Structural and textural features of TiO2/SAPO-34 nanocomposite prepared by the sol–gel method
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Título: | Structural and textural features of TiO2/SAPO-34 nanocomposite prepared by the sol–gel method |
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Autor/es: | Bellatreche, Salima | Hasnaoui, Abdelkrim | Boukoussa, Bouhadjar | García Aguilar, Jaime | Berenguer-Murcia, Ángel | Cazorla-Amorós, Diego | Bengueddach, Abdelkader |
Grupo/s de investigación o GITE: | Materiales Carbonosos y Medio Ambiente |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Instituto Universitario de Materiales |
Palabras clave: | TiO2 | SAPO-34 | TiO2/zeolite | Sol–gel preparation | Methylene blue | Photocatalysis |
Área/s de conocimiento: | Química Inorgánica |
Fecha de publicación: | dic-2016 |
Editor: | Springer Science+Business Media Dordrecht |
Cita bibliográfica: | Research on Chemical Intermediates. 2016, 42(12): 8039-8053. doi:10.1007/s11164-016-2577-9 |
Resumen: | This paper focuses on the synthesis of nanocomposite materials, TiO2/SAPO-34, using the sol–gel method, which involves preparing a mixture between as-synthesized or calcined SAPO-34 zeolite and TiO2 gel under hydrothermal crystallization and then calcining it at 400 °C for the formation of the TiO2 anatase phase. The structural and textural features of the obtained materials were determined by various physico-chemical techniques such as thermogravimetric analysis, X-ray diffraction, scanning electronic microscopy, nitrogen sorption at 77 K, energy dispersive X-ray analysis and ultraviolet–visible spectrometry. The DRX results showed that calcination at 400 °C of the mixture between the calcined SAPO-34 and TiO2 gel led to the collapse of the original framework of zeolite, but formed the anatase TiO2 in a nano-spherical morphology; however, the use of as-synthesized SAPO-34 supports provides a mixture phase between SAPO-34 and TiO2 anatase after calcination. The photocatalytic properties of the SAPO-34/TiO2 and TiO2-type materials were tested for the removal of methylene blue (MB) dye. The MB degradation proved to increase as a function of contact time, catalyst mass and the initial concentration of MB. |
Patrocinador/es: | The authors thank Generalitat Valenciana (PROMETEOII/2014/010) for financial support. |
URI: | http://hdl.handle.net/10045/62190 |
ISSN: | 0922-6168 (Print) | 1568-5675 (Online) |
DOI: | 10.1007/s11164-016-2577-9 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © Springer Science+Business Media Dordrecht 2016. The final publication is available at Springer via http://dx.doi.org/10.1007/s11164-016-2577-9 |
Revisión científica: | si |
Versión del editor: | http://dx.doi.org/10.1007/s11164-016-2577-9 |
Aparece en las colecciones: | INV - MCMA - Artículos de Revistas |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
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2016_Bellatreche_etal_ResChemIntermed_final.pdf | Versión final (acceso restringido) | 1,39 MB | Adobe PDF | Abrir Solicitar una copia |
2016_Bellatreche_etal_ResChemIntermed_revised.pdf | Versión revisada (acceso abierto) | 1,42 MB | Adobe PDF | Abrir Vista previa |
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