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Solar photocatalytic degradation of emerging contaminants using NH2-MIL-125 grafted by heterocycles

Author
Muelas Ramos, V.; Peñas Garzón, M.; Rodriguez, J. J.; Bedia García-Matamoros, Jorgeuntranslated; Belver Coldeira, Carolinauntranslated
Entity
UAM. Departamento de Ingeniería Química
Publisher
Elsevier
Date
2022-06-07
Citation
10.1016/j.seppur.2022.121442
Separation and Purification Technology 297 (2022): 121442
 
 
 
ISSN
1383-5866 (print)
DOI
10.1016/j.seppur.2022.121442
Funded by
This research was funded by State Research Agency (PID2019- 106186RB-I00/AEI/10.13039/501100011033). V. Muelas-Ramos thanks to MCIU for BES-2017-082613 grant. M. Penas-Garz ˜ on ´ is indebted to Spanish MECD (FPU16/00576 grant). The authors thank the Research Support Services of the University of Extremadura (SAIUEx) for SEM images
Editor's Version
https://doi.org/10.1016/j.seppur.2022.121442
Subjects
Continuous regime; Emerging contaminantse; Grafting; NH -MIL-125 2; Solar photocatalysis; Química
URI
http://hdl.handle.net/10486/703373
Rights
© 2022 The Authors

Licencia de Creative Commons
Esta obra está bajo una licencia de Creative Commons Reconocimiento-NoComercial-SinObraDerivada 4.0 Internacional.

Abstract

This work reports the photocatalytic performance of NH2-MIL-125 grafted by heterocycles for the removal of contaminants of emerging concern under solar light. Grafting NH2-MIL-125 with different heterocyclic carboxaldehydes reduces the band gap, thanks to the performance of the heterocycle as an antenna for light absorption. Grafting with 3-pyridinecarboxaldehyde (3PA) results in the best light harvesting for the degradation of acetaminophen in different water matrices. The abatement of additional emerging contaminants, i.e., antipyrine and sulfamethoxazole, was also evaluated. The photocatalytic performance depends on the nature of the target compound. Trapping experiments conclude that superoxide radicals are the main reactive species involved in the photodegradation process, while electrons and hydroxyl radicals play a minor role. The 3PA-grafted photocatalyst shows remarkable constant performance in a novel analysis in a continuous flow regime, achieving total conversion of acetaminophen (ACE) for 16 h on stream. The results herein described provide a comprehensive insight into the solar photocatalytic degradation of emerging contaminants using NH2-MIL-125 grafted by aromatic heterocycles
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Google™ Scholar:Muelas Ramos, V. - Peñas Garzón, M. - Rodriguez, J. J. - Bedia García-Matamoros, Jorge - Belver Coldeira, Carolina

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  • Producción científica en acceso abierto de la UAM [17218]

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All the documents from Biblos-e Archivo are protected by copyrights. Some rights reserved.
Universidad Autónoma de Madrid. Biblioteca
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