A review on metal organic frameworks (MOFs) modified membrane for remediation of water pollution

Abstract

Porous metal-organic frameworks (MOFs) have received wide attention on the potential application to separation of pollutants from contaminated water to produce clear water. Recently, the report on MOFs modified membrane in pollution separation is very interesting. The main focus is that adding MOFs onto the surface of the membrane can significantly improve its separation performance and anti-fouling ability. This review took the opportunity to give readers a preliminary and detailing understanding of the basic knowledge of the MOFs modified membrane used in remediation of water pollution.

Electrodeposition of Ag/ZIF-8-Modified Membrane for Water Remediation

“…One of the challenges of using membranes for water treatment is bacterial biofilm formation . To evaluate the antimicrobial properties of ZIF-8 and Ag/ZIF-8-coated SSM, we tested their effect on bacterial growth.…”

“…Fe-containing MILs were studied due to their potential Fenton process for degrading organics in wastewater. Besides surface adsorbing and electrostatic interactions, ZIF-8 and their composites can generate hydroxyl radicals under UV conditions to degrade organic molecules through the AOP mechanism. , Other MOF composites, such as TiO 2 and Ag-incorporated MOFs, have been demonstrated for photocatalytic degradation of wastewater. − Besides bulk materials as adsorbents, MOF-modified membranes have also been explored for their potential in pollution separation in water treatment. , However, bacteria and extracellular polymeric substances generated by microorganisms in water can cause biological fouling, which decreases the filtration performance and causes the biodegradation of membranes over time. Therefore, there is a critical need for designing MOF-based membranes with antimicrobial properties for wastewater treatment.…”

“… 37 − 39 Besides bulk materials as adsorbents, MOF-modified membranes have also been explored for their potential in pollution separation in water treatment. 40 , 41 However, bacteria and extracellular polymeric substances generated by microorganisms in water can cause biological fouling, which decreases the filtration performance and causes the biodegradation of membranes over time. Therefore, there is a critical need for designing MOF-based membranes with antimicrobial properties for wastewater treatment.…”

Synthesis and characterization of ZIF-8-based PVDF mixed matrix membranes and application to treat pulp and paper industry wastewater using a membrane bioreactor

“…Furthermore, the relative 2θ values indicate extremely crystalline ZIF-8 particles, as confirmed by the strong intensity peaks of the XRD patterns. 4,23 The peaks at 18.4°a nd 26.7°represent the α PVDF phase and are part of the XRD patterns of the ZIF-8 embedded MMMs. 24 The peak at 22.6°is assigned to the β phase of PVDF.…”

“…When compared to other treatment techniques, the MBR system offers various advantages, including high efficiency, low operational cost, and lower energy consumption. [1][2][3][4] Paper is a product that is made by many mechanical, chemical, and physicochemical processes using a considerable quantity of freshwater in the pulp and paper industry. The pulp and paper industry's effluent has a significant influence on the environment.…”