气凝胶连续的纳米多孔网络结构使得其具备很多独特的性能,被认为是一种非常有前途的新材料。纤维素是一种可再生、可生物降解的天然聚合物。利用纤维素制备的气凝胶具有纤维素的可再生性、生物相容性和生物降解性,同时具有密度低、孔隙率高、比表面积大等优点,还具有良好的气体扩散能力和吸附空间,是一种理想的气体吸附材料。综述了纳米纤维素基气凝胶的制备工艺及其在CO2、甲醛、VOCs等气体吸附领域的应用。总结并探讨了纳米纤维素基气凝胶在气体吸附领域的问题和发展前景。
Aerogels are considered as a promising new material due to their continuous nanoporous network structure,which makes them possess many unique properties.Cellulose is a renewable,biodegradable natural polymer.Aerogels prepared from cellulose have the advantages of reproducibility,biocompatibility and biodegradability of cellulose,low density,high porosity,large specific surface area,good gas diffusion ability and adsorption space,so it is an ideal gas adsorption material.The preparationprocess of nanocellulose-based aerogels and their applications in gas adsorption fields such as CO2,formaldehyde and VOCs were reviewed.The problems and prospects of nanocellulose aerogels in the field of gas adsorption were summarized and discussed.
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基金资助
国家自然科学基金(31800480);吉林省植物化工创新团队(20130521022JH);吉林省发改委产业创新专项资金项目(2021C036-9);2020年北华大学国家级创新训练项目(202010201017)
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