Metal‐Organic Frameworks and Electrospinning: A Happy Marriage for Wastewater Treatment

Abstract

Metal-organic frameworks (MOFs), an emerging class of porous organic-inorganic hybrid materials, have shown great potential for water and wastewater treatment applications. However, pure MOF powders have limited practical applications in water treatment due to their insolubility, poor processability, brittleness, safety hazard from dust formation, and difficult separation from aqueous solutions. Thus, exploring potential MOFs composites with improved separation performance is of great importance. The marriage of MOFs with electrospun nanofiber with forethought into the final product's morphology, structure, and chemistry has opened up new opportunities for efficient wastewater treatment. The present review exhaustively summarizes the strategies to integrate MOFs into nanofibers via electrospinning to remove various pollutants (i.e., organic dyes, heavy metal ions, pharmaceuticals, personal care products, oily compounds, organic solvents, etc.) via adsorption, photodegradation, and membrane filtration. Besides, the most recent advances of electrospun MOF nanofibers for wastewater treatment and their current challenges and future outlook are delineated.

Metal–Organic Framework-Based Materials for Wastewater Treatment: Superior Adsorbent Materials for the Removal of Hazardous Pollutants

“…A review in this regard is provided by Ahmadijokani et al, where they explained the electrospinning synthesis route to synthesize MOF composites and hence their applications toward wastewater management. 40 Investigations on the durability of MOFs have permitted us to explain the impact of some aspects and judiciously prepare sturdy framework networks. The somewhat labile coordination binds, which sustain the framework systems, are considered liable for the little resilience of MOFs.…”

“…The strength of MOFs may be influenced by numerous aspects, such as the working atmosphere, metal ions, organic ligands, metal–ligand organization geometry, hydrophobicity of the aperture texture, etc. , Also, synthesizing MOFs-based composites could help to improve the strength and performance toward practical applications. A review in this regard is provided by Ahmadijokani et al, where they explained the electrospinning synthesis route to synthesize MOF composites and hence their applications toward wastewater management . Investigations on the durability of MOFs have permitted us to explain the impact of some aspects and judiciously prepare sturdy framework networks.…”

In Situ Electrospun Porous MIL-88A/PAN Nanofibrous Membranes for Efficient Removal of Organic Dyes

“…Metal–organic frameworks (MOFs), owing to their diverse structure, high surface area, and tunable pore size, have been widely used in gas storage and separation applications and organic molecules adsorbents [ 20 , 21 , 22 , 23 , 24 , 25 , 26 ]. In particular, MOFs with accurate chemical design have been successfully used to adsorb, separate, and remove organic ionic dyes [ 24 , 27 ].…”

Electrospinning Mo-Doped Carbon Nanofibers as an Anode to Simultaneously Boost Bioelectrocatalysis and Extracellular Electron Transfer in Microbial Fuel Cells

“…Obtained fibers with electrospinning have the advantages of a small diameter and a large specific surface area [ 10 ]. After stabilization and carbonization, carbon nanofibers are obtained, which are widely used in many fields [ 11 , 12 , 13 ]. Therefore, many researchers are studying the use of electrospinning technology to enhance the performance of MFCs, and the outcomes show that electrospinning has a broad application prospect in the preparation of efficient microbial fuel cell electrodes [ 8 , 9 , 14 ].…”