Composite Membranes with Nanofibrous Cross-Hatched Supports for Reverse Osmosis Desalination
Seungju Kim, Daniel E Heath, Sandra E Kentish
ACS APPLIED MATERIALS & INTERFACES | AMER CHEMICAL SOC | Published : 2020
A novel membrane structure composed of cross-hatched electrospun nanofibers is developed. We illustrate that this novel structure allows for much higher water permeability when used as a support for reverse osmosis thin-film composite membranes. Reinforcement and lamination of the aligned nanofibers generates mechanically robust structures that retain very high porosity and low tortuosity when applied to high pressure desalination operations. The cross-hatched nanofiber layers support the polyamide active layer firmly and reduce resistance to water flow due to the high porosity, low tortuosity, high mechanical strength, and minimal thickness of the structures. The nanofiber composite membran..View full abstract
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Awarded by Australian Research Council Discovery Projects Scheme
This research was supported under the Australian Research Council Discovery Projects Scheme (Project number DP190102253). The authors acknowledge the staff of the Materials Characterization and Fabrication Platform (MCFP) at the University of Melbourne, the Advanced Microscopy Facility at Bio21 Institute, and the Victorian Node of the Australian National Fabrication Facility (ANFF) for their technical assistance.