Metal-organic frameworks for xenon and krypton separation

The separation of xenon and krypton has significance in industrial development, and separation methods have environmental consequences. Compared to the present cryogenic distillation process, separation of xenon and krypton by metal-organic frameworks provides an efficient way to save energy and money. Studies in this field have increased rapidly in recent years. In this paper, an overview of recent progress in adsorption and separation of xenon and krypton using metal-organic-framework-based adsorbents is provided. We cover the structural aspects that affect the adsorption and separation properties, strategies to improve capture and separation, and evaluation techniques. Additionally, the importance of computational chemistry in the study of adsorption and separation of xenon and krypton mixtures by metal-organic frameworks is highlighted. Finally, we elaborate on existing challenges and prospects in this burgeoning field.