CO2/N2 and O2/N2 Separation Using Mixed‐Matrix Membranes with MOF‐74 Nanocrystals Synthesized Via Microwave Reactions,Bulletin of the Korean Chemical Society

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CO2/N2 and O2/N2 Separation Using Mixed‐Matrix Membranes with MOF‐74 Nanocrystals Synthesized Via Microwave Reactions
Bulletin of the Korean Chemical Society ( IF 2.3 ) Pub Date : 2021-01-15 , DOI: 10.1002/bkcs.12217
Euijin Roh _{1,

2} , Iyan Subiyanto _{1,

3} , Wanuk Choi ₁ , Young Cheol Park ₄ , Churl‐Hee Cho ₂ , Hyunuk Kim _{1,

2,

3}

Affiliation

Due to their large surface areas and unique gas adsorption properties, mixed‐matrix membranes (MMMs) with metal–organic frameworks (MOFs) have been extensively studied in relation to various gas separations. In the present paper, we report the quick synthesis of MOF‐74 (M = Mg, Mn, Co, Ni) nanocrystals by microwave reactions and the fabrication of MMMs for use in CO₂/N₂ and O₂/N₂ separation. The scanning electron microscopy and energy dispersive X‐ray spectroscopy analysis revealed the homogenous distribution of the MOF‐74 nanocrystals within the polydimethylsiloxane (PDMS). The single gas permeation experiments showed the enhanced CO₂/N₂ and O₂/N₂ selectivity by adding the MOF‐74 nanocrystals to the PDMS. This enhanced CO₂/N₂ and O₂/N₂ selectivity may be due to the affinity of CO₂ and O₂ toward the Lewis acidic sites of the MOF‐74.

中文翻译：

使用通过微波反应合成的具有MOF-74纳米晶体的混合基质膜分离CO2 / N2和O2 / N2

由于它们的大表面积和独特的气体吸附特性，带有金属有机骨架（MOF）的混合基质膜（MMM）已针对各种气体分离进行了广泛的研究。在本文中，我们报道了通过微波反应快速合成MOF-74（M = Mg，Mn，Co，Ni）纳米晶体以及用于CO ₂ / N ₂和O ₂ / N ₂分离的MMM的制备。扫描电子显微镜和能量色散X射线光谱分析表明，聚二甲基硅氧烷（PDMS）中MOF-74纳米晶体的均匀分布。单一气体渗透实验显示出增强的CO ₂ / N ₂和O通过将MOF-74纳米晶体添加到PDMS中，具有₂ / N _2的选择性。这种提高的CO ₂ / N ₂和O ₂ / N ₂选择性可能是由于CO ₂和O ₂对MOF-74的Lewis酸性位点的亲和力。

更新日期：2021-03-18

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