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AssigneeBoard of Trustees of the University of Arkansas
InventorsJorge Almodovar, Ranil Wickramasinghe, Yu-Hsuan Chiao, David Alfonso Castilla-Casadiego
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A bilayer electrospun membranes for treating hydraulic fracking wastewater via membrane distillation, and more particularly to bilayer electrospun membranes having an omniphobic layer to prevent low-surface tension solution wicking and an oleophobic antifouling surface to prevent foulant depositing on the membrane. Nanoparticles are decorated on the omniphobic surface through electrochemical interaction, which is coated with a fluorine monomer on the nanoparticles. A zwitterionic co-polymer is grafted using self-assembly between hydroxy groups on the antifouling surface generated by alkaline treatment and anchor segment epoxy groups on zwitterionic co-polymer.
A bilayer electrospun membrane, comprising:
An electrospun zwitterionic membrane, the membrane comprising:
A bilayer membrane distillation membrane for separation of hydraulic fracturing-produced water via membrane distillation, the membrane comprising:
A process for preparing a polyvinylidene difluoride (PVDF) membrane, the process comprising the steps of:
Dependencies are inferred from the claim text.