Journal
MEMBRANES
Volume 7, Issue 3, Pages -Publisher
MDPI
DOI: 10.3390/membranes7030037
Keywords
nanofiltration (NF); hexagonal lyotropic liquid crystals (hexagonal LLCs); structure retention; reorientation; membranes
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Funding
- Deakin University Postgraduate Research Scholarship (DUPRS)
- Australian Institute of Nuclear Science and Engineering (AINSE)
- Chinese National Special Grant for International Collaboration on Science and Technology [2014DFA80440]
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Water scarcity has been recognized as one of the major threats to human activity, and, therefore, water purification technologies are increasingly drawing attention worldwide. Nanofiltration (NF) membrane technology has been proven to be an efficient and cost-effective way in terms of the size and continuity of the nanostructure. Using a template based on hexagonal lyotropic liquid crystals (LLCs) and partitioning monomer units within this structure for subsequent photo-polymerisation presents a unique path for the fabrication of NF membranes, potentially producing pores of uniform size, ranging from 1 to 5 nm, and large surface areas. The subsequent orientation of this pore network in a direction normal to a flat polymer film that provides ideal transport properties associated with continuous pores running through the membrane has been achieved by the orientation of hexagonal LLCs through various strategies. This review presents the current progresses on the strategies for structure retention from a hexagonal LLCs template and the up-to-date techniques used for the reorientation of mesochanels for continuity through the whole membrane.
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