Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/29139
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Title: Preparation and Transport Performances of High-Density, Aligned Carbon Nanotube Membranes
Authors: Zhang, L
Zhao, B
Jiang, C
Yang, J
Zheng, G 
Issue Date: 2015
Source: Nanoscale research letters, 2015, v. 10, 266, p. 1-8
Abstract: We report a simple and effective method for the preparation of high-density and aligned carbon nanotube (CNT) membranes. The CNT arrays were prepared by water-assisted chemical vapor deposition (CVD) and were subsequently pushed over and stacked into dense membranes by mechanical rolling. It was demonstrated that various gases and liquids, including H2, He, N2, O2, Ar, water, ethanol, hexane, and kerosene, could effectively pass through the aligned carbon nanotube membranes. The membranes exhibited different selections on different gases, indicating that there was a separation potential for the gas mixtures. The selectivities (H2 relative to other gases) of H2/He, H2/N2, H2/O2, and H2/Ar were found to be lower than that of the ideal Knudsen model. For pure water, the permeability was measured to be 3.23 ± 0.05 ml·min−1·cm−2 at 1 atm, indicating that the CNT membranes were promising for applications in liquid filtration and separation.
Keywords: Carbon nanotubes
Gas transport
Liquid transport
Nano-filtration membrane
Separation
Publisher: Springer New York LLC
Journal: Nanoscale Research Letters 
ISSN: 1931-7573
DOI: 10.1186/s11671-015-0970-8
Rights: © 2015 Zhang et al. This is an Open Access article distributed under the terms of the Creative Commons Attribution License(http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium,provided the original work is properly credited.
The following publication Zhang, L., Zhao, B., Jiang, C., Yang, J., & Zheng, G. (2015). Preparation and Transport Performances of High-Density, Aligned Carbon Nanotube Membranes. Nanoscale Research Letters, 10, 266, 1-8 is available at https://dx.doi.org/10.1186/s11671-015-0970-8
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