Environmental applications and performance engineering of COF membranes prepared by interfacial polymerization

Area of Science:

• Materials Science
• Chemical Engineering
• Environmental Science

Background:

• Growing demand for efficient, low-energy separation technologies.
• Covalent Organic Framework (COF) membranes show promise due to ordered pores and high porosity.
• Interfacial polymerization offers a cost-effective and continuous method for COF membrane fabrication.

Purpose of the Study:

• To comprehensively review interfacial polymerization methods for COF membrane preparation.
• To discuss applications and performance optimization of COF membranes in environmental fields.
• To identify future research directions for COF membrane technology.

Main Methods:

• Detailed review of interfacial polymerization via liquid-liquid, vapor-liquid, solid-liquid, and vapor-solid interfaces.
• Analysis of advantages and disadvantages of each interfacial polymerization method.
• Summary of performance optimization strategies for COF membranes in various separation applications.

Main Results:

• Interfacial polymerization methods enable the preparation of COF membranes with tunable properties.
• Optimized COF membranes demonstrate high performance in organic pollutant removal, desalination, dye separation, and gas separation.
• The review highlights the potential of COF membranes for advanced molecular sieving and ion-selective separations.

Conclusions:

• Interfacial polymerization is a key technique for developing advanced COF membranes for environmental applications.
• Further research is needed to improve COF membrane crystallinity, processability, mechanical strength, and stability.
• Developing multifunctional COF membranes is crucial for their industrial application and sustainable development.