Electrospinner: Review on the application of metal organic framework electrospun nanofibers in decolorization of textile wastewater

Research background

Textile wastewater pollution: The textile industry is the main source of harmful organic pollutants in water bodies. Every year, a large amount of dyes are discharged into the environment with wastewater, posing a threat to the environment and human health.

Limitations of existing treatment methods: Oxidation and biodegradation methods have disadvantages, such as the use of strong oxidants, the production of by-products, high cost, and low efficiency.

Advantages of adsorption: The adsorption method is simple, cost-effective, and does not produce toxic by-products. It is an effective method for treating textile wastewater.

Characteristics of MOF: MOF is outstanding among adsorption materials due to its large adsorption capacity, high efficiency, and recyclability.

Abstract

Dye discharge problem: The amount of dye discharged in textile industrial wastewater has increased year by year, posing a threat to the environment and human health.

Application of MOF: MOF is widely used in dye removal due to its high specific surface area and pore size adjustability.

MOF/ENF composites: MOF is combined with electrospun nanofibers (ENF) to improve adsorption performance and industrial application potential.

Analysis

Technical Potential: MOF/ENF composites show great potential in textile wastewater treatment due to their high adsorption capacity and tunable porosity.

Importance of Synthesis and Surface Modification: The synthesis strategy of MOF and the surface modification of ENF are crucial to the performance of the composites, affecting their adsorption efficiency and stability.

Adsorption Mechanism: Understanding the intermolecular interactions between MOF and dyes is essential for optimizing the adsorption process and improving the adsorption efficiency.

Application Challenges: MOF/ENF composites face challenges in practical applications, including cost-effectiveness, water stability, permeability, and adjustment of mechanical resistance.

Future Research Directions: Further research is needed on the synthesis methods, surface modification techniques, and application effects of MOF/ENF composites in textile wastewater treatment to achieve commercial and industrial-scale applications.

Conclusion

Adsorption Efficiency of MOFs: MOFs are one of the most effective technologies for dye wastewater purification, and their synthesis strategy and porosity development are crucial to the adsorption efficiency.

Adsorption Mechanism: The adsorption of dyes on the MOF surface is mainly due to intermolecular interactions, such as electronic interactions, π-π stacking, and hydrogen bonding.

Synthesis of MOF/ENF composites: The choice of synthesis method determines the properties of the final composite, including the embedding of MOF and in-situ growth on the fiber surface.

Surface modification: Modification of the ENF surface, such as oxidation treatment and integration of functional groups, promotes the stability and adsorption properties of MOF/ENF composites.

Application prospects of MOF/ENF: The application prospects of MOF/ENF membranes in the textile industry are based on their cost-effectiveness, reusability and easy operation.