The session will show the latest advancements in nanotechnology, specifically its role in enhancing the sustainability and efficacy of separating small molecules: the discussion extends beyond CO₂ capture, encompassing various separation processes crucial for environmental progress. Metal- organic frameworks (MOFs) and other nanomaterials with exceptional properties like high surface area and tunable pores hold immense promise. These materials enable targeted capture and separation of valuable molecules from diverse mixtures, such as CO₂ from flue gas or lithium from brines. The symposium will showcase how these nanotechnologies not only optimize capture processes but also achieve highly selective separations, emphasizing their contribution to a sustainable future.  A central theme will be the environmental benefit of integrating these advanced materials into existing systems. By facilitating efficient capture and separation processes, these innovations can enable, for instance, the sustainable recovery of critical resources like lithium. This aligns with the goals of a circular economy and reduces environmental footprints.