Ti-Fe mixed oxides as photocatalysts in the generation of hydrogen under UV-light irradiation
Por:
Perez-Larios, A., Torres-Ramos, I, M., Gonzalez-Vargas, O. A., Rico, Jose L., Zanella, R.
Publicada:
15 ago 2022
Resumen:
Ti-Fe mixed oxides were prepared by sol-gel and used as photocatalysts
for the generation H-2 from water. The solids were characterized by
SEM-EDS, N-2 physisorption, XRD, UV-Vis and XPS spectroscopy. The mixed
oxides present larger specific surface areas (83-205m(2)/g) than that of
pure TiO2 (64 m(2)/g). The XRD patterns of the Ti-Fe solids resemble
that of anatase titania. The band gap energies of the solids vary from
3.0 to 2.5 eV and are smaller than that of TiO2 (3.2 eV). The mixed
oxides were tested as photocatalysts in the production of hydrogen from
water using methanol as a sacrificial agent. In all cases, their
catalytic activities were higher than that exhibited by TiO2 after 10 h
of reaction. (C) 2022 Hydrogen Energy Publications LLC. Published by
Elsevier Ltd. All rights reserved.
Filiaciones:
Perez-Larios, A.:
Laboratorio de Investigación en Materiales, Agua y Energía, Engineering Department, Campus Los Altos, University of Guadalajara, Av. Rafael Casillas Aceves 1200, Tepatitlan de Morelos, Jalisco 47600, Mexico
Instituto de Ciencias Aplicadas y Tecnologia, Universidad Nacional Autónoma de México, Circuito Exterior S/N, Mexico City, 04510, Mexico
Torres-Ramos, I, M.:
Laboratorio de Investigación en Materiales, Agua y Energía, Engineering Department, Campus Los Altos, University of Guadalajara, Av. Rafael Casillas Aceves 1200, Tepatitlan de Morelos, Jalisco 47600, Mexico
Gonzalez-Vargas, O. A.:
Departamento de Ingeniería en Control y Automatización, Escuela Superior de Ingeniería Mecánica y Eléctrica-Zacatenco, Instituto Politécnico Nacional, UPALM, Av. Politécnico S/N, Col. Zacatenco, Alcaldía Gustavo A. Madero, Ciudad de México, 07738, Mexico
Rico, Jose L.:
Department of Chemical Engineering, Laboratorio de Catálisis, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, 58060, Mexico
Zanella, R.:
Instituto de Ciencias Aplicadas y Tecnologia, Universidad Nacional Autónoma de México, Circuito Exterior S/N, Mexico City, 04510, Mexico
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