Advanced Removal of Dyes with Tuning Carbon/TiO2 Composite Properties
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Título: | Advanced Removal of Dyes with Tuning Carbon/TiO2 Composite Properties |
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Autor/es: | Yankovych, Halyna Bodnar | Abreu-Jaureguí, Coset | Farrando Pérez, Judit | Melnyk, Inna | Václavíková, Miroslava | Silvestre-Albero, Joaquín |
Grupo/s de investigación o GITE: | Materiales Avanzados |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Instituto Universitario de Materiales |
Palabras clave: | Water treatment | Carbon composites | Photocatalysis | Degradation of organic dyes | Textile effluents |
Fecha de publicación: | 3-feb-2024 |
Editor: | MDPI |
Cita bibliográfica: | Nanomaterials. 2024, 14(3): 309. https://doi.org/10.3390/nano14030309 |
Resumen: | This study evaluates the removal of several dyes with different charge properties, i.e., anionic (Acid Red 88), cationic (Basic Red 13), and neutral (Basic Red 5) using transition metal-doped TiO2 supported on a high-surface-area activated carbon. Experimental results confirm the successful deposition of TiO2 and the derivatives (Zr-, Cu-, and Ce-doped samples) on the surface of the activated carbon material and the development of extended heterojunctions with improved electronic properties. Incorporating a small percentage of dopants significantly improves the adsorption properties of the composites towards the three dyes evaluated, preferentially for sample AC/TiO2_Zr. Similarly, the photodegradation efficiency highly depends on the nature of the composite evaluated and the characteristics of the dye. Sample AC/TiO2_Zr demonstrates the best overall removal efficiency for Acid Red 88 and Basic Red 5—83% and 63%, respectively. This promising performance must simultaneously be attributed to a dual mechanism, i.e., adsorption and photodegradation. Notably, the AC/TiO2_Ce outperformed the other catalysts in eliminating Basic Red 13 (74%/6 h). A possible Acid Red 88 degradation mechanism using AC/TiO2_Zr was proposed. This study shows that the removal efficiency of AC/TiO2 composites strongly depends on both the material and pollutant. |
Patrocinador/es: | This research was supported by Štefan Schwarz Postdoc Fellowship No. 2022/OV1/010, the Marie Curie Programme H2020-MSCA-RISE-2016-NANOMED No. 734641, and APVV-19-0302 projects. J.S.-A. acknowledges financial support from MCIN/AEI/10.13039/501100011033 and EU NextGeneration/PRTR (Project PCI2020-111968/ERANET-M/3D-Photocat), MCIN (Project PID2019-108453GB-C21), and Conselleria de Innovación, Universidades, Ciencia y Sociedad Digital, Generalitat Valenciana (Project CIPROM/2021/022). |
URI: | http://hdl.handle.net/10045/140739 |
ISSN: | 2079-4991 |
DOI: | 10.3390/nano14030309 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.3390/nano14030309 |
Aparece en las colecciones: | INV - LMA - Artículos de Revistas Investigaciones financiadas por la UE |
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Yankovych_etal_2024_Nanomaterials.pdf | 3,76 MB | Adobe PDF | Abrir Vista previa | |
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