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dc.contributor.authorFrancis, Verona Nithyaen_US
dc.identifier.citationFrancis, V. N. (2022). Polytetrafluoroethylene (PTFE) hollow fibre membrane fabrication for organic solvent nanofiltration (OSN). Master's thesis, Nanyang Technological University, Singapore.
dc.description.abstractMembrane technology has allowed purification to be done in a cheaper and more energy efficient way. In organic solvent nanofiltration (OSN), material choice is important as the membrane must be able to withstand harsh solvents over a long time. Although polytetrafuoroethylene (PTFE) is known to be an inert material, little research has been done on using it for OSN membranes, due to fabrication challenges. In this study, the author has successfully synthesized PTFE hollow fibre thin film composites for OSN, despite challenges in the surface morphology and substrate hydrophilicity. The resultant membranes showed to have excellent chemical and mechanical stability when tested in harsh aprotic solvents such as dimethylformamide (DMF) and dimethylsulfoxide (DMSO). They showed high DMF permeance of 3.70 lm-2h-1bar-1, and high acid fuchsin dye rejections of >90%. The membranes were also stable at pressures of up to 5 bar, and overtime.en_US
dc.publisherNanyang Technological Universityen_US
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0).en_US
dc.subjectEngineering::Environmental engineeringen_US
dc.titlePolytetrafluoroethylene (PTFE) hollow fibre membrane fabrication for organic solvent nanofiltration (OSN)en_US
dc.typeThesis-Master by Researchen_US
dc.contributor.supervisorWang Rongen_US
dc.contributor.schoolSchool of Civil and Environmental Engineeringen_US
dc.description.degreeMaster of Engineeringen_US
dc.contributor.researchNanyang Environment and Water Research Instituteen_US
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