Document Type
Journal Article
Publisher
Springer Verlag
School
Electron Science Research Institute
RAS ID
21770
Abstract
In this paper, vertically aligned carbon nanotube (VACNT) membranes of different densities are developed and their performances are investigated. VACNT arrays of densities 5 × 109, 1010, 5 × 1010 and 1011 tubes cm−2, are initially grown on 1 cm × 1 cm silicon substrates using chemical vapour deposition. A VACNT membrane is realised by attaching a 300 μm-thick 1 cm × 1 cm VACNT array on silicon to a 4″ glass substrate, applying polydimethylsiloxane (PDMS) through spin coating to fill the gaps between the VACNTs, and using a microtome to slice the VACNT–PDMS composite into 25-μm-thick membranes. Experimental results show that the permeability of the developed VACNT membranes increases with the density of the VACNTs, while the salt rejection is almost independent of the VACNT density. The best measured permeance is attained with a VACNT membrane having a CNT density of 1011 tubes cm−2 is 1203 LMH at 1 bar.
DOI
10.1186/s40064-016-2783-3
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Comments
Trivedi, S., & Alameh, K. (2016). Effect of vertically aligned carbon nanotube density on the water flux and salt rejection in desalination membranes. SpringerPlus, 5(1), 1-13.
https://doi.org/10.1186/s40064-016-2783-3