Densely packed vertically aligned carbon nanotube-polymer composite membrane fabrication and characterization for selective filtration of liquids
Document Type
Journal Article
Publisher
Timeline Publication
School
Electron Science Research Institute
RAS ID
23604
Abstract
In this paper, the permeance of membranes based on the use of high-density Vertically-Aligned Carbon Nanotubes (VACNTs) in conjunction with Polydimethylsiloxane (PDMS), as filler material, are investigated for polar and non-polar liquids. Reactive ion etching is used to enhance the hydrodynamic flow properties of the VACNT membranes. Experimental results show that RIE treatment introduces hydroxyl ions (-OH) on the surface of the VACNT membranes, thus enhancing their gatekeeping activity and hydrophilicity simultaneously, and leading to an increase in flow rate for polar and non-polar liquids. The measured permeance improvement factors for water, ethanol, IPA, hexane and gasoline are 100%, 37.2%, 11.8%, 20.9% and 3.8%, respectively, with respect to Oxygen-plasma-treated VACNT membranes.
Access Rights
free_to_read
Comments
Trivedi, S., & Alameh, K. (2017). Densely packed vertically aligned carbon nanotube-polymer composite membrane fabrication and characterization for selective filtration of liquids. International Journal of Engineering Innovations and Research. 6(2), 114 - 119. Available here