Abstract
In this paper, biomass-based nanocellulose aerogel with high CO2 adsorption capacity was obtained via a facile amine gas phase modification method. After the modification process, the color of the nanocellulose aerogel changed from white to yellowish, accompanied by the decrease of specific surface area and the increase of the mechanical strength. The chemical interaction between nanocellulose and loaded aminosilane was also investigated by X-ray photoelectron spectroscopy and Fourier transform infrared spectroscopy. Preliminary study found that the adsorption capacity of the modified nanocellulose aerogel for CO2 (1.59 mmol/g) increased by 7.4 times compared with that of the pristine one (0.19 mmol/g). Therefore, the amino gas phase modification method can be exploited to prepare CO2 adsorbents effectively and might as well provide a new viable strategy to cut down the emission of waste gases containing amine.
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Acknowledgements
The authors would like to acknowledge the financial supports from National Key R&D Program of China (2018YFC1508704), the Special Fund for Forest Scientific Research in the Public Welfare (201504603) and National Natural Science Foundation of China (50979028).
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Zhang, T., Zhang, W., Zhang, Y. et al. Gas phase synthesis of aminated nanocellulose aerogel for carbon dioxide adsorption. Cellulose 27, 2953–2958 (2020). https://doi.org/10.1007/s10570-020-03035-7
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DOI: https://doi.org/10.1007/s10570-020-03035-7