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A Robust Flow-Through Platform for Organic Contaminant Removal

Achieving the greatest cleanup efficiency with minimal footprint remains a paramount goal of the water treatment industry. Toxic organic compounds threaten drinking water safety and require effective pretreatment. Hydroxyl radicals produced by the Fenton process (Fe(2+)/H(2)O(2)) destroy organic con...

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Autores principales: Chen, Long, Alshawabkeh, Akram N., Hojabri, Shayan, Sun, Meng, Xu, Guiyin, Li, Ju
Formato: Online Artículo Texto
Lenguaje:English
Publicado: 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8341378/
https://www.ncbi.nlm.nih.gov/pubmed/34368791
http://dx.doi.org/10.1016/j.xcrp.2020.100296
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author Chen, Long
Alshawabkeh, Akram N.
Hojabri, Shayan
Sun, Meng
Xu, Guiyin
Li, Ju
author_facet Chen, Long
Alshawabkeh, Akram N.
Hojabri, Shayan
Sun, Meng
Xu, Guiyin
Li, Ju
author_sort Chen, Long
collection PubMed
description Achieving the greatest cleanup efficiency with minimal footprint remains a paramount goal of the water treatment industry. Toxic organic compounds threaten drinking water safety and require effective pretreatment. Hydroxyl radicals produced by the Fenton process (Fe(2+)/H(2)O(2)) destroy organic contaminants based on their strong oxidation potential. An upgraded reaction using solid catalysts, referred to as the Fenton-like process, was recently adopted to avoid the ferric sludge generation during the conventional Fenton process. However, most heterogeneous Fenton-like catalysts operate optimally at pH 3–5 and quite weakly in near-neutral water bodies. Here, we evaluate the feasibility of an electrolytically localized acid compartment (referred to as the Ella process) produced by electrochemical water splitting under flow-through conditions to facilitate the Fenton-like process. The Ella process boosts the activity of an immobilized iron oxychloride catalyst >10-fold, decomposing organic pollutants at a high flow rate. The robust performance in complex water bodies further highlights the promise of this platform.
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spelling pubmed-83413782021-08-05 A Robust Flow-Through Platform for Organic Contaminant Removal Chen, Long Alshawabkeh, Akram N. Hojabri, Shayan Sun, Meng Xu, Guiyin Li, Ju Cell Rep Phys Sci Article Achieving the greatest cleanup efficiency with minimal footprint remains a paramount goal of the water treatment industry. Toxic organic compounds threaten drinking water safety and require effective pretreatment. Hydroxyl radicals produced by the Fenton process (Fe(2+)/H(2)O(2)) destroy organic contaminants based on their strong oxidation potential. An upgraded reaction using solid catalysts, referred to as the Fenton-like process, was recently adopted to avoid the ferric sludge generation during the conventional Fenton process. However, most heterogeneous Fenton-like catalysts operate optimally at pH 3–5 and quite weakly in near-neutral water bodies. Here, we evaluate the feasibility of an electrolytically localized acid compartment (referred to as the Ella process) produced by electrochemical water splitting under flow-through conditions to facilitate the Fenton-like process. The Ella process boosts the activity of an immobilized iron oxychloride catalyst >10-fold, decomposing organic pollutants at a high flow rate. The robust performance in complex water bodies further highlights the promise of this platform. 2021-01-20 /pmc/articles/PMC8341378/ /pubmed/34368791 http://dx.doi.org/10.1016/j.xcrp.2020.100296 Text en https://creativecommons.org/licenses/by/4.0/This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) ).
spellingShingle Article
Chen, Long
Alshawabkeh, Akram N.
Hojabri, Shayan
Sun, Meng
Xu, Guiyin
Li, Ju
A Robust Flow-Through Platform for Organic Contaminant Removal
title A Robust Flow-Through Platform for Organic Contaminant Removal
title_full A Robust Flow-Through Platform for Organic Contaminant Removal
title_fullStr A Robust Flow-Through Platform for Organic Contaminant Removal
title_full_unstemmed A Robust Flow-Through Platform for Organic Contaminant Removal
title_short A Robust Flow-Through Platform for Organic Contaminant Removal
title_sort robust flow-through platform for organic contaminant removal
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8341378/
https://www.ncbi.nlm.nih.gov/pubmed/34368791
http://dx.doi.org/10.1016/j.xcrp.2020.100296
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