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Article

ZnO:CuO Composites Obtained by Rapid Joule Heating for Photocatalysis

by
Adrián Fernández-Calzado
,
Aarón Calvo-Villoslada
,
Paloma Fernández
* and
Belén Sotillo
Materials Physics Department, Faculty of Physics, Complutense University of Madrid, 28040 Madrid, Spain
*
Author to whom correspondence should be addressed.
Current address: Madrid Institute for Advanced Studies (IMDEA-Nanoscience), Campus de Cantoblanco, 28049 Madrid, Spain.
Materials 2024, 17(14), 3502; https://doi.org/10.3390/ma17143502
Submission received: 2 June 2024 / Revised: 2 July 2024 / Accepted: 9 July 2024 / Published: 15 July 2024
(This article belongs to the Special Issue Design and Applications of Functional Materials, Volume II)

Abstract

Semiconductor oxides belonging to various families are ideal candidates for application in photocatalytic processes. One of the challenges facing photocatalytic processes today is improving their efficiency under sunlight irradiation. In this study, the growth and characterization of semiconductor oxide nanostructures and composites based on the ZnO and CuO families are proposed. The selected growth method is the resistive heating of Zn and Cu wires to produce the corresponding oxides, combined with galvanic corrosion of Zn. An exhaustive characterization of the materials obtained has been carried out using techniques based on scanning electron microscopy and optical spectroscopies. The method we have followed and the conditions used in this study present promising results, not only from a degradation efficiency point of view but also because it is a cheap, easy, and fast growth method. These characteristics are essential in order to scale the process beyond the laboratory.
Keywords: zinc oxide; copper oxide; photocatalysis; Joule heating; galvanic corrosion zinc oxide; copper oxide; photocatalysis; Joule heating; galvanic corrosion

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MDPI and ACS Style

Fernández-Calzado, A.; Calvo-Villoslada, A.; Fernández, P.; Sotillo, B. ZnO:CuO Composites Obtained by Rapid Joule Heating for Photocatalysis. Materials 2024, 17, 3502. https://doi.org/10.3390/ma17143502

AMA Style

Fernández-Calzado A, Calvo-Villoslada A, Fernández P, Sotillo B. ZnO:CuO Composites Obtained by Rapid Joule Heating for Photocatalysis. Materials. 2024; 17(14):3502. https://doi.org/10.3390/ma17143502

Chicago/Turabian Style

Fernández-Calzado, Adrián, Aarón Calvo-Villoslada, Paloma Fernández, and Belén Sotillo. 2024. "ZnO:CuO Composites Obtained by Rapid Joule Heating for Photocatalysis" Materials 17, no. 14: 3502. https://doi.org/10.3390/ma17143502

APA Style

Fernández-Calzado, A., Calvo-Villoslada, A., Fernández, P., & Sotillo, B. (2024). ZnO:CuO Composites Obtained by Rapid Joule Heating for Photocatalysis. Materials, 17(14), 3502. https://doi.org/10.3390/ma17143502

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