Growth of Metal-Organic Frameworks on Polymer Surfaces
Growth of Metal-Organic Frameworks on Polymer Surfaces
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DOI：
10.1021/ja106381x
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发表时间：
2010-11-10
影响因子：
15
通讯作者：
Hatton, T. Alan
中科院分区：
文献类型：
--
作者：
Centrone, Andrea;Yang, Ying;Hatton, T. Alan
聚合物基材已使用原位微波辐射直接在聚丙烯腈上合成的 MOF 材料 (MIL-47) 进行功能化。使用扫描电子显微镜、X 射线衍射、傅立叶变换红外光谱和 X 射线光电子能谱研究了 MIL-47 在这些基底上的生长随微波照射时间的变化。 PAN 表面上的腈基转化为羧酸基团对于 MIL-47 在基材上的生长是必要的。 MIL-47 晶体随着时间的推移而生长，以相关的无序前体相为代价，该前体相缺乏 MIL-47 的长程有序。这项工作为开发新型 MOF-聚合物杂化材料铺平了道路，该材料将 MOF 的应用扩展到膜分离、过滤和防护纺织品等领域。
Polymer substrates have been functionalized with a MOF material (MIL-47) synthesized directly on polyacrylonitrile using in situ microwave irradiation. The growth of MIL-47 on these substrates was studied as a function of microwave irradiation time using scanning electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy. The conversion of nitrile to carboxylic acid groups on the PAN surface was necessary for the growth of MIL-47 on the substrate. MIL-47 crystals grew over time at the expense of a related disordered precursor phase, which lacks the long-range order of MIL-47. This work paves the way for the development of a new class of hybrid MOF-polymer materials that will extend the applications of MOFs to fields such as membrane separations, filtration, and protective textiles.