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A Novel Composite Material UiO-66@HNT/Pebax Mixed Matrix Membranes for Enhanced CO(2)/N(2) Separation
Mixing a polymer matrix and nanofiller to prepare a mixed matrix membrane (MMM) is an effective method for enhancing gas separation performance. In this work, a unique UiO-66-decorated halloysite nanotubes composite material (UiO-66@HNT) was successfully synthesized via a solvothermal method and dis...
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/PMC8467370/ https://www.ncbi.nlm.nih.gov/pubmed/34564510 http://dx.doi.org/10.3390/membranes11090693 |
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author | Guo, Fei Li, Bingzhang Ding, Rui Li, Dongsheng Jiang, Xiaobin He, Gaohong Xiao, Wu |
author_facet | Guo, Fei Li, Bingzhang Ding, Rui Li, Dongsheng Jiang, Xiaobin He, Gaohong Xiao, Wu |
author_sort | Guo, Fei |
collection | PubMed |
description | Mixing a polymer matrix and nanofiller to prepare a mixed matrix membrane (MMM) is an effective method for enhancing gas separation performance. In this work, a unique UiO-66-decorated halloysite nanotubes composite material (UiO-66@HNT) was successfully synthesized via a solvothermal method and dispersed into the Pebax-1657 matrix to prepare MMMs for CO(2)/N(2) separation. A remarkable characteristic of this MMM was that the HNT lumen provided the highway for CO(2) diffusion due to the unique affinity of UiO-66 for CO(2). Simultaneously, the close connection of the UiO-66 layer on the external surface of HNTs created relatively continuous pathways for gas permeation. A suite of microscopy, diffraction, and thermal techniques was used to characterize the morphology and structure of UiO-66@HNT and the membranes. As expected, the embedding UiO-66@HNT composite materials significantly improved the separation performances of the membranes. Impressively, the as-obtained membrane acquired a high CO(2) permeability of 119.08 Barrer and CO(2)/N(2) selectivity of 76.26. Additionally, the presence of UiO-66@HNT conferred good long-term stability and excellent interfacial compatibility on the MMMs. The results demonstrated that the composite filler with fast transport pathways designed in this study was an effective strategy to enhance gas separation performance of MMMs, verifying its application potential in the gas purification industry. |
format | Online Article Text |
id | pubmed-8467370 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-84673702021-09-27 A Novel Composite Material UiO-66@HNT/Pebax Mixed Matrix Membranes for Enhanced CO(2)/N(2) Separation Guo, Fei Li, Bingzhang Ding, Rui Li, Dongsheng Jiang, Xiaobin He, Gaohong Xiao, Wu Membranes (Basel) Article Mixing a polymer matrix and nanofiller to prepare a mixed matrix membrane (MMM) is an effective method for enhancing gas separation performance. In this work, a unique UiO-66-decorated halloysite nanotubes composite material (UiO-66@HNT) was successfully synthesized via a solvothermal method and dispersed into the Pebax-1657 matrix to prepare MMMs for CO(2)/N(2) separation. A remarkable characteristic of this MMM was that the HNT lumen provided the highway for CO(2) diffusion due to the unique affinity of UiO-66 for CO(2). Simultaneously, the close connection of the UiO-66 layer on the external surface of HNTs created relatively continuous pathways for gas permeation. A suite of microscopy, diffraction, and thermal techniques was used to characterize the morphology and structure of UiO-66@HNT and the membranes. As expected, the embedding UiO-66@HNT composite materials significantly improved the separation performances of the membranes. Impressively, the as-obtained membrane acquired a high CO(2) permeability of 119.08 Barrer and CO(2)/N(2) selectivity of 76.26. Additionally, the presence of UiO-66@HNT conferred good long-term stability and excellent interfacial compatibility on the MMMs. The results demonstrated that the composite filler with fast transport pathways designed in this study was an effective strategy to enhance gas separation performance of MMMs, verifying its application potential in the gas purification industry. MDPI 2021-09-07 /pmc/articles/PMC8467370/ /pubmed/34564510 http://dx.doi.org/10.3390/membranes11090693 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 Guo, Fei Li, Bingzhang Ding, Rui Li, Dongsheng Jiang, Xiaobin He, Gaohong Xiao, Wu A Novel Composite Material UiO-66@HNT/Pebax Mixed Matrix Membranes for Enhanced CO(2)/N(2) Separation |
title | A Novel Composite Material UiO-66@HNT/Pebax Mixed Matrix Membranes for Enhanced CO(2)/N(2) Separation |
title_full | A Novel Composite Material UiO-66@HNT/Pebax Mixed Matrix Membranes for Enhanced CO(2)/N(2) Separation |
title_fullStr | A Novel Composite Material UiO-66@HNT/Pebax Mixed Matrix Membranes for Enhanced CO(2)/N(2) Separation |
title_full_unstemmed | A Novel Composite Material UiO-66@HNT/Pebax Mixed Matrix Membranes for Enhanced CO(2)/N(2) Separation |
title_short | A Novel Composite Material UiO-66@HNT/Pebax Mixed Matrix Membranes for Enhanced CO(2)/N(2) Separation |
title_sort | novel composite material uio-66@hnt/pebax mixed matrix membranes for enhanced co(2)/n(2) separation |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8467370/ https://www.ncbi.nlm.nih.gov/pubmed/34564510 http://dx.doi.org/10.3390/membranes11090693 |
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