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Sodium Chloroacetate Modified Polyethyleneimine/Trimesic Acid Nanofiltration Membrane to Improve Antifouling Performance
Nanofiltration (NF) is a separation technology with broad application prospects. Membrane fouling is an important bottleneck-restricting technology development. In the past, we prepared a positively charged polyethyleneimine/trimesic acid (PEI/TMA) NF membrane with excellent performance. Inevitably,...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8466547/ https://www.ncbi.nlm.nih.gov/pubmed/34564521 http://dx.doi.org/10.3390/membranes11090705 |
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author | Gu, Kaifeng Pang, Sichen Zhou, Yong Gao, Congjie |
author_facet | Gu, Kaifeng Pang, Sichen Zhou, Yong Gao, Congjie |
author_sort | Gu, Kaifeng |
collection | PubMed |
description | Nanofiltration (NF) is a separation technology with broad application prospects. Membrane fouling is an important bottleneck-restricting technology development. In the past, we prepared a positively charged polyethyleneimine/trimesic acid (PEI/TMA) NF membrane with excellent performance. Inevitably, it also faces poor resistance to protein contamination. Improving the antifouling ability of the PEI/TMA membrane can be achieved by considering the hydrophilicity and chargeability of the membrane surface. In this work, sodium chloroacetate (ClCH(2)COONa) is used as a modifier and is grafted onto the membrane surface. Additionally, 0.5% ClCH(2)COONa and 10 h modification time are the best conditions. Compared with the original membrane (M0, 17.2 L m(−2) h(−1)), the initial flux of the modified membrane (M0-e, 30 L m(−2) h(−1)) was effectively increased. After filtering the bovine albumin (BSA) solution, the original membrane flux dropped by 47% and the modified membrane dropped by 6.2%. The modification greatly improved the antipollution performance of the PEI/TMA membrane. |
format | Online Article Text |
id | pubmed-8466547 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-84665472021-09-27 Sodium Chloroacetate Modified Polyethyleneimine/Trimesic Acid Nanofiltration Membrane to Improve Antifouling Performance Gu, Kaifeng Pang, Sichen Zhou, Yong Gao, Congjie Membranes (Basel) Article Nanofiltration (NF) is a separation technology with broad application prospects. Membrane fouling is an important bottleneck-restricting technology development. In the past, we prepared a positively charged polyethyleneimine/trimesic acid (PEI/TMA) NF membrane with excellent performance. Inevitably, it also faces poor resistance to protein contamination. Improving the antifouling ability of the PEI/TMA membrane can be achieved by considering the hydrophilicity and chargeability of the membrane surface. In this work, sodium chloroacetate (ClCH(2)COONa) is used as a modifier and is grafted onto the membrane surface. Additionally, 0.5% ClCH(2)COONa and 10 h modification time are the best conditions. Compared with the original membrane (M0, 17.2 L m(−2) h(−1)), the initial flux of the modified membrane (M0-e, 30 L m(−2) h(−1)) was effectively increased. After filtering the bovine albumin (BSA) solution, the original membrane flux dropped by 47% and the modified membrane dropped by 6.2%. The modification greatly improved the antipollution performance of the PEI/TMA membrane. MDPI 2021-09-14 /pmc/articles/PMC8466547/ /pubmed/34564521 http://dx.doi.org/10.3390/membranes11090705 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Gu, Kaifeng Pang, Sichen Zhou, Yong Gao, Congjie Sodium Chloroacetate Modified Polyethyleneimine/Trimesic Acid Nanofiltration Membrane to Improve Antifouling Performance |
title | Sodium Chloroacetate Modified Polyethyleneimine/Trimesic Acid Nanofiltration Membrane to Improve Antifouling Performance |
title_full | Sodium Chloroacetate Modified Polyethyleneimine/Trimesic Acid Nanofiltration Membrane to Improve Antifouling Performance |
title_fullStr | Sodium Chloroacetate Modified Polyethyleneimine/Trimesic Acid Nanofiltration Membrane to Improve Antifouling Performance |
title_full_unstemmed | Sodium Chloroacetate Modified Polyethyleneimine/Trimesic Acid Nanofiltration Membrane to Improve Antifouling Performance |
title_short | Sodium Chloroacetate Modified Polyethyleneimine/Trimesic Acid Nanofiltration Membrane to Improve Antifouling Performance |
title_sort | sodium chloroacetate modified polyethyleneimine/trimesic acid nanofiltration membrane to improve antifouling performance |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8466547/ https://www.ncbi.nlm.nih.gov/pubmed/34564521 http://dx.doi.org/10.3390/membranes11090705 |
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