콘텐츠 본문
논문 해외 국제전문학술지(SCI급) Polydopamine-mediated all-in-one device with superhydrophilicity and superhydrophobicity for one step oil/water separation and pollutant purification
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2016-11
- 저자명 Nara Han, Yong Taek Lim, Hye Young Koo, and Won San Choi*
- 학술지명 Polymer
- 발행처명 ELSEVIER
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 4
- 논문 다운로드 링크(외부) https://doi.org/10.1016/j.polymer.2016.11.004
- 연구분야 공학 > 화학공학
논문 초록 (Abstract)
Polydopamine (Pdop) is coated on copper mesh (Cu mesh/Pdop). Upon heat treatment of the Cu mesh/Pdop, Pdop particles are newly formed at the surface of the Cu mesh/Pdop, which is used as a superhydrophilic mesh. After octadecylamine (ODA) is coated on the heat-treated Cu mesh/Pdop, hierarchical and strong ODA crystals are formed by special interactions between the ODA and the Pdop. The surface morphologies of the ODA crystals are tuned by varying the amount of Pdop particles. Similar results are obtained when the sponge is used as a template in lieu of the Cu mesh, and this sponge is used as a superhydrophobic sponge. A self-floating all-in-one device that simultaneously coexists in water as well as in oil is also prepared by combining the Pdop particle-mediated superhydrophilic mesh and superhydrophobic sponge composites. The self-floating all-in-one device simultaneously exhibits excellent removal performance for heavy metal ions in the water layer and excellent separation efficiency of oil in the oil layer due to its amphiprotic nature.
