02 硅烷表面修饰增强氧化镁CO_2中温吸附性能

赵景玉,郭小惠

• 1:内蒙古科技大学化学与化工学院

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摘要(Abstract)：

利用球磨-水热方法合成了具有高比表面积的氧化镁材料.经正辛基三乙氧基硅烷修饰后，氧化镁的比表面积增加，表面疏水性变强.特别是经0.2 mL硅烷修饰后的氧化镁比表面积高达210.1 m~2/g.硅烷对氧化镁表面的修饰极大地提高了材料的CO_2吸附性能.在200℃下，经0.1 mL硅烷修饰后氧化镁的CO_2吸附量达到69 mg_(CO_2)/g,是纯氧化镁的3.1倍.

关键词(KeyWords)： 氧化镁;表面修饰;CO_2中温吸附;表面疏水

基金项目(Foundation): 内蒙古自治区高等学校科学研究基金资助项目(NJZZ21022)

作者(Author): 赵景玉,郭小惠

DOI: 10.16559/j.cnki.2095-2295.2023.02.002

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