Synthesis of TiO2/Nanozeolite Composites for Highly Efficient Photocatalytic Oxidation of Propene in the Gas Phase
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Título: | Synthesis of TiO2/Nanozeolite Composites for Highly Efficient Photocatalytic Oxidation of Propene in the Gas Phase |
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Autor/es: | Fernández-Catalá, Javier | Sánchez Rubio, Miriam | Navlani-García, Miriam | Berenguer-Murcia, Ángel | Cazorla-Amorós, Diego |
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 | Nanozeolite | Photocatalytic oxidation | Propene | Gas phase |
Área/s de conocimiento: | Química Inorgánica |
Fecha de publicación: | 25-nov-2020 |
Editor: | American Chemical Society |
Cita bibliográfica: | ACS Omega. 2020, 5(48): 31323-31331. https://doi.org/10.1021/acsomega.0c04793 |
Resumen: | In this work, we reported the preparation of composites based on titania (TiO2) and Zeolite Socony Mobil-5 (ZSM-5) nanozeolite, following two approaches (i.e., incorporating the presynthesized zeolite in the synthesis medium of TiO2 and incorporating presynthesized TiO2 in the synthesis medium of ZSM-5). The materials synthesized were characterized by X-ray fluorescence (XRF), X-ray diffraction (XRD), nitrogen adsorption, X-ray photoelectron spectroscopy (XPS), ultraviolet–visible spectroscopy (UV–vis), transmission electron microscopy (TEM), scanning electron microscopy (SEM), and energy-dispersive X-ray (EDX) spectrometry analysis, and their photocatalytic activities were assessed in the oxidation of propene in the gas phase. It was observed that the synthesis methodology affects the final properties of the composite, which ultimately affected their photocatalytic performance in the studied application. It was found that the Nano-ZSM5/TiO2 composite was the most active among the investigated samples, which was attributed to the intimate contact between the two components of the composite, the preserved properties of the photocatalytic active phase in the final material, and the positive contribution of the nanozeolite by increasing the local concentration of propene. |
Patrocinador/es: | The authors thank Ministerio de Ciencia Innovación y Universidades and FEDER (Project RTI2018-095291-B-I00) and the Generalitat Valenciana (PROMETEOII/2018/076) for financial support. J.F.-C. thanks MINECO for a researcher formation grant (BES-2016-078079). M.N.-G. gratefully acknowledges Generalitat Valenciana and Plan GenT (CDEIGENT/2018/027) for the postdoctoral grant. |
URI: | http://hdl.handle.net/10045/110923 |
ISSN: | 2470-1343 |
DOI: | 10.1021/acsomega.0c04793 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2020 American Chemical Society. This is an open access article published under a Creative Commons Non-Commercial No Derivative Works (CC-BY-NC-ND) Attribution License, which permits copying and redistribution of the article, and creation of adaptations, all for non-commercial purposes. |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.1021/acsomega.0c04793 |
Aparece en las colecciones: | INV - MCMA - Artículos de Revistas |
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Fernandez-Catala_etal_2020_ACSOmega.pdf | 4,34 MB | Adobe PDF | Abrir Vista previa | |
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