Mixed-Matrix Membrane Hollow Fibers of Cu3(BTC)2 MOF and Polyimide for Gas Separation and Adsorption
Mixed-Matrix Membrane Hollow Fibers of Cu3(BTC)2 MOF and Polyimide for Gas Separation and Adsorption
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用于气体分离和吸附的 Cu3(BTC)2 MOF 和聚酰亚胺混合基质膜中空纤维
DOI：
10.1021/ie1014958
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发表时间：
2010-12-15
影响因子：
4.2
通讯作者：
Hu, Ying
中科院分区：
文献类型：
--
作者：
Hu, Jun;Cai, Hongpei;Hu, Ying
具有高表面积的Cu-3（BTC）（2）的金属有机骨架（MOF）晶体合成了1396 m2·g-1的铜铜离子（Cu）与聚酰亚胺（PI）共混物，制备了用于气体分离的混合基体膜（MMM）。纤维截面的纺丝法SEM图像显示，由于Cu-3（BTC）（2）与PI之间的强亲和力，聚合物基体发生了显著的塑性变形。当Cu-3（BTC）（2）的负载量为6wt%Cu-3（BTC）（2）时，H-2的渗透率增加了45%，理想的选择性比纯PI的相应值增加了2-3倍
Metal-organic framework (MOF) crystals of Cu-3(BTC)(2) with a high surface area (1396 m(2).g(-1)) were synthesized and mixed with polyimide (PI) to prepare mixed-matrix membranes (MMMs) for gas separations The PI-Cu-3(BTC)(2) blend was successfully spun into MMM hollow fiber by the dry/wet-spinning method SEM images of the fiber cross sections revealed significant plastic deformation of the polymer matrix owing to the strong affinity between Cu-3(BTC)(2) and PI The H-2 permcance and the selectivity of H-2 with respect to other gases such as N-2, CO2, O-2, and CH4 both Increased markedly with increased Cu-3(BTC)(2) loading At a loading of 6 wt % Cu-3(BTC)(2), the permeance of H-2 increased by 45%, and the ideal selectivity increased by a factor of 2-3 compared to the corresponding values for pure PI