膜
钛
金属有机骨架
气体分离
基质(化学分析)
化学工程
金属
材料科学
化学
胺气处理
吸附
选择性
吸附
无机化学
高分子化学
巴勒
渗透
表面改性
作者
Xiangyu Guo,Hongliang Huang,Yujie Ban,Qingyuan Yang,Yuanlong Xiao,Yanshuo Li,Weishen Yang,Chongli Zhong
标识
DOI:10.1016/j.memsci.2015.01.007
摘要
High performance mixed matrix membranes arise from a targeted selection of constituent materials, especially the choice of fillers. An amine-functionalized metal-organic framework (MOF), NH2-MIL-125(Ti), was used in this work to prepare polysulfone-based mixed matrix membranes (MMMs). Permeation measurements on CO2/CH4 gas mixture demonstrate that the incorporation of NH2-MIL-125(Ti) particles can significantly improve the CO2 permeability compared to the pure polymer membrane, along with slightly enhanced CO2/CH4 separation factor. This work also shows that the separation factor at high pressures can remain almost unchanged for the prepared MMMs with the MOF loadings up to 20 wt%. The obtained results may provide useful information in facilitating the applications of promising MOF-containing MMMs for the practical membrane-based natural gas purification.
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