6533b838fe1ef96bd12a3e2d
RESEARCH PRODUCT
An ultrathin suspended hydrophobic porous membrane for high-efficiency water desalination
Enrico DrioliEnrico DrioliEnrico DrioliMaria Luisa PerrottaGirolamo CasellaGiacomo SaielliFrancesca MacedonioAnnarosa GugliuzzaLidietta Giornosubject
Thermal efficiencyMaterials scienceMembrane distillation; Nanostructured membrane; PES honeycomb texture; Porous HYFLON AD nanofilm; Thermal efficiency; Water desalinationMembrane distillation02 engineering and technologySuper-hydrophobic interface010402 general chemistryMembrane distillation01 natural sciencesSettore CHIM/04 - Chimica IndustrialeWater desalinationhoneycombPorous membranePES honeycomb textureGeneral Materials SciencePorosityWater desalinationElectrical conductorKeywordChromatographyNanostructured membranePorous HYFLON AD nanofilmNanofilm021001 nanoscience & nanotechnology0104 chemical sciencesMembraneChemical engineeringnanostructured membranesHYFLON AD0210 nano-technologyWater vaporThermal efficiencydescription
Abstract An ultrathin highly fluorinated porous membrane was designed for a large production of desalted water at very low energy consumption. Imprinting water droplets were used through a low thermally conductive tetra-fluoroethylene (TFE)/2,2,4-trifluoro-5-tri-fluorometoxy-1,3-dioxol (TIT) (HYFLON AD 60) solution and the generated porous nanofilm was suspended onto a polyethersulfone (PES) honeycomb texture. The very tiny fluorinated thickness together with a large number of small-shaped pores provided the membrane for enhanced anti-wetting surface properties, extremely reduced resistance to water vapor transfer and outstanding thermal efficiency. Fine materials structure-transport relations let the membrane reach unusual productivity-efficiency trade-off during water desalination via thermally driven membrane distillation. The exceptional performance affords this novel nanostructured membrane to catalyze the accomplishment of new-concept water desalination processes.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-12-01 |