化工环保2017，Vol.37Issue(5)：548-552,5.DOI:10.3969/j.issn.1006-1878.2017.05.010
超疏水沸石咪唑酯骨架材料ZIF-90的制备及其气体吸附性能
Preparation of superhydrophobic zeolitic imidazolate framework-90 (ZIF-90) and its gas adsorption capability
摘要
Abstract
Using self-made zeolitic imidazolate framework ZIF-90 as material and self-made 2,3,4,5,6-penta fluoro benzylamine as modifier,the superhydrophobic ZIF-90 was prepared by post-modification method and characterized by SEM,XRD,FTIR and so on.Its gas adsorption capability was determined.The characterization result showed that:Structure and morphology of the superhydrophobic ZIF-90 crystal was good;The water contact angle of it was up to 152.1°;The imine condensation reaction of modifier molecule with free aldehyde group on ZIF-90 was successfully completed.The gas adsorption experimental results showed that:When the relative pressure was less than 0.02,the CO2 adsorption capacity of superhydrophobic ZIF-90 was obviously than that of ZIF-90,and the ideal adsorption selectivity coefficient of superhydrophobic ZIF-90 for CO2/N2 and CO2/CH4 was increased from 15.76 and 4.88 before modification to 33.28 and 17.13 respectively;The superhydrophobic ZIF-90 had excellent hydrophobic property.关键词
超疏水/金属有机骨架/沸石咪唑酯骨架/CO2吸附Key words
superhydrophobicity/metal-organic frameworks/zeolitic imidazolate frameworks/CO2 adsorption分类
资源环境引用本文复制引用
刘传耀,黄爱生..超疏水沸石咪唑酯骨架材料ZIF-90的制备及其气体吸附性能[J].化工环保,2017,37(5):548-552,5.基金项目
国家自然科学基金项目(21576273,21606246) （21576273,21606246）
宁波市创新团队项目(2014B81004). （2014B81004）
