西南林业大学学报2018，Vol.38Issue(3)：181-187,7.DOI:10.11929/j.issn.2095-1914.2018.03.026
氨基改性纳米纤维素气凝胶的制备及吸附性能研究
Preparation and Adsorption Properties of Ammonia Modified Nano Cellulose Aerogels
摘要
Abstract
In order to improve and enhance the adsorption selectivity and adsorption capacity of nano cellulose (CNF) aerogels on CO2,The spherical hydrogels prepared were graft modified with 3-(2-aminoethylamino) propyl-methyldimethoxysilane as modifier, and then freeze-dried to prepare amino-modified CNF aerogels. The aerogels were characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, specific surface area porosimeter,and conduct CO2adsorption/desorption test. The results showed that the adsorption capacity of modi-fied CNF aerogels increased with the increase of nitrogen content. When the initial pressure is 0.13 MPa and the temperature is 20℃,the maximum CO2adsorption capacity is 1.80 mmol/g,which is much larger than that of un-modified CNF aerogels. After 10 adsorption/desorption cycles,its adsorption capacity is basically stable with good regeneration capacity.关键词
纳米纤维素/气凝胶/氨基改性/吸附/CO2Key words
nano cellulose/aerogels/amino modification/adsorption/CO2分类
农业科技引用本文复制引用
张天蒙,张洋,刘双,江华,姚远..氨基改性纳米纤维素气凝胶的制备及吸附性能研究[J].西南林业大学学报,2018,38(3):181-187,7.基金项目
林业公益性行业科研专项项目(201504603)资助. （201504603）
