A ZIF-71 Hollow Fiber Membrane Fabricated by Contra-Diffusion

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• 作者：Kang Huang ; Qianqian Li ; Gongping Liu ; Jie Shen ; Kecheng Guan ; Wanqin Jin
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2015
• 出版时间：August 5, 2015
• 年：2015
• 卷：7
• 期：30
• 页码：16157-16160
• 全文大小：261K
• ISSN：1944-8252

文摘

As a subclass of metal鈥搊rganic framework materials, zeolitic imidazolate frameworks (ZIFs) have exhibited great potential for numerous applications because of their special three-dimensional structure. Up to now, utilizing ZIF membranes for liquid separations is still limited because it is very difficult to select suitable materials and to fabricate integrated membranes. In this work, a modified contra-diffusion method was carried out to prepare ZIF-71 hollow fiber membranes. The metals Zn²⁺ and the organic links imidazole would meet and react on the interface of ceramic hollow fiber through diffusion. The as-prepared ZIF-71 membrane exhibits good performance in separation of ethanol鈥搘ater mixtures.