Coating and thermal polymerization of polyethylene oxide-based polymers on hollow fiber membranes for post-combustion CO2 capture.
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| Title: | Coating and thermal polymerization of polyethylene oxide-based polymers on hollow fiber membranes for post-combustion CO2 capture. |
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| Authors: | Zhao, Boxuan1 (AUTHOR), Liang, Canzeng1 (AUTHOR), Wang, Wenxuan2 (AUTHOR), Li, Sheng2 (AUTHOR), Zhang, Sui1 (AUTHOR) chezhangsui@nus.edu.sg |
| Source: | Separation & Purification Technology. Aug2025:Part 1, Vol. 364, pN.PAG-N.PAG. 1p. |
| Subjects: | Carbon sequestration, Separation of gases, Polyethylene oxide, Prepolymers, Molecular weights, Hollow fibers |
| Abstract: | [Display omitted] Hollow fiber membranes exhibit a super high surface-to-volume ratio, making them attractive for gas separation applications. However, research on thin film composite (TFC) hollow fiber membranes for post-combustion carbon capture is limited, owing to the challenge of forming thin and continuous membranes on their curved surface and the compatibility between gutter layer and selective layer. In this work, we compared two preparation methods and different gutter layers to reveal the important factors in obtaining thin, defect-free coating via thermal crosslinking. Compared to no pretreatment, pretreatment of the coating solution at 60 °C increased the viscosity and molecular weight of the pre-polymers, preventing molecules from penetrating into the gutter layer, enabling higher crosslinking degree and enhancing the membrane stability. Furthermore, to enhance the compatibility between gutter layer and thiol-polydimethylsiloxane (PDMS) / polyethylene oxide (PEO) selective layer, amino PDMS and polyethylene glycol (PEG) PDMS were incorporated into pure PDMS in the gutter layer. The optimum membranes showed a CO 2 permeance of 1050 GPU and a CO 2 /N 2 selectivity of 23.5 at 25 °C and 2 barg. These findings demonstrated an approach for the fabrication of hollow fiber membranes via thermal crosslinking for post-combustion carbon capture and other gas separations. [ABSTRACT FROM AUTHOR] |
| Copyright of Separation & Purification Technology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 184122985 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Coating and thermal polymerization of polyethylene oxide-based polymers on hollow fiber membranes for post-combustion CO2 capture. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Zhao%2C+Boxuan%22">Zhao, Boxuan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liang%2C+Canzeng%22">Liang, Canzeng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Wenxuan%22">Wang, Wenxuan</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Sheng%22">Li, Sheng</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Sui%22">Zhang, Sui</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> chezhangsui@nus.edu.sg</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Separation+%26+Purification+Technology%22">Separation & Purification Technology</searchLink>. Aug2025:Part 1, Vol. 364, pN.PAG-N.PAG. 1p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Carbon+sequestration%22">Carbon sequestration</searchLink><br /><searchLink fieldCode="DE" term="%22Separation+of+gases%22">Separation of gases</searchLink><br /><searchLink fieldCode="DE" term="%22Polyethylene+oxide%22">Polyethylene oxide</searchLink><br /><searchLink fieldCode="DE" term="%22Prepolymers%22">Prepolymers</searchLink><br /><searchLink fieldCode="DE" term="%22Molecular+weights%22">Molecular weights</searchLink><br /><searchLink fieldCode="DE" term="%22Hollow+fibers%22">Hollow fibers</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: [Display omitted] Hollow fiber membranes exhibit a super high surface-to-volume ratio, making them attractive for gas separation applications. However, research on thin film composite (TFC) hollow fiber membranes for post-combustion carbon capture is limited, owing to the challenge of forming thin and continuous membranes on their curved surface and the compatibility between gutter layer and selective layer. In this work, we compared two preparation methods and different gutter layers to reveal the important factors in obtaining thin, defect-free coating via thermal crosslinking. Compared to no pretreatment, pretreatment of the coating solution at 60 °C increased the viscosity and molecular weight of the pre-polymers, preventing molecules from penetrating into the gutter layer, enabling higher crosslinking degree and enhancing the membrane stability. Furthermore, to enhance the compatibility between gutter layer and thiol-polydimethylsiloxane (PDMS) / polyethylene oxide (PEO) selective layer, amino PDMS and polyethylene glycol (PEG) PDMS were incorporated into pure PDMS in the gutter layer. The optimum membranes showed a CO 2 permeance of 1050 GPU and a CO 2 /N 2 selectivity of 23.5 at 25 °C and 2 barg. These findings demonstrated an approach for the fabrication of hollow fiber membranes via thermal crosslinking for post-combustion carbon capture and other gas separations. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Separation & Purification Technology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.seppur.2025.132358 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 1 StartPage: N.PAG Subjects: – SubjectFull: Carbon sequestration Type: general – SubjectFull: Separation of gases Type: general – SubjectFull: Polyethylene oxide Type: general – SubjectFull: Prepolymers Type: general – SubjectFull: Molecular weights Type: general – SubjectFull: Hollow fibers Type: general Titles: – TitleFull: Coating and thermal polymerization of polyethylene oxide-based polymers on hollow fiber membranes for post-combustion CO2 capture. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Zhao, Boxuan – PersonEntity: Name: NameFull: Liang, Canzeng – PersonEntity: Name: NameFull: Wang, Wenxuan – PersonEntity: Name: NameFull: Li, Sheng – PersonEntity: Name: NameFull: Zhang, Sui IsPartOfRelationships: – BibEntity: Dates: – D: 25 M: 08 Text: Aug2025:Part 1 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 13835866 Numbering: – Type: volume Value: 364 Titles: – TitleFull: Separation & Purification Technology Type: main |
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