Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 3, Issue 20, Pages 11111-11116Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ta01749a
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Funding
- National Basic Research Program of China (973Program) [2012CB821505]
- National Natural Science Foundation of China [21204059, 21204058, 21274103, 21104054]
- Natural Science Foundation of Jiangsu Province [BK2011300]
- Specially-Appointed Professor Plan in Jiangsu Province [SR10800312]
- Project for Jiangsu Scientific and Technological Innovation team
- National Science Foundation [DMR-1310536]
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We demonstrate a novel nano-porous membrane of 10 nm diameter multiwall carbon nanotubes (MWCNTs) filled with thermally sensitive poly(N-isopropylacrylamide) (PNIPAm) hydrogel. High-resolution transmission electron microscopy (HRTEM), micro FT-IR spectroscopy and confocal laser scanning fluorescence microscopy are used to confirm that the MWCNTs are filled with the hydrogel. An improvement in the hydrophilicity of the gel-filled nano-channels is expected to promote the migration of aqueous solutions and the transportation of water. Meanwhile a decrease in ion flux is observed after the nano-pores of MWCNTs are filled with the hydrogel. This new hydrogel filled-CNT material shows potential for nano-chromatography, water purification and use as intelligent ionic channels.
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