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Inner-selective coordination nanofiltration hollow fiber membranes from assist-pressure modified substrate.

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Title: Inner-selective coordination nanofiltration hollow fiber membranes from assist-pressure modified substrate.
Authors: Wang, Qian1 (AUTHOR), Wei, Xin2 (AUTHOR), Wang, Guang-Rui1 (AUTHOR), Lu, Tian-Dan1 (AUTHOR), Shi, Qixun1,2 (AUTHOR) ias_qxshi@njtech.edu.cn, Sun, Shi-Peng1 (AUTHOR) ssp@njtech.edu.cn
Source: Journal of Membrane Science. May2021, Vol. 626, pN.PAG-N.PAG. 1p.
Subjects: Hollow fibers, Nanofiltration, Polyimides, Phytic acid, Water purification, Reverse osmosis process (Sewage purification), Groundwater purification
Abstract: This study aims to develop an inner selective coordination nanofiltration hollow fiber (CNHF) membrane for the efficient removal of antibiotics from groundwater. In the first step, a modified substrate with the controlled modification degree is achieved by pressure-assisted alkali modification of polyimide hollow fiber substrate to provide the active points for the construction of the dense active layer. Then, the high-performance active layer is dynamically built on the modified substrate by the coordination between Fe3+ and phytic acid. Compared to static synthesis, the pure water permeability (PWP) of the membrane is improved from 4.1 to 8.5 Lm−2h−1bar−1 and Na 2 SO 4 rejection enhanced from 68.3% to 97.0% by the dynamic synthesis with a cross-flow system. The newly developed membranes exhibit high rejection to several pharmaceuticals (>99%). This work may provide insightful guidelines for improving the fabrication procedures and scaling up the inner-selective CNHF membrane modules for water purification and other applications. [Display omitted] • Inner-selective NF hollow fiber membrane was achieved by PA/Fe coordination. • The substrate modified with assist-pressure allows optimum performance. • Double the water permeability by dynamic synthesis with cross-flow. • CNHF membrane shows high removal performance to pharmaceutics (>99%). [ABSTRACT FROM AUTHOR]
Copyright of Journal of Membrane Science 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
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Header DbId: egs
DbLabel: Engineering Source
An: 149220165
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Inner-selective coordination nanofiltration hollow fiber membranes from assist-pressure modified substrate.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Wang%2C+Qian%22">Wang, Qian</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wei%2C+Xin%22">Wei, Xin</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Guang-Rui%22">Wang, Guang-Rui</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lu%2C+Tian-Dan%22">Lu, Tian-Dan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Shi%2C+Qixun%22">Shi, Qixun</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> ias_qxshi@njtech.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Sun%2C+Shi-Peng%22">Sun, Shi-Peng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> ssp@njtech.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Membrane+Science%22">Journal of Membrane Science</searchLink>. May2021, Vol. 626, pN.PAG-N.PAG. 1p.
– Name: Subject
  Label: Subjects
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  Data: <searchLink fieldCode="DE" term="%22Hollow+fibers%22">Hollow fibers</searchLink><br /><searchLink fieldCode="DE" term="%22Nanofiltration%22">Nanofiltration</searchLink><br /><searchLink fieldCode="DE" term="%22Polyimides%22">Polyimides</searchLink><br /><searchLink fieldCode="DE" term="%22Phytic+acid%22">Phytic acid</searchLink><br /><searchLink fieldCode="DE" term="%22Water+purification%22">Water purification</searchLink><br /><searchLink fieldCode="DE" term="%22Reverse+osmosis+process+%28Sewage+purification%29%22">Reverse osmosis process (Sewage purification)</searchLink><br /><searchLink fieldCode="DE" term="%22Groundwater+purification%22">Groundwater purification</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This study aims to develop an inner selective coordination nanofiltration hollow fiber (CNHF) membrane for the efficient removal of antibiotics from groundwater. In the first step, a modified substrate with the controlled modification degree is achieved by pressure-assisted alkali modification of polyimide hollow fiber substrate to provide the active points for the construction of the dense active layer. Then, the high-performance active layer is dynamically built on the modified substrate by the coordination between Fe3+ and phytic acid. Compared to static synthesis, the pure water permeability (PWP) of the membrane is improved from 4.1 to 8.5 Lm−2h−1bar−1 and Na 2 SO 4 rejection enhanced from 68.3% to 97.0% by the dynamic synthesis with a cross-flow system. The newly developed membranes exhibit high rejection to several pharmaceuticals (>99%). This work may provide insightful guidelines for improving the fabrication procedures and scaling up the inner-selective CNHF membrane modules for water purification and other applications. [Display omitted] • Inner-selective NF hollow fiber membrane was achieved by PA/Fe coordination. • The substrate modified with assist-pressure allows optimum performance. • Double the water permeability by dynamic synthesis with cross-flow. • CNHF membrane shows high removal performance to pharmaceutics (>99%). [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Membrane Science 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.memsci.2021.119186
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Hollow fibers
        Type: general
      – SubjectFull: Nanofiltration
        Type: general
      – SubjectFull: Polyimides
        Type: general
      – SubjectFull: Phytic acid
        Type: general
      – SubjectFull: Water purification
        Type: general
      – SubjectFull: Reverse osmosis process (Sewage purification)
        Type: general
      – SubjectFull: Groundwater purification
        Type: general
    Titles:
      – TitleFull: Inner-selective coordination nanofiltration hollow fiber membranes from assist-pressure modified substrate.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Wang, Qian
      – PersonEntity:
          Name:
            NameFull: Wei, Xin
      – PersonEntity:
          Name:
            NameFull: Wang, Guang-Rui
      – PersonEntity:
          Name:
            NameFull: Lu, Tian-Dan
      – PersonEntity:
          Name:
            NameFull: Shi, Qixun
      – PersonEntity:
          Name:
            NameFull: Sun, Shi-Peng
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          Dates:
            – D: 15
              M: 05
              Text: May2021
              Type: published
              Y: 2021
          Identifiers:
            – Type: issn-print
              Value: 03767388
          Numbering:
            – Type: volume
              Value: 626
          Titles:
            – TitleFull: Journal of Membrane Science
              Type: main
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