Issue 13, 2015

High-performance reverse osmosis nanocomposite membranes containing the mixture of carbon nanotubes and graphene oxides

Abstract

Polyamide reverse osmosis membranes containing carbon nanotubes with acidic groups (CNTa), graphene oxide (GO), and both CNTa and GO (CNTa–GO) were prepared by the interfacial polymerization of trimesoyl chloride solutions in hexane and m-phenylenediamine aqueous solutions containing carbon nanomaterials. All of the polyamide membranes containing the carbon nanomaterials showed considerably improved membrane performances, such as water flux, chlorine resistance, long-term durability, and mechanical properties, compared to the polyamide membrane without any of the carbon nanomaterials due to the advantageous properties of the CNT and GO as the filler materials. The largest improvement of membrane performances was observed in the polyamide membrane with CNTa–GO (the mixture of CNTa and GO). CNTa–GO can be more well-dispersed in the aqueous solution than the one-component carbon nanomaterials, such as CNTa and GO, due to the surfactant effects of GO, and then, the polyamide membrane with CNTa–GO can contain the largest amount of the carbon materials among the membranes and show the best membrane performances.

Graphical abstract: High-performance reverse osmosis nanocomposite membranes containing the mixture of carbon nanotubes and graphene oxides

Supplementary files

Article information

Article type
Paper
Submitted
11 Nov 2014
Accepted
16 Dec 2014
First published
16 Dec 2014

J. Mater. Chem. A, 2015,3, 6798-6809

Author version available

High-performance reverse osmosis nanocomposite membranes containing the mixture of carbon nanotubes and graphene oxides

H. J. Kim, M. Lim, K. H. Jung, D. Kim and J. Lee, J. Mater. Chem. A, 2015, 3, 6798 DOI: 10.1039/C4TA06080F

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