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Tailoring Amine-Functionalized Ti-MOFs via a Mixed Ligands Strategy for High-Efficiency CO(2) Capture

Amine-functionalized metal-organic frameworks (MOFs) are a promising strategy for the high-efficiency capture and separation of CO(2). In this work, by tuning the ratio of 1,3,5-benzenetricarboxylic acid (H(3)BTC) to 5-aminoisophthalic acid (5-NH(2)-H(2)IPA), we designed and synthesized a series of...

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Autores principales: Wan, Yinji, Miao, Yefan, Qiu, Tianjie, Kong, Dekai, Wu, Yingxiao, Zhang, Qiuning, Shi, Jinming, Zhong, Ruiqin, Zou, Ruqiang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8709442/
https://www.ncbi.nlm.nih.gov/pubmed/34947697
http://dx.doi.org/10.3390/nano11123348
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author Wan, Yinji
Miao, Yefan
Qiu, Tianjie
Kong, Dekai
Wu, Yingxiao
Zhang, Qiuning
Shi, Jinming
Zhong, Ruiqin
Zou, Ruqiang
author_facet Wan, Yinji
Miao, Yefan
Qiu, Tianjie
Kong, Dekai
Wu, Yingxiao
Zhang, Qiuning
Shi, Jinming
Zhong, Ruiqin
Zou, Ruqiang
author_sort Wan, Yinji
collection PubMed
description Amine-functionalized metal-organic frameworks (MOFs) are a promising strategy for the high-efficiency capture and separation of CO(2). In this work, by tuning the ratio of 1,3,5-benzenetricarboxylic acid (H(3)BTC) to 5-aminoisophthalic acid (5-NH(2)-H(2)IPA), we designed and synthesized a series of amine-functionalized highly stable Ti-based MOFs (named MIP-207-NH(2)-n, in which n represents 15%, 25%, 50%, 60%, and 100%). The structural analysis shows that the original framework of MIP-207 in the MIP-207-NH(2)-n (n = 15%, 25%, and 50%) MOFs remains intact when the mole ratio of ligand H(3)BTC to 5-NH(2)-H(2)IPA is less than 1 to 1 in the resulting MOFs. By the introduction of amino groups, MIP-207-NH(2)-25% demonstrates outstanding CO(2) capture performance up to 3.96 and 2.91 mmol g(−1), 20.7% and 43.3% higher than those of unmodified MIP-207 at 0 and 25 °C, respectively. Furthermore, the breakthrough experiment indicates that the dynamic CO(2) adsorption capacity and CO(2)/N(2) separation factors of MIP-207-NH(2)-25% are increased by about 25% and 15%, respectively. This work provides an additional strategy to construct amine-functionalized MOFs with the maintenance of the original MOF structure and high performance of CO(2) capture and separation.
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spelling pubmed-87094422021-12-25 Tailoring Amine-Functionalized Ti-MOFs via a Mixed Ligands Strategy for High-Efficiency CO(2) Capture Wan, Yinji Miao, Yefan Qiu, Tianjie Kong, Dekai Wu, Yingxiao Zhang, Qiuning Shi, Jinming Zhong, Ruiqin Zou, Ruqiang Nanomaterials (Basel) Article Amine-functionalized metal-organic frameworks (MOFs) are a promising strategy for the high-efficiency capture and separation of CO(2). In this work, by tuning the ratio of 1,3,5-benzenetricarboxylic acid (H(3)BTC) to 5-aminoisophthalic acid (5-NH(2)-H(2)IPA), we designed and synthesized a series of amine-functionalized highly stable Ti-based MOFs (named MIP-207-NH(2)-n, in which n represents 15%, 25%, 50%, 60%, and 100%). The structural analysis shows that the original framework of MIP-207 in the MIP-207-NH(2)-n (n = 15%, 25%, and 50%) MOFs remains intact when the mole ratio of ligand H(3)BTC to 5-NH(2)-H(2)IPA is less than 1 to 1 in the resulting MOFs. By the introduction of amino groups, MIP-207-NH(2)-25% demonstrates outstanding CO(2) capture performance up to 3.96 and 2.91 mmol g(−1), 20.7% and 43.3% higher than those of unmodified MIP-207 at 0 and 25 °C, respectively. Furthermore, the breakthrough experiment indicates that the dynamic CO(2) adsorption capacity and CO(2)/N(2) separation factors of MIP-207-NH(2)-25% are increased by about 25% and 15%, respectively. This work provides an additional strategy to construct amine-functionalized MOFs with the maintenance of the original MOF structure and high performance of CO(2) capture and separation. MDPI 2021-12-10 /pmc/articles/PMC8709442/ /pubmed/34947697 http://dx.doi.org/10.3390/nano11123348 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
Wan, Yinji
Miao, Yefan
Qiu, Tianjie
Kong, Dekai
Wu, Yingxiao
Zhang, Qiuning
Shi, Jinming
Zhong, Ruiqin
Zou, Ruqiang
Tailoring Amine-Functionalized Ti-MOFs via a Mixed Ligands Strategy for High-Efficiency CO(2) Capture
title Tailoring Amine-Functionalized Ti-MOFs via a Mixed Ligands Strategy for High-Efficiency CO(2) Capture
title_full Tailoring Amine-Functionalized Ti-MOFs via a Mixed Ligands Strategy for High-Efficiency CO(2) Capture
title_fullStr Tailoring Amine-Functionalized Ti-MOFs via a Mixed Ligands Strategy for High-Efficiency CO(2) Capture
title_full_unstemmed Tailoring Amine-Functionalized Ti-MOFs via a Mixed Ligands Strategy for High-Efficiency CO(2) Capture
title_short Tailoring Amine-Functionalized Ti-MOFs via a Mixed Ligands Strategy for High-Efficiency CO(2) Capture
title_sort tailoring amine-functionalized ti-mofs via a mixed ligands strategy for high-efficiency co(2) capture
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8709442/
https://www.ncbi.nlm.nih.gov/pubmed/34947697
http://dx.doi.org/10.3390/nano11123348
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