Electrospun Polystyrene Nanofiber Membrane with Superhydrophobicity and Superoleophilicity for Selective Separation of Water and Low Viscous Oil

Title
Electrospun Polystyrene Nanofiber Membrane with Superhydrophobicity and Superoleophilicity for Selective Separation of Water and Low Viscous Oil
Authors
이민욱Seongpil AnSanjay S. LattheChangmin LeeSeungkwan HongSam S. Yoon
Keywords
PS nanofibers; electrospinning, membrane; superhydrophobic; superoleophilic; oil-water separation
Issue Date
2013-11
Publisher
ACS Applied Materials & Interfaces
Citation
VOL 5, NO 21-10604
Abstract
The ability to prepare solid surfaces with well-controlled superhydrophobic and superoleophilic properties is of paramount importance to water oil separation technology. Herein, we successfully prepared superhydrophobic-superoleophilic membranes by single-step deposition of polystyrene (PS) nanofibers onto a stainless steel mesh via electrospinning. The contact angles of diesel and water on the prepared PS nanofiber membrane were 0 degrees and 155 degrees +/- 30 degrees, respectively. Applications of the PS nanofiber membrane toward separating liquids with low surface tension, such as oil, from water were investigated in detail. Gasoline, diesel, and mineral oil were tested as representative low-viscosity oils. The PS nanofiber membranes efficiently separated several liters of oil from water in a single step, of only a few minutes' duration. The superhydrophobic PS nanofiber membrane selectively absorbs oil, and is highly efficient at oil water separation, making it a very promising material for oil spill remediation.
URI
http://pubs.kist.re.kr/handle/201004/66138
ISSN
1944-8244
Appears in Collections:
KIST Publication > Article
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