All-in-one continuous electrochemical monitoring of 2-phenylphenol removal from water by electro-Fenton treatment
Por favor, use este identificador para citar o enlazar este ítem:
http://hdl.handle.net/10045/140805
Título: | All-in-one continuous electrochemical monitoring of 2-phenylphenol removal from water by electro-Fenton treatment |
---|---|
Autor/es: | Gomis-Berenguer, Alicia | Casanova, Ana | Banks, Craig E. | Iniesta, Jesus |
Grupo/s de investigación o GITE: | Electroquímica Aplicada y Electrocatálisis |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Química Física | Universidad de Alicante. Instituto Universitario de Electroquímica |
Palabras clave: | 2-Phenylphenol | Carbon black | Oxidised carbon black | Electro-fenton | Screen-printed carbon electrodes | Electrochemical sensor |
Fecha de publicación: | 15-feb-2024 |
Editor: | Elsevier |
Cita bibliográfica: | Talanta. 2024, 272: 125761. https://doi.org/10.1016/j.talanta.2024.125761 |
Resumen: | The biggest allure of heterogeneous electro-Fenton (HEF) processes largely fails on its high efficiency for the degradation of a plethora of hazardous compounds present in water, but still challenging to search for good and cost-effective electrocatalyst. In this work, carbon black (CB) and oxidised carbon black (CBox) materials were investigated as cathodes in the electrochemical production of hydrogen peroxide involved in HEF reaction for the degradation of 2-phenylphenol (2PP) as a target pollutant. The electrodes were fabricated by employing carbon cloth as support, and the highest H2O2 production yields were obtained for the CBox, pointing out the beneficial effect of the hydrophilic character of the electrode and oxygen-type functionalization of the carbonaceous surface. HEF degradation of 2PP was explored at − 0.7 V vs. Ag/AgCl exhibiting the best conversion rates and degradation grade (total organic carbon) for the CBox-based cathode. In addition, the incorporation of an electrochemical sensor of 2PP in line with the HEF reactor was accomplished by the use of screen-printed electrodes (SPE) in order to monitor the pollutant degradation. The electrochemical sensor performance was evaluated from the oxidation of 2PP in the presence of Fe2+ ions by using square wave voltammetry (SWV) technique. The best electrochemical sensor performance was based on SPE modified with Meldola Blue showing a high sensitivity, low detection limit (0.12 ppm) and wide linear range (0.5–21 ppm) with good reproducibility (RSD 2.3 %). The all-in-one electrochemical station has been successfully tested for the degradation and quantification of 2PP, obtaining good recoveries analysing spiked waters from different water matrices origins. |
Patrocinador/es: | AG-B thanks European Union NextGenerationEU (ZAMBRANO21-10) for the funding. AC is grateful for the Make Our Planet Great Again fellowship (MOPGA-ref.147446Y) implemented by Campus France and funded by the French Ministry of Foreign Affairs. JI thanks Spanish MINICINN (PID2019-108136RB-C32) for its financial support. |
URI: | http://hdl.handle.net/10045/140805 |
ISSN: | 0039-9140 (Print) | 1873-3573 (Online) |
DOI: | 10.1016/j.talanta.2024.125761 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2024 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.1016/j.talanta.2024.125761 |
Aparece en las colecciones: | INV - LEQA - Artículos de Revistas |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
---|---|---|---|---|
Gomis-Berenguer_etal_2024_Talanta.pdf | 2,73 MB | Adobe PDF | Abrir Vista previa | |
Todos los documentos en RUA están protegidos por derechos de autor. Algunos derechos reservados.