渗透汽化
沸石咪唑盐骨架
膜
聚合物
水溶液
化学工程
材料科学
制作
丁醇
正丁醇
色散(光学)
化学
有机化学
乙醇
金属有机骨架
复合材料
渗透
吸附
医学
生物化学
替代医学
病理
工程类
物理
光学
作者
Hongwei Fan,Shi Qiu,Hao Yan,Shulan Ji,Jinxiang Dong,Guojun Zhang
标识
DOI:10.1002/ange.201309534
摘要
Abstract The ability to obtain a maximum loading of inorganic nanoparticles while maintaining uniform dispersion in the polymer is the key to the fabrication of mixed‐matrix membranes with high pervaporation performance in bioalcohol recovery from aqueous solution. Herein, we report the simultaneous spray self‐assembly of a zeolitic imidazolate framework (ZIF)–polymer suspension and a cross‐linker/catalyst solution as a method for the fabrication of a well‐dispersed ZIF‐8–PDMS nanohybrid membrane with an extremely high loading. The ZIF‐8–PDMS membrane showed excellent biobutanol‐permselective pervaporation performance. When the ZIF‐8 loading was increased to 40 wt %, the total flux and separation factor could reach 4846.2 g m −2 h −1 and 81.6, respectively, in the recovery of n ‐butanol from 1.0 wt % aqueous solution (80 °C). This new method is expected to have serious implications for the preparation of defect‐free mixed‐matrix membranes for many applications.
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