期刊
CERAMICS INTERNATIONAL
卷 49, 期 7, 页码 11725-11729出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2023.01.020
关键词
Oil-water separation; Ceramic fiber braids; Superhydrophobic; Mullite whiskers
Ceramic fiber braids with excellent chemical and thermal stability were used for oil-water separation, showing promising performance in harsh water environments.
Oil-water separation by gravity has been introduced as an effective water purification technique. However, traditional materials such as metal mesh and polymer braid are challenging to utilize in harsh water environ-ments. In this work, ceramic fiber braids with excellent chemical and thermal stability were fabricated and used for oil-water separation. Needle-like mullite whiskers with length of similar to 100 nm was in-situ grown on the surface of the fibers using gas phase reaction which could significantly increase the surface roughness of ceramic fibers. The ceramic fiber was successfully converted to hydrophobic structure with water contact angle of 159.4 degrees +/- 1.9 degrees and sliding angle of 8.8 degrees +/- 2.0 degrees. The excellent structural stability and oil water separation performance confirm the wide range applications of the hydrophobic ceramic fiber braids in harsh water environments.
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