An overview of metal-organic frameworks and their magnetic composites for the removal of pollutants

As a result of serious pollution in the water environment, sewage disposal has been receiving a lot of attention from the water industry. Metal-organic frameworks (MOFs) attract a lot of interest in the adsorption and sep-aration due to their complex structures and easily adjustable pore sizes. Magnetic MOFs inheriting the advan-tages of both large surface area and easy recovery have great potentials in the adsorption and separation of pollutants. This paper reviews the recent research progress on the adsorption and separation of ions, dyes and other contaminants by different types of MOFs (magnetic MOFs and non-magnetic MOFs) and their magnetic composites (Fe3O4@MOF) in aqueous environments. The factors affecting the adsorption of pollutants, and the thermodynamic and kinetic effects of adsorption are discussed with detailed examples. Finally, the challenges and opportunities for further development of magnetic MOFs are discussed and elucidated.

Automated summary

Due to serious water pollution, sewage disposal has gained significant attention in the water industry. Metal-organic frameworks (MOFs) have attracted interest in adsorption and separation due to their complex structures and adjustable pore sizes. Magnetic MOFs, which combine large surface area and easy recovery, show great potential in adsorbing and separating pollutants. This review summarizes recent research progress on adsorption and separation of ions, dyes, and other contaminants in aqueous environments using different types of MOFs (magnetic and non-magnetic) and their magnetic composites (Fe3O4@MOF). Factors influencing pollutant adsorption, as well as thermodynamic and kinetic effects, are discussed with detailed examples. Finally, the challenges and opportunities for further development of magnetic MOFs are discussed.