Omniphobic Membrane for Robust Membrane Distillation

Title
Omniphobic Membrane for Robust Membrane Distillation
Authors
부찬희Shihong LinSiamak NejatiYunxia HuChinedum O. OsujiMenachem Elimelech
Issue Date
2014-11
Publisher
Environmental Science and Technology Letters
Citation
VOL 1, NO 11-447
Abstract
In this work, we fabricate an omniphobic microporous membrane for membrane distillation (MD) by modifying a hydrophilic glass fiber membrane with silica nanoparticles followed by surface fluorination and polymer coating. The modified glass fiber membrane exhibits an anti-wetting property not only against water but also against low surface tension organic solvents that easily wet a hydrophobic polytetrafluoroethylene (PTFE) membrane that is commonly used in MD applications. By comparing the performance of the PTFE and omniphobic membranes in direct contact MD experiments in the presence of a surfactant (sodium dodecyl sulfate, SDS), we show that SDS wets the hydrophobic PTFE membrane but not the omniphobic membrane. Our results suggest that omniphobic membranes are critical for MD applications with feed waters containing surface active species, such as oil and gas produced water, to prevent membrane pore wetting.
URI
http://pubs.kist.re.kr/handle/201004/72812
ISSN
2328-8930
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE