Polycrystalline Metal–Organic Framework Membranes for Pervaporation

Abstract

Pervaporation (PV) is an emerging membrane technology for liquid separations due to its small carbon footprint. Recently, a large number of metal−organic frameworks (MOFs) have been employed as membrane materials for PV. Herein, advances in polycrystalline MOF membranes for PV are reviewed. The structural characteristics (10 MOFs), fabrication methods (five types), and PV applications (four kinds) of polycrystalline MOF membranes are intensively studied, and their relationships are established. Finally, a perspective on membrane structure, performance, large-scale production, and operation stability under industrial conditions is proposed.

Ongoing Progress on Pervaporation Membranes for Ethanol Separation

“…The application of these materials in PV processes for the conce ganic solvents has witnessed remarkable progress since the 1990s. In rece meric membranes have emerged as a promising choice for the dehydration In recent years, a number of comprehensive reviews have addressed various aspects of pervaporation separation, often focusing on specific types of membrane materials [16,26,27] or particular applications [15,[28][29][30]. However, to the best of our knowledge, there has not been a detailed overview of the ongoing and most recent developments in pervaporation (PV) membranes, particularly with a primary emphasis on ethanol dehydration.…”

“…In recent years, a number of comprehensive reviews have addressed v of pervaporation separation, often focusing on specific types of memb [16,26,27] or particular applications [15,[28][29][30]. However, to the best of o there has not been a detailed overview of the ongoing and most recent de pervaporation (PV) membranes, particularly with a primary emphasis on dration.…”

Glycine-Modified Co-MOF Pervaporation Membrane to Enhance Water Transporting

“…Li et al prepared hydrophilic MOF-801 MMM with excellent ethanol/water separation performance. With the advantages of high porosity, high surface area, and tunable surface function, MOF materials for PV have set off research booms. − A MOF has been widely used in organic solvent separation due to the lamellar structure and stacked two-dimensional transport channels . An ultrathin two-dimensional Co-based MOF nanomaterial (Co-MOF) has already made its mark in the electrocatalytic field by virtue of its rich hydrophilic group and layered structure on the surface. , The introduction of Co-MOF into organic membrane materials improved the membrane function.…”