TY - DATA
T1 - Highly permeable and mechanically robust silicon carbide hollow fiber membranes: Supplementary Video
PY - 2014/12/15
AU - Patrick de Wit
UR - https://data.4tu.nl/articles/dataset/Highly_permeable_and_mechanically_robust_silicon_carbide_hollow_fiber_membranes_Supplementary_Video/12715793/1
DO - 10.4121/uuid:cf631d8c-ee8a-401b-bb84-5699f4ecc15f
KW - Inorganic porous hollow fiber
KW - Oil-water separation
KW - Silicon carbide
KW - Water treatment
N2 - 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.
ER -