Abstract
Novel nanoparticle organic hybrid materials (NOHMs), which have the potential for carbon dioxide physical-chemical capture capacity, have been synthesized. Multi-walled nanotubes (MWNTs), which have the physical storage capacity for gas, were assembled as the core of NOHMs. The surface of MWNTs was functionalized with Jeffamine M-2070 and M-1000 (polyetheramines), which can absorb carbon dioxide via chemical reaction. The structure of NOHMs was verified by Fourier transform infrared (FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), and UV-Vis spectroscopy. The weight percentages of MWNTs in NOHMs are 22.1 wt% and 21.4 wt%, respectively. Differential scanning calorimetry (DSC) curves show that the relative crystallinity percent of NOHMs-M2070 and NOHMs-M1000 is 38.88 and 40.56 %, respectively. Transmission electron microscopy (TEM) images show the morphology and structure of NOHMs at the nanometer level. Theological properties of NOHMs exhibit the viscosity and elasticity of NOHMs generated from liquid-like behavior varying the temperature and stress. CO2 capture capacity is tested from 0 to 6 MPa at 298 K. The amine groups, ether groups, and physical interaction between MWNTs and JEFFAMINE have significant effect on CO2 capture capacity. The storage property of MWNTs contributes to CO2 capture capacity. NOHMs based on MWNTs with excellent regeneration capacity have the promising potential for CO2 capture.
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The fund for this work is supported by National Natural Science Foundations (51373137), and graduate starting seed fund of Northwestern Polytechnical University (Z2014067).
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Qu, P., Zheng, Y., Yang, R. et al. Effect of canopy structures on CO2 capture capacity and properties of NONMs. Colloid Polym Sci 293, 1623–1634 (2015). https://doi.org/10.1007/s00396-015-3537-4
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DOI: https://doi.org/10.1007/s00396-015-3537-4