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A critical review on the oxidation-property-performance of polyamide membranes for water treatment.

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Title: A critical review on the oxidation-property-performance of polyamide membranes for water treatment.
Authors: Siddique, Muhammad Saboor1 (AUTHOR), Su, Wenhao1 (AUTHOR), Shao, Senlin2 (AUTHOR), Wang, Zhongying3 (AUTHOR), Jiang, Yi4 (AUTHOR), Xie, Ming5 (AUTHOR), Guo, Hao1,6,7 (AUTHOR) guohao@sz.tsinghua.edu.cn
Source: Critical Reviews in Environmental Science & Technology. 2026, Vol. 56 Issue 8, p429-453. 25p.
Subjects: Polyamide membranes, Nanofiltration, Organic compounds removal (Water purification), Reverse osmosis, Chlorination, Water purification
Abstract: Despite the wide deployment of polyamide nanofiltration (NF) and reverse osmosis (RO) membranes in water treatment, their poor resistance to oxidants (e.g., hypochlorite) often results in compromised separation performance. In this review, we extracted physicochemical properties and separation performance of polyamide NF/RO membranes before and after oxidation from the literature for systematic data analysis. The results showed that the fully-aromatic membranes are more prone to oxidation compared to the semi-aromatic membranes. Severe oxidation could significantly damage polyamide network, leading to deteriorated polyamide nanofeatures, varied hydrophilicity depending on pH (e.g., more hydrophilic after alkaline oxidation), increased negative charge, and enhanced O/N ratio. Moreover, the fully-aromatic polyamide membranes often demonstrate enhanced water permeance after neutral and alkaline oxidation due to the degradation of polyamide. Meanwhile, the membranes showed deceased rejection and selectivity of salts after severe oxidation. In addition, an initial evaluation of micropollutant rejection was performed based on the currently limited available literature data, but a comprehensive and systematic investigation into the oxidation impact on water-micropollutant selectivity is still lacking and represents a critical area for future research. We further analyzed the chlorination-properties-performance relationship to highlight the importance of oxidation-induced O/N ratio change on membrane separation performance. In addition, the Janus impacts of oxidation (e.g., damaging membranes with compromised performance and polishing membranes for enhanced performance) were highlighted. Moreover, we outlooked the development of novel anti-oxidation membranes and oxidation polished membranes for specific applications in water treatment. [ABSTRACT FROM AUTHOR]
Copyright of Critical Reviews in Environmental Science & Technology is the property of Taylor & Francis Ltd 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: 192476881
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PubType: Academic Journal
PubTypeId: academicJournal
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  Data: A critical review on the oxidation-property-performance of polyamide membranes for water treatment.
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  Data: <searchLink fieldCode="AR" term="%22Siddique%2C+Muhammad+Saboor%22">Siddique, Muhammad Saboor</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Su%2C+Wenhao%22">Su, Wenhao</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Shao%2C+Senlin%22">Shao, Senlin</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Zhongying%22">Wang, Zhongying</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jiang%2C+Yi%22">Jiang, Yi</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Xie%2C+Ming%22">Xie, Ming</searchLink><relatesTo>5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Guo%2C+Hao%22">Guo, Hao</searchLink><relatesTo>1,6,7</relatesTo> (AUTHOR)<i> guohao@sz.tsinghua.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Critical+Reviews+in+Environmental+Science+%26+Technology%22">Critical Reviews in Environmental Science & Technology</searchLink>. 2026, Vol. 56 Issue 8, p429-453. 25p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Polyamide+membranes%22">Polyamide membranes</searchLink><br /><searchLink fieldCode="DE" term="%22Nanofiltration%22">Nanofiltration</searchLink><br /><searchLink fieldCode="DE" term="%22Organic+compounds+removal+%28Water+purification%29%22">Organic compounds removal (Water purification)</searchLink><br /><searchLink fieldCode="DE" term="%22Reverse+osmosis%22">Reverse osmosis</searchLink><br /><searchLink fieldCode="DE" term="%22Chlorination%22">Chlorination</searchLink><br /><searchLink fieldCode="DE" term="%22Water+purification%22">Water purification</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Despite the wide deployment of polyamide nanofiltration (NF) and reverse osmosis (RO) membranes in water treatment, their poor resistance to oxidants (e.g., hypochlorite) often results in compromised separation performance. In this review, we extracted physicochemical properties and separation performance of polyamide NF/RO membranes before and after oxidation from the literature for systematic data analysis. The results showed that the fully-aromatic membranes are more prone to oxidation compared to the semi-aromatic membranes. Severe oxidation could significantly damage polyamide network, leading to deteriorated polyamide nanofeatures, varied hydrophilicity depending on pH (e.g., more hydrophilic after alkaline oxidation), increased negative charge, and enhanced O/N ratio. Moreover, the fully-aromatic polyamide membranes often demonstrate enhanced water permeance after neutral and alkaline oxidation due to the degradation of polyamide. Meanwhile, the membranes showed deceased rejection and selectivity of salts after severe oxidation. In addition, an initial evaluation of micropollutant rejection was performed based on the currently limited available literature data, but a comprehensive and systematic investigation into the oxidation impact on water-micropollutant selectivity is still lacking and represents a critical area for future research. We further analyzed the chlorination-properties-performance relationship to highlight the importance of oxidation-induced O/N ratio change on membrane separation performance. In addition, the Janus impacts of oxidation (e.g., damaging membranes with compromised performance and polishing membranes for enhanced performance) were highlighted. Moreover, we outlooked the development of novel anti-oxidation membranes and oxidation polished membranes for specific applications in water treatment. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Critical Reviews in Environmental Science & Technology is the property of Taylor & Francis Ltd 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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        Value: 10.1080/10643389.2026.2632634
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        Text: English
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        PageCount: 25
        StartPage: 429
    Subjects:
      – SubjectFull: Polyamide membranes
        Type: general
      – SubjectFull: Nanofiltration
        Type: general
      – SubjectFull: Organic compounds removal (Water purification)
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      – SubjectFull: Reverse osmosis
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      – SubjectFull: Chlorination
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      – SubjectFull: Water purification
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      – TitleFull: A critical review on the oxidation-property-performance of polyamide membranes for water treatment.
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            NameFull: Siddique, Muhammad Saboor
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            NameFull: Su, Wenhao
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              Text: 2026
              Type: published
              Y: 2026
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