions es_ES
dc.subject Silicon compounds es_ES
dc.subject Titanium dioxide es_ES
dc.subject Ultraviolet visible spectroscopy es_ES
dc.subject Inorganic polymers es_ES
dc.subject.classification CIENCIA DE LOS MATERIALES E INGENIERIA METALURGICA es_ES
dc.title Incorporation of photoactive TiO2 in an aluminosilicate inorganic polymer by ion exchange es_ES
dc.type Artículo es_ES
dc.embargo.lift 10000-01-01
dc.embargo.terms forever es_ES
dc.identifier.doi 10.1016/j.micromeso.2011.11.026
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto de Tecnología de Materiales - Institut de Tecnologia de Materials es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Mecánica y de Materiales - Departament d'Enginyeria Mecànica i de Materials es_ES
dc.description.bibliographicCitation Gasca-Tirado, JR.; Manzano Ramirez, A.; Villaseñor-Mora, C.; Muñiz-Villarreal, MS.; Zaldivar-Cadena, AA.; Rubio-Ávalos, JC.; Amigó Borrás, V.... (2012). Incorporation of photoactive TiO2 in an aluminosilicate inorganic polymer by ion exchange. Microporous and Mesoporous Materials. 153:282-287. doi:10.1016/j.micromeso.2011.11.026 es_ES
dc.description.accrualMethod Senia es_ES
dc.relation.publisherversion http://dx.doi.org/10.1016/j.micromeso.2011.11.026 es_ES
dc.description.upvformatpinicio 282 es_ES
dc.description.upvformatpfin 287 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 153 es_ES
dc.relation.senia 217996


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