Related Experiment Video
Updated: Jul 3, 2026
09:39
Proof-of-Concept for Gas-Entrapping Membranes Derived from Water-Loving SiO2/Si/SiO2 Wafers for Green Desalination
Published on: March 1, 2020
MOF glass-based membranes: a promising platform for advanced separation.
Xiaowen Lv1,2, Dudu Li1,2, Peng Li1,2
1State Key Laboratory of Advanced Separation Membrane Materials, Tiangong University, Tianjin, 300387, P. R. China. guoxiangyu@tiangong.edu.cn.
Materials Horizons
|July 2, 2026
Summary
Metal-organic framework (MOF) glasses offer tunable porous materials with enhanced processability for gas separation membranes. Their unique structure eliminates defects, enabling high selectivity and scalability in separation science.
Area of Science:
- Materials Science
- Chemical Engineering
- Nanotechnology
Background:
- Metal-organic frameworks (MOFs) are crystalline porous materials with tunable structures.
- Traditional MOFs face challenges in processability and membrane fabrication.
- MOF glasses combine MOF tunability with polymer-like processability.
Purpose of the Study:
- To provide a comprehensive review of MOF glass-based membranes.
- To focus on their application in high-selectivity and scalable gas separation.
- To discuss formation, structure, characterization, and challenges.
Main Methods:
- Review of literature on MOF glass formation mechanisms.
- Analysis of structural features and classifications.
- Evaluation of advanced characterization techniques.
- Discussion of melt-quenching processes and crystal-to-glass transitions.
Main Results:
- MOF glasses eliminate grain boundary defects, offering superior thermal stability.
- Melt-quenching creates tailored unsaturated metal sites and coordination defects.
- These defects optimize adsorption, pore size, and diffusion for gas separation.
- MOF glasses demonstrate potential for high-selectivity and scalable gas separations.
Conclusions:
- MOF glasses represent a promising platform for advanced separation membranes.
- Understanding structure-property relationships is crucial for optimizing performance.
- Addressing fabrication and industrial integration challenges is key for future development.
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