Exceptional performance of Fe@carbon-rich nanoparticles prepared via hydrothermal carbonization of oil mill wastes for H2S removal
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Título: | Exceptional performance of Fe@carbon-rich nanoparticles prepared via hydrothermal carbonization of oil mill wastes for H2S removal |
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Autor/es: | Abid, Meriem | Garcia, Ruben | Martinez-Escandell, Manuel | Fullana, Andres | Silvestre-Albero, Joaquín |
Grupo/s de investigación o GITE: | Materiales Avanzados | Ingeniería para la Economía Circular (I4CE) |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Departamento de Ingeniería Química | Universidad de Alicante. Instituto Universitario de Materiales | Universidad de Alicante. Instituto Universitario de Ingeniería de los Procesos Químicos |
Palabras clave: | Hydrothermal carbonization | Core-shell nanoparticles | Fe@C | H2S |
Fecha de publicación: | 28-abr-2024 |
Editor: | Elsevier |
Cita bibliográfica: | Chemosphere. 2024, 358: 142140. https://doi.org/10.1016/j.chemosphere.2024.142140 |
Resumen: | Carbon-encapsulated iron oxide nanoparticles (CE-nFe) have been obtained from an industrial waste (oil mill wastewater-OMW, as a carbonaceous source), and using iron sulfate as metallic precursor. In an initial step, the hydrochar obtained has been thermally activated under an inert atmosphere at three different temperatures (600°C, 800°C and 1000°C). The thermal treatment promotes the development of core-shell nanoparticles, with an inner core of α-Fe/Fe3O4 surrounded by a well-defined graphite shell. Temperatures above 800°C are needed to promote the graphitization of the carbonaceous species, a process promoted by iron nanoparticles through the dissolution, diffusion and growth of the carbon nanostructures on the outer shell. Breakthrough column tests show that CE-nFe exhibit an exceptional performance for H2S removal with a breakthrough capacity larger than 0.5-0.6 g H2S/gcatalyst after 3 days experiment. Experimental results anticipate the crucial role of humidity and oxygen in the adsorption/catalytic performance. Compared to some commercial samples, these results constitute a three-fold increase in the catalytic performance under similar experimental conditions. |
Patrocinador/es: | J.S.A acknowledges financial support from MCIN/AEI/10.13039/501100011033 and EU NextGeneration/PRTR (Project PCI2020-111968/3D-Photocat), MCIN (Project PID2019-108453GB-C21) and Conselleria de Innovación, Universidades, Ciencia y Sociedad Digital, Generalitat Valenciana (Project CIPROM/2021/022). M.A. acknowledges financial support from the Algerian Ministry of Higher Education and Scientific Research. |
URI: | http://hdl.handle.net/10045/142505 |
ISSN: | 0045-6535 (Print) | 1879-1298 (Online) |
DOI: | 10.1016/j.chemosphere.2024.142140 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2024 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.1016/j.chemosphere.2024.142140 |
Aparece en las colecciones: | INV - I4CE - Artículos de Revistas INV - LMA - Artículos de Revistas |
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Abid_etal_2024_Chemosphere.pdf | 3,83 MB | Adobe PDF | Abrir Vista previa | |
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