화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.36, No.8, 1313-1320, August, 2019
DOI10.1007/s11814-019-0308-9  Export Citation
Superhydrophobic and superoleophilic nickel foam for oil/water separation
Kyoung Yong Eum, Isheunesu Phiri, Jin Woo Kim1, Won San Choi, Jang Myoun Ko†, and Heesoo Jung2, †
  • Department of Applied Chemistry & Biotechnology, Hanbat National University, 125 Dongseo-daero, Yuseong-gu, Daejeon 34152, Korea
  • 1HanKook Tech, 199, Techno 2-ro, Yuseong-gu, Daejeon 34025, Korea
  • 2Agency for Defense Development (ADD), Yuseong P.O. Box 35-5, Daejeon 34602, Korea
E-mail:,
Superhydrophobic and superoleophilic Ni foam was fabricated by immersion coating and drying method. The Ni foam was immersed in a mixture containing polytetrafluoroethylene (PTFE) and hydrophobic fumed silica (R805). The mixture was dispersed in a poly(vinylidene fluoride) (PVDF) solution and the PVDF was used as a binder. The as-prepared Ni foam showed superhydrophobic and superoleophilic properties simultaneously and had a water contact angle (WCA) of 155° for water and an oil contact angle (OCA) of 0° for oil. The PTFE-coated Ni foam maintained high separation efficiency after repeated separations (40 times) above 96% for the more viscous olive oil/water mixture and above 99% for the hexane/water mixture. The as-prepared nickel foam proved to be an excellent candidate for the separation of oil and water mixtures.
Keywords:Superhydrophobic;Fumed Silica;Nickel Foam;Polytetrafluoroethylene
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