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MUF-15的功能化增强了混合矩阵膜中CO₂/CH_{4的选择性}

Yiming Zhang¹, Elnaz Jangodaz¹, Ben Hang Yin^2,3

¹MacDiarmid Institute for Advanced Materials and Nanotechnology, School of Natural Sciences, Massey University, Palmerston North, New Zealand. s.telfer@massey.ac.nz.

Chemical communications (Cambridge, England)

|May 17, 2024

概括

功能化的金属有机框架 (MUF-15-F) 创建了先进的混合矩阵膜. 这些膜具有卓越的二氧化碳透性和二氧化碳2/CH4选择性,超过了气体分离应用的性能基准.

科学领域:

材料科学材料科学材料科学
化学工程是化学工程的重要组成部分.
纳米技术纳米技术

背景情况:

金属有机框架 (MOF) 为气体分离提供可调节的多孔性.
混合矩阵膜 (MMM) 将MOF与聚合物结合起来,以提高分离性能.
梅西大学框架-15 (MUF-15) 是一个具有可修改孔状特性的MOF.

研究的目的:

开发高性能混合矩阵膜,以实现高效的气体分离.
为了研究 MUF-15 连接体功能化对膜性质的影响.
评估新型MMM的CO2透性和CO2/CH4选择性.

主要方法:

合成MUF-15及其功能化衍生物MUF-15-F.
通过将MUF-15衍生物与6FDA-DAM聚合物混合制造混合矩阵膜.
气体透性测试用于测量二氧化碳透性和二氧化碳2/CH4选择性.

主要成果:

装有MUF-15-F的膜在30 wt%的负载下显示了1300 Barrer.的二氧化碳透性.
这些膜的CO2/CH4选择性达到37.1.1.
性能指标超过了具有父MUF-15的膜的性能指标,并超过了既定的罗伯森上限.

结论:

MUF-15的干功能化显著提高了MMM在气体分离方面的性能.
开发的基于MUF-15-F的MMM代表了膜技术的一个有前途的进步.
这些发现表明,创建下一代气体分离膜的可行途径.

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