Please use this identifier to cite or link to this item:
Title: Replacing carbon cloth by nickel mesh as substrate for air-diffusion cathodes: H2O2 production and carbenicillin degradation by photoelectro-Fenton
Author: Ren, Gengbo
Lanzalaco, Sonia
Zhou, Minghua
Cabot Julià, Pere-Lluís
Brillas, Enric
Sirés Sadornil, Ignacio
Keywords: Elèctrodes
Issue Date: 19-Nov-2022
Publisher: Elsevier B.V.
Abstract: The development of air-diffusion electrodes (ADEs) that electrocatalytically produce H2O2 for its decomposition by Fenton's reaction is gaining relevance. However, attention has been paid to improve the catalytic layer using standard carbonaceous substrates like Ccloth. This work clearly proves the superior endurance of 3 cm2 ADEs fabricated with Nimesh as substrate, achieving stable H2O2 accumulation up to 60 mM at 100 mA for 48 h in an undivided cell. Consequently, the antibiotic carbenicillin could be totally degraded in 13 min by photoelectro- Fenton (PEF) process using the Nimesh|C-PTFE ADE at 20 mA in an acidic model solution. This high performance was confirmed by PEF treatment in urban wastewater, reaching total drug disappearance in 18 min with >80 % TOC abatement. The time course of ¿OH and toxicity was monitored, whereas chromatographic analysis of treated solutions revealed the formation of 32 aromatic and 16 aliphatic byproducts, including 7 linear carboxylic acids.
Note: Reproducció del document publicat a:
It is part of: Chemical Engineering Journal, 2022, vol. 454, p. 140515
Related resource:
ISSN: 1385-8947
Appears in Collections:Articles publicats en revistes (Ciència dels Materials i Química Física)

Files in This Item:
File Description SizeFormat 
727096.pdf1.18 MBAdobe PDFView/Open

This item is licensed under a Creative Commons License Creative Commons