一种吡啶基金属-有机框架材料、制备方法及其应用

By preparing pyridine-based metal-organic framework materials with hexafluorosilicate ions (SiF62-), the problem of separating acetylene from ethylene and ethane was solved, achieving efficient, low-cost, and environmentally friendly separation results.

CN116987280BActive Publication Date: 2026-07-17CHINA UNIV OF PETROLEUM (EAST CHINA)

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA UNIV OF PETROLEUM (EAST CHINA)
Filing Date
2023-08-07
Publication Date
2026-07-17

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Abstract

一种吡啶基金属‑有机框架材料、制备方法及其应用,属于金属‑有机框架材料技术领域。是将3,6‑二(4‑吡啶基)‑1,2,4,5‑四甲基苯溶解于甲醇中,再将CuSiF6溶解于去离子水中;然后将两种溶液超声混合均匀,将得到的混合原料加热至80~90℃并保持15~30h,冷却至室温后得到蓝色棒状晶体,再洗涤干燥后得到吡啶基金属‑有机框架材料。本发明所述的吡啶基金属‑有机框架材料具有一种4‑连接节点的网络结构,属于sql拓扑类型。由于框架中具有大量六氟硅酸根离子(SiF62‑)以及甲基官能团,使得该配合物对乙炔气体具有选择性吸附,且吸附量远大于乙烯与乙烷,可以实现对乙炔 / 乙烯和乙炔 / 乙烷的高效分离。
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