de Wit, Patrick (2014): Highly permeable and mechanically robust silicon carbide hollow fiber membranes: Supplementary Video. Version 1. 4TU.ResearchData. dataset. https://doi.org/10.4121/uuid:cf631d8c-ee8a-401b-bb84-5699f4ecc15f

Dataset

• Civil Engineering
• Materials Engineering

Inorganic porous hollow fiber, Oil-water separation, Silicon carbide, Water treatment

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by Patrick de Wit

Silicon carbide (SiC) membranes have shown large potential for applications in water treatment. Being able to make these membranes in a hollow fiber geometry allows for higher surface-to-volume ratios. In this study, we present a thermal treatment procedure that is tuned to produce porous silicon carbide hollow fiber membranes with sufficient mechanical strength. Thermal treatments up to 1500 °C in either nitrogen or argon resulted in relatively strong fibers, that were still contaminated with residual carbon from the polymer binder. After treatment at a higher temperature of 1790 °C, the mechanical strength had decreased as a result of carbon removal, but after treatments at even higher temperature of 2075 °C the SiC-particles sinter together, resulting in fibers with mechanical strengths of 30–40 MPa and exceptionally high water permeabilities of 50,000 L m−2 h−1 bar−1. In this supplementary video we demonstrate the mechanical robustness and extreme clean water fluxes in a visual manner.

• 2014-12-15 first online, published, posted

University of Twente

media types: video/mp4

• https://doi.org/10.1016/j.memsci.2014.10.045

• Arian Nijmeijer
• Emiel J. Kappert
• Matthias Wessling
• Nieck E. Benes
• Theresa Lohaus