Chemically Cross-Linked MOF Membrane Generated from Imidazolium-Based Ionic Liquid-Decorated UiO-66 Type NMOF and Its Application toward CO2 Separation and Conversion.
Chemically Cross-Linked MOF Membrane Generated from Imidazolium-Based Ionic Liquid-Decorated UiO-66 Type NMOF and Its Application toward CO2 Separation and Conversion.
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DOI：
10.1021/acsami.7b12697
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发表时间：
2017-10
影响因子：
9.5
通讯作者：
Bing-Jian Yao;Luo-Gang Ding;Fei Li;Jiang Li;Qi-Juan Fu;Y. Ban;Ang Guo;Yu‐Bin Dong
中科院分区：
文献类型：
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作者：
Bing-Jian Yao;Luo-Gang Ding;Fei Li;Jiang Li;Qi-Juan Fu;Y. Ban;Ang Guo;Yu‐Bin Dong
二氧化碳的捕获和转化对于减少温室气体排放具有重要意义。纳米金属有机骨架(NMOF)由于其结构的多样性和可调节的纳米笼微环境，可以作为理想的聚合物膜填料。本论文通过咪唑离子液体(IL)修饰的UIO-66型纳米粒子(NPs)与端异氰酸酯基聚氨酯齐聚物在温和的条件下进行二次聚合，成功地构建了一种双功能、坚固、化学交联的NMOF基膜。离子液体修饰的MOF聚合物膜对CO2在氮气和甲烷上表现出高度的选择性吸附。此外，制得的膜还可以在常压下与环氧化物进行环加成反应，作为CO2转化的高活性多相催化剂。
Carbon dioxide capture and transformation are of great importance to make cuts in greenhouse gas emissions. Nanometal-organic frameworks (NMOFs) could serve as ideal fillers for polymer membranes owing to their structural diversity and regulable microenvironment of the nanocage. Herein, a bifunctional, robust, and chemically cross-linked NMOF-based membrane was successfully constructed by the postsynthetic polymerization of imidazolium-based ionic liquid (IL)-decorated UiO-66 type nanoparticles (NPs) and the isocyanate-terminated polyurethane oligomer under mild conditions. The IL-modified MOF-polymer membranes exhibit a highly selective adsorption for CO2 over N2 and CH4. In addition, the obtained membrane can also be a highly active heterogeneous catalyst for CO2 transformation by cycloaddition with epoxide under an ambient pressure.