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Highly permeable organic solvent nanofiltration membrane prepared via cosolvent‐assisted interfacial polymerization.

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Title: Highly permeable organic solvent nanofiltration membrane prepared via cosolvent‐assisted interfacial polymerization.
Authors: Li, Chong1 (AUTHOR), Shen, Rouwen1 (AUTHOR), He, Tengyu1 (AUTHOR), Zhu, Aimei1 (AUTHOR) amzhu@xmu.edu.cn, Liu, Qinglin1 (AUTHOR), Zhang, Qiugen1 (AUTHOR) qgzhang@xmu.edu.cn
Source: AIChE Journal. Mar2026, Vol. 72 Issue 3, p1-12. 12p.
Subjects: Polyamide membranes, Dimethylformamide, Nanofiltration, Composite membranes (Chemistry), Polymerization, Membrane filter fouling, Membrane permeability (Technology)
Abstract: High‐performance polyamide (PA) composite membranes prepared via interfacial polymerization (IP), the use of cosolvents to enhance the solubility of aromatic amine monomers has gained significant attention. However, previous attempts often required high cosolvent concentrations (>50 wt%), which compromised membrane performance. This study demonstrates that a low concentration of N,N‐dimethylformamide (DMF) as the cosolvent in the water phase is sufficient to promote the formation of a uniform and thin PA layer (20.3 ± 2.07 nm) on the porous substrate. The effects of DMF concentration were investigated. The introduction of DMF significantly enhances interfacial stability and alters diffusion dynamics. The membrane formed with 30% DMF exhibits a high methanol permeance of 22.4 L m−2 h−1 (LMH) bar−1 along with 99.2% rejection of rose bengal (RB). The smooth surface morphology significantly improves the membrane anti‐fouling properties. The study demonstrates a facile cosolvent‐assisted IP process to fabricate the high‐performance thin film composite (TFC) membrane, which has wide applications in organic solvent nanofiltration. [ABSTRACT FROM AUTHOR]
Copyright of AIChE Journal is the property of Wiley-Blackwell 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
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DbLabel: Engineering Source
An: 191457336
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PubTypeId: academicJournal
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  Label: Title
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  Data: Highly permeable organic solvent nanofiltration membrane prepared via cosolvent‐assisted interfacial polymerization.
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  Data: <searchLink fieldCode="AR" term="%22Li%2C+Chong%22">Li, Chong</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Shen%2C+Rouwen%22">Shen, Rouwen</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22He%2C+Tengyu%22">He, Tengyu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhu%2C+Aimei%22">Zhu, Aimei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> amzhu@xmu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Liu%2C+Qinglin%22">Liu, Qinglin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Qiugen%22">Zhang, Qiugen</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> qgzhang@xmu.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22AIChE+Journal%22">AIChE Journal</searchLink>. Mar2026, Vol. 72 Issue 3, p1-12. 12p.
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  Data: <searchLink fieldCode="DE" term="%22Polyamide+membranes%22">Polyamide membranes</searchLink><br /><searchLink fieldCode="DE" term="%22Dimethylformamide%22">Dimethylformamide</searchLink><br /><searchLink fieldCode="DE" term="%22Nanofiltration%22">Nanofiltration</searchLink><br /><searchLink fieldCode="DE" term="%22Composite+membranes+%28Chemistry%29%22">Composite membranes (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Polymerization%22">Polymerization</searchLink><br /><searchLink fieldCode="DE" term="%22Membrane+filter+fouling%22">Membrane filter fouling</searchLink><br /><searchLink fieldCode="DE" term="%22Membrane+permeability+%28Technology%29%22">Membrane permeability (Technology)</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: High‐performance polyamide (PA) composite membranes prepared via interfacial polymerization (IP), the use of cosolvents to enhance the solubility of aromatic amine monomers has gained significant attention. However, previous attempts often required high cosolvent concentrations (>50 wt%), which compromised membrane performance. This study demonstrates that a low concentration of N,N‐dimethylformamide (DMF) as the cosolvent in the water phase is sufficient to promote the formation of a uniform and thin PA layer (20.3 ± 2.07 nm) on the porous substrate. The effects of DMF concentration were investigated. The introduction of DMF significantly enhances interfacial stability and alters diffusion dynamics. The membrane formed with 30% DMF exhibits a high methanol permeance of 22.4 L m−2 h−1 (LMH) bar−1 along with 99.2% rejection of rose bengal (RB). The smooth surface morphology significantly improves the membrane anti‐fouling properties. The study demonstrates a facile cosolvent‐assisted IP process to fabricate the high‐performance thin film composite (TFC) membrane, which has wide applications in organic solvent nanofiltration. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of AIChE Journal is the property of Wiley-Blackwell 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:
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      – Type: doi
        Value: 10.1002/aic.70162
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      – Code: eng
        Text: English
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        PageCount: 12
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      – SubjectFull: Polyamide membranes
        Type: general
      – SubjectFull: Dimethylformamide
        Type: general
      – SubjectFull: Nanofiltration
        Type: general
      – SubjectFull: Composite membranes (Chemistry)
        Type: general
      – SubjectFull: Polymerization
        Type: general
      – SubjectFull: Membrane filter fouling
        Type: general
      – SubjectFull: Membrane permeability (Technology)
        Type: general
    Titles:
      – TitleFull: Highly permeable organic solvent nanofiltration membrane prepared via cosolvent‐assisted interfacial polymerization.
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            NameFull: Li, Chong
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            NameFull: Shen, Rouwen
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            NameFull: He, Tengyu
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            NameFull: Zhu, Aimei
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            NameFull: Liu, Qinglin
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            – D: 01
              M: 03
              Text: Mar2026
              Type: published
              Y: 2026
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              Value: 72
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