%0 Generic
%A de Wit, Patrick
%D 2014
%T Highly permeable and mechanically robust silicon carbide hollow fiber membranes: Supplementary Video
%U https://data.4tu.nl/articles/dataset/Highly_permeable_and_mechanically_robust_silicon_carbide_hollow_fiber_membranes_Supplementary_Video/12715793/1
%R 10.4121/uuid:cf631d8c-ee8a-401b-bb84-5699f4ecc15f
%K Inorganic porous hollow fiber
%K Oil-water separation
%K Silicon carbide
%K Water treatment
%X 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.
%I University of Twente