Maintaining hexagonal structures through interfacial positioning of crosslinkers for nanofiltration
The hexagonal structure can be effectively retained in the reactive HLLC system when an optimal PEGDA content is introduced and distributed well in the water pathways between the hexagonally packed cylinders. The system will otherwise transit into a lamellar structure if no PEGDA introduced even with reactive head groups. Crosslinkers with longer molecular chains are more effective in connecting the neighbouring cylinders and stabilizing the hexagonal structure during polymerization. The well-retained and aligned HLLC system results in a defect-free active layer with highly continuous water pathways, which improves both permeability and ion rejection compared to the system without PEGDA. Understanding the interfacial positioning of crosslinkers allows for precise control of the hexagonal structure during polymerization via molecular design for fabricating effective nanofiltration membranes.
Authors
- Liliana de Campo (ORCID: https://orcid.org/0000-0003-4799-2935)
- Jizhen Zhang (ORCID: https://orcid.org/0000-0002-9584-9554)
- Peter A. Lynch (ORCID: https://orcid.org/0000-0003-3760-4062)
- Robert Knott (ORCID: https://orcid.org/0000-0001-9670-0674)
- Luke A. O’Dell (ORCID: https://orcid.org/0000-0002-7760-5417)
- Lingxue Kong (ORCID: https://orcid.org/0000-0001-6219-3897)
- Senlin Gu (ORCID: https://orcid.org/0000-0003-4194-1862)
- Weimin Gao (ORCID: https://orcid.org/0000-0002-7390-169X)
- Jing Yang (ORCID: https://orcid.org/0000-0003-2862-4993)
- Jiaqi Zhang (ORCID: https://orcid.org/0000-0002-7999-8330)
- Liangliang Zhang
- Dong Wang (ORCID: https://orcid.org/0000-0002-8139-8502)
- Guang Wang (ORCID: https://orcid.org/0000-0001-8029-689X)
- Yongjin Li (ORCID: https://orcid.org/0000-0001-6666-1336)
Institutions
- Commonwealth Scientific and Industrial Research Organisation (AU)
- Australian Nuclear Science and Technology Organisation (AU)
- North China University of Science and Technology (CN)
- Deakin University (AU)
- Hangzhou Normal University (CN)
- China Spallation Neutron Source (CN)
- Wuhan Textile University (CN)
- CSIRO Manufacturing (AU)
Publication Details
- Journal
- Journal of Colloid and Interface Science
- Published
- 2024-12-25
- DOI
- https://doi.org/10.1016/j.jcis.2024.12.169
- Citations
- 1
- Primary Topic
- Membrane Separation Technologies
- Type
- article
- Field-Weighted Citation Impact
- 0.20