Biomimetic material functionalized mixed matrix membranes for enhanced carbon dioxide capture

Yiming Zhang; Huixian Wang; Siyu Zhou; Jing Wang; Xuezhong He; Jindun Liu; Yatao Zhang

doi:10.1039/c8ta03198c

Biomimetic material functionalized mixed matrix membranes for enhanced carbon dioxide capture

Yiming Zhang, Huixian Wang, Siyu Zhou, Jing Wang, Xuezhong He, Jindun Liu, Yatao Zhang^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

Carbonic anhydrase (CA) has been widely used in gas separation membranes because of its high affinity for CO₂ molecules. In this work, a novel biomimetic material (Co-2,6-bis(2-benzimidazolyl)pyridine, CoBBP) which has a similar molecular structure to the CA enzyme but with higher stability and a lower price was successfully synthesized. The excellent thermal stability, dispersibility and high CO₂ selectivity make CoBBP a promising alternative to CA. Then, a series of Pebax-CoBBP mixed matrix membranes were constructed to explore their capability for CO₂/N₂ separation. Compared to the pristine Pebax-1657, the Pebax-CoBBP mixed matrix membrane with the optimized 1.33 wt% CoBBP loading showed an improved CO₂ permeability of 675.5 barrer and a CO₂/N₂ selectivity of 62, surpassing the Robeson upper bound (2008). Furthermore, the hydrogen bonds between CoBBP and polyamide chains improved the chain stiffness of the linear glassy polymer, ensuring good operational mechanical stability. In short, this work could provide a promising method to exploit alternatives to the CA enzyme and to fabricate biomimetic membranes.

Original language	English
Pages (from-to)	15585-15592
Number of pages	8
Journal	Journal of Materials Chemistry A
Volume	6
Issue number	32
DOIs	https://doi.org/10.1039/c8ta03198c
State	Published - 2018
Externally published	Yes

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title = "Biomimetic material functionalized mixed matrix membranes for enhanced carbon dioxide capture",

abstract = "Carbonic anhydrase (CA) has been widely used in gas separation membranes because of its high affinity for CO2 molecules. In this work, a novel biomimetic material (Co-2,6-bis(2-benzimidazolyl)pyridine, CoBBP) which has a similar molecular structure to the CA enzyme but with higher stability and a lower price was successfully synthesized. The excellent thermal stability, dispersibility and high CO2 selectivity make CoBBP a promising alternative to CA. Then, a series of Pebax-CoBBP mixed matrix membranes were constructed to explore their capability for CO2/N2 separation. Compared to the pristine Pebax-1657, the Pebax-CoBBP mixed matrix membrane with the optimized 1.33 wt% CoBBP loading showed an improved CO2 permeability of 675.5 barrer and a CO2/N2 selectivity of 62, surpassing the Robeson upper bound (2008). Furthermore, the hydrogen bonds between CoBBP and polyamide chains improved the chain stiffness of the linear glassy polymer, ensuring good operational mechanical stability. In short, this work could provide a promising method to exploit alternatives to the CA enzyme and to fabricate biomimetic membranes.",

author = "Yiming Zhang and Huixian Wang and Siyu Zhou and Jing Wang and Xuezhong He and Jindun Liu and Yatao Zhang",

note = "Publisher Copyright: {\textcopyright} 2018 The Royal Society of Chemistry.",

year = "2018",

doi = "10.1039/c8ta03198c",

language = "英语",

volume = "6",

pages = "15585--15592",

journal = "Journal of Materials Chemistry A",

issn = "2050-7488",

publisher = "Royal Society of Chemistry",

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TY - JOUR

T1 - Biomimetic material functionalized mixed matrix membranes for enhanced carbon dioxide capture

AU - Zhang, Yiming

AU - Wang, Huixian

AU - Zhou, Siyu

AU - Wang, Jing

AU - He, Xuezhong

AU - Liu, Jindun

AU - Zhang, Yatao

PY - 2018

Y1 - 2018

N2 - Carbonic anhydrase (CA) has been widely used in gas separation membranes because of its high affinity for CO2 molecules. In this work, a novel biomimetic material (Co-2,6-bis(2-benzimidazolyl)pyridine, CoBBP) which has a similar molecular structure to the CA enzyme but with higher stability and a lower price was successfully synthesized. The excellent thermal stability, dispersibility and high CO2 selectivity make CoBBP a promising alternative to CA. Then, a series of Pebax-CoBBP mixed matrix membranes were constructed to explore their capability for CO2/N2 separation. Compared to the pristine Pebax-1657, the Pebax-CoBBP mixed matrix membrane with the optimized 1.33 wt% CoBBP loading showed an improved CO2 permeability of 675.5 barrer and a CO2/N2 selectivity of 62, surpassing the Robeson upper bound (2008). Furthermore, the hydrogen bonds between CoBBP and polyamide chains improved the chain stiffness of the linear glassy polymer, ensuring good operational mechanical stability. In short, this work could provide a promising method to exploit alternatives to the CA enzyme and to fabricate biomimetic membranes.

AB - Carbonic anhydrase (CA) has been widely used in gas separation membranes because of its high affinity for CO2 molecules. In this work, a novel biomimetic material (Co-2,6-bis(2-benzimidazolyl)pyridine, CoBBP) which has a similar molecular structure to the CA enzyme but with higher stability and a lower price was successfully synthesized. The excellent thermal stability, dispersibility and high CO2 selectivity make CoBBP a promising alternative to CA. Then, a series of Pebax-CoBBP mixed matrix membranes were constructed to explore their capability for CO2/N2 separation. Compared to the pristine Pebax-1657, the Pebax-CoBBP mixed matrix membrane with the optimized 1.33 wt% CoBBP loading showed an improved CO2 permeability of 675.5 barrer and a CO2/N2 selectivity of 62, surpassing the Robeson upper bound (2008). Furthermore, the hydrogen bonds between CoBBP and polyamide chains improved the chain stiffness of the linear glassy polymer, ensuring good operational mechanical stability. In short, this work could provide a promising method to exploit alternatives to the CA enzyme and to fabricate biomimetic membranes.

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U2 - 10.1039/c8ta03198c

DO - 10.1039/c8ta03198c

M3 - 文章

AN - SCOPUS:85051732777

SN - 2050-7488

VL - 6

SP - 15585

EP - 15592

JO - Journal of Materials Chemistry A

JF - Journal of Materials Chemistry A

IS - 32

ER -

Biomimetic material functionalized mixed matrix membranes for enhanced carbon dioxide capture

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