Zeolitic imidazolate framework composite membranes and thin films: synthesis and applications.
Zeolitic imidazolate framework composite membranes and thin films: synthesis and applications.
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DOI：
10.1039/c3cs60480b
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发表时间：
2014-06
影响因子：
46.2
通讯作者：
Jianfeng Yao;Huanting Wang
中科院分区：
文献类型：
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作者：
Jianfeng Yao;Huanting Wang
沸石咪唑酯骨架材料（ZIFs）是金属有机骨架材料的一个子类，由咪唑酯桥连的四面体金属离子构成。它们具有永久孔隙率以及相对较高的热稳定性和化学稳定性，这使其成为许多工业应用的有吸引力的候选材料。近年来，在将ZIFs开发用于气体分离、液体分离（渗透蒸发）和功能器件的膜及薄膜方面取得了重大进展。已经报道了多种制备ZIF膜和薄膜的技术，例如直接合成、二次合成、反应性晶种法以及使用功能性化学物质作为连接体和逆向扩散合成等。由于ZIFs与聚合物具有良好的相容性，它们已被高含量地掺入聚合物中以形成混合基质膜。所得的对称致密或不对称复合膜在气体分离和通过渗透蒸发的液体分离中表现出良好的性能。本文综述了ZIF膜/薄膜、ZIF - 聚合物混合基质膜及其应用的最新进展。
Zeolitic imidazolate frameworks (ZIFs), a subclass of metal organic frameworks, are built of tetrahedral metal ions bridged by imidazolates. They have permanent porosity and relatively high thermal and chemical stability, which make them attractive candidates for many industrial applications. In recent years, significant progress has been made in developing ZIFs into membranes and thin films for gas separation, liquid separation (pervaporation) and functional devices. Various techniques, such as direct synthesis, secondary synthesis, reactive seeding and functional chemicals as linkers, and contra-diffusion synthesis, have been reported for the fabrication of ZIF membranes and films. As ZIFs have good compatibility with polymers, they have been incorporated into polymers with high loadings to form mixed matrix membranes. The resulting symmetric dense or asymmetric composite membranes exhibit good performance in gas separation and liquid separation via pervaporation. The recent developments of ZIF membranes/films, ZIF-polymer mixed matrix membranes and their applications are reviewed in this article.