A multi-functional oil–water separator from a selectively pre-wetted superamphiphobic paper. Issue 28 (9th March 2015)

• Record Type: Journal Article
• Authors: Ge, Dengteng; Yang, Lili; Wang, Chenbo; Lee, Elaine; Zhang, Yongquan; Yang, Shu
• Is Part Of: Chemical communications. Volume 51:Issue 28(2015)
• Page Start: 6149
• Page End: 6152
• Publication Date: 2015-03-09
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/c4cc09813g
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : A multi-functional, gravity-driven oil–water separator is prepared by pre-wetting a superamphiphobic nanoparticle coated paper towel, which can selectively separate water or oil with high efficiency and flux. Abstract : A multi-functional oil–water separator is prepared from a paper towel spray coated with superamphiphobic ( i.e., superhydrophobic and superoleophobic) nanoparticles. After the separator is pre-wetted with ethanol, followed by water, water can be removed from the light oil–water mixture and emulsions by gravity with high separation efficiency (99.9%) and separation flux. Vice versa, heavy oil can be removed by gravity on an ethanol–oil pre-wetted SA-paper.