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Modification of fibrous membrane for organic and pathogenic contaminants removal: from design to application
In this study, a flexible multifunctional fibrous membrane for heterogeneous Fenton-like removal of organic and pathogenic contaminants from wastewater was developed by immobilizing zerovalent iron nanoparticles (Fe-NPs) on an amine/thiol grafted polyester membrane. Full characterization of the resu...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9051422/ https://www.ncbi.nlm.nih.gov/pubmed/35492101 http://dx.doi.org/10.1039/d0ra01362e |
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author | Neaz Morshed, Mohammad Behary, Nemeshwaree Bouazizi, Nabil Vieillard, Julien Guan, Jinping Le Derf, Franck Nierstrasz, Vincent |
author_facet | Neaz Morshed, Mohammad Behary, Nemeshwaree Bouazizi, Nabil Vieillard, Julien Guan, Jinping Le Derf, Franck Nierstrasz, Vincent |
author_sort | Neaz Morshed, Mohammad |
collection | PubMed |
description | In this study, a flexible multifunctional fibrous membrane for heterogeneous Fenton-like removal of organic and pathogenic contaminants from wastewater was developed by immobilizing zerovalent iron nanoparticles (Fe-NPs) on an amine/thiol grafted polyester membrane. Full characterization of the resulting polyester membranes allowed validation of successful grafting of amine/thiol (NH(2) or SH) functional groups and immobilization of Fe-NPs (50–150 nm). The Fenton-like functionality of iron immobilized fibrous membranes (PET–Fe, PET–Si–NH(2)–Fe, PET–NH(2)–Fe, and PET–SH–Fe) in the presence of hydrogen peroxide (H(2)O(2)) was comparatively studied in the removal of crystal violet dye (50 mg L(−1)). The effect of pH, amount of iron and H(2)O(2) concentration on dye removal was systematically investigated. The highest dye removal yield reached 98.87% in 22 min at a rate constant 0.1919 min(−1) (R(2) = 95.36) for PET–SH–Fe providing 78% toxicity reduction assessed by COD analysis. These membranes could be reused for up to seven repeated cycles. Kinetics and postulated mechanism of colour removal were proposed by examining the above results. In addition, the resultant membranes showed substantial antibacterial activity against pathogenic bacteria (Staphylococcus epidermidis, Escherichia coli) strains studied through disc diffusion-zone inhibitory and optical density analysis. These findings are of great importance because they provide a prospect of textile-based flexible catalysts in heterogeneous Fenton-like systems for environmental and green chemistry applications. |
format | Online Article Text |
id | pubmed-9051422 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90514222022-04-29 Modification of fibrous membrane for organic and pathogenic contaminants removal: from design to application Neaz Morshed, Mohammad Behary, Nemeshwaree Bouazizi, Nabil Vieillard, Julien Guan, Jinping Le Derf, Franck Nierstrasz, Vincent RSC Adv Chemistry In this study, a flexible multifunctional fibrous membrane for heterogeneous Fenton-like removal of organic and pathogenic contaminants from wastewater was developed by immobilizing zerovalent iron nanoparticles (Fe-NPs) on an amine/thiol grafted polyester membrane. Full characterization of the resulting polyester membranes allowed validation of successful grafting of amine/thiol (NH(2) or SH) functional groups and immobilization of Fe-NPs (50–150 nm). The Fenton-like functionality of iron immobilized fibrous membranes (PET–Fe, PET–Si–NH(2)–Fe, PET–NH(2)–Fe, and PET–SH–Fe) in the presence of hydrogen peroxide (H(2)O(2)) was comparatively studied in the removal of crystal violet dye (50 mg L(−1)). The effect of pH, amount of iron and H(2)O(2) concentration on dye removal was systematically investigated. The highest dye removal yield reached 98.87% in 22 min at a rate constant 0.1919 min(−1) (R(2) = 95.36) for PET–SH–Fe providing 78% toxicity reduction assessed by COD analysis. These membranes could be reused for up to seven repeated cycles. Kinetics and postulated mechanism of colour removal were proposed by examining the above results. In addition, the resultant membranes showed substantial antibacterial activity against pathogenic bacteria (Staphylococcus epidermidis, Escherichia coli) strains studied through disc diffusion-zone inhibitory and optical density analysis. These findings are of great importance because they provide a prospect of textile-based flexible catalysts in heterogeneous Fenton-like systems for environmental and green chemistry applications. The Royal Society of Chemistry 2020-04-01 /pmc/articles/PMC9051422/ /pubmed/35492101 http://dx.doi.org/10.1039/d0ra01362e Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Neaz Morshed, Mohammad Behary, Nemeshwaree Bouazizi, Nabil Vieillard, Julien Guan, Jinping Le Derf, Franck Nierstrasz, Vincent Modification of fibrous membrane for organic and pathogenic contaminants removal: from design to application |
title | Modification of fibrous membrane for organic and pathogenic contaminants removal: from design to application |
title_full | Modification of fibrous membrane for organic and pathogenic contaminants removal: from design to application |
title_fullStr | Modification of fibrous membrane for organic and pathogenic contaminants removal: from design to application |
title_full_unstemmed | Modification of fibrous membrane for organic and pathogenic contaminants removal: from design to application |
title_short | Modification of fibrous membrane for organic and pathogenic contaminants removal: from design to application |
title_sort | modification of fibrous membrane for organic and pathogenic contaminants removal: from design to application |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9051422/ https://www.ncbi.nlm.nih.gov/pubmed/35492101 http://dx.doi.org/10.1039/d0ra01362e |
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