Declined ionic flux through the nano-pores of vertically aligned carbon nanotubes filled with PNIPAm hydrogel,
writer：Yuan-yuan Pan, Qiang Wu, Yu-yan Weng, Xiao-hua Zhang*, Zhao-hui Yang*, Jian-qiang Meng, Ophelia K. C
keywords：multiwall carbon nanotubes, ion flux
source：期刊
specific source：JOURNAL OF MATERIALS CHEMISTRY A
Issue time：2015年
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一chromatography, water purification and use as intelligent ionic channels.