Development of highly-efficient ZIF-8@PDMS/PVDF nanofibrous composite membrane for phenol removal in aqueous-aqueous membrane extractive process

Jin, Mengyi; Lin, Yuqing; Liao, Yuan; Tan, Choon‐Hong; Wang, Rong

doi:10.1016/j.memsci.2018.09.057

Cited by 55 publications

(36 citation statements)

References 62 publications

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“…The activated carbon was modified because of its disordered pore size distribution, different specific surface area and poor adsorption specificity, which will cause high cost and secondary pollution. 9,10 Among these alternative, membrane separation technology as a green clean production process has been identified to be one of the most promising candidate to wastewater treatment.…”

Section: Introductionmentioning

confidence: 99%

High performance polyvinylidene fluoride (PVDF) mixed matrix membrane (MMM) doped by various zeolite imidazolate frameworks

Liu

Chen

Mao

et al. 2020

High Performance Polymers

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Zeolitic imidazolate framework (ZIF-8) in three particle sizes (40, 70 and 100 nm) was prepared through both solvothermal and hydrothermal methods and employed to decorate polyvinylidene fluoride (PVDF). The finger-like macro-voids, sponge-like poly-porous morphology and surface roughness of prepared membranes were characterized by SEM and AFM microscopy. The FTIR spectrum and XPS analysis bear out the chemical component. ZIF-8 has the characteristics of higher porosity and appropriate pore size, which is a condition for improving the permeability and pollution resistance of the modified membrane. Results indicated that different ZIF-8s have different enhancement effects on PVDF MMM. 100 nm ZIF-8 membrane possessed pure water flux (PWF) of 350 L m−2h−1, which was 10 times more than the bare membrane (30 L m−2h−1), and OVA flux recovery ration (FRR%) is 98%. 40 nm ZIF-8 membrane owned BSA FRR% of 98.4%. The 70 nm ZIF-8 showed the best mechanical properties. The dynamic contact angles of UP-Z70 ranged from 104.5° to 62.5° within 180 s. Furthermore, pore size distribution, molecular weight cut-off (MWCO) and porosity were also researched to evaluate the MMM. The dislodge of Reactive Black KN-B, Reactive Red 3BS and Reactive Brilliant Blue KN-R dyes by MMM were studied under different dye concentrations and transmembrane pressures. The membrane can provide selective separation methods for dyes and Reactive Brilliant Blue KN-R up to 99%. Overall, the permeability, hydrophilicy, anti-fouling performance and wastewater treatment of modified membranes were regulated by the ZIF-8 in a steerable blending reaction modification process.

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Section: Introductionmentioning

confidence: 99%

High performance polyvinylidene fluoride (PVDF) mixed matrix membrane (MMM) doped by various zeolite imidazolate frameworks

Liu

Chen

Mao

et al. 2020

High Performance Polymers

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“…One of the other challenges faced in the fabrication of MMMs is colloidal stability. To ensure better colloidal stability, a narrow particle size distribution as well as even dispersion of nanoparticles, Jin et al [32] synthesised MMM using a drying free process. By avoiding the drying process, uniform and defect-free MMMs could be prepared as during the drying process, the Zn-imidazole groups on the surface typically reacted with each other and formed strong covalent Zn-Imidazole-Zn bonds, due to which the ZIF-8 nanofillers tend to agglomerate, which are very difficult to separate even upon subsequent re-dispersion.…”

Section: Challenges In the Fabrication Of Mmmsmentioning

confidence: 99%

“…The factors affecting MMM performance were found to be ZIF loading [32,48], operating temperature [5,58], feed concentration [5], hours of operation [51,58], synthesis time [51] and filler particle size [41].…”

Section: Factors Affecting Pervaporation Performance Of Zif-pdms Membranesmentioning

confidence: 99%

A Review on Mixed Matrix Membranes for Solvent Dehydration and Recovery Process

2021

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Solvent separation and dehydration are important operations for industries and laboratories. Processes such as distillation and extraction are not always effective and are energy-consuming. An alternate approach is offered by pervaporation, based on the solution-diffusion transport mechanism. Polymer-based membranes such as those made of Polydimethylsiloxane (PDMS) have offered good pervaporation performance. Attempts have been made to improve their performance by incorporating inorganic fillers into the PDMS matrix, in which metal-organic frameworks (MOFs) have proven to be the most efficient. Among the MOFs, Zeolitic imidazolate framework (ZIF) based membranes have shown an excellent performance, with high values for flux and separation factors. Various studies have been conducted, employing ZIF-PDMS membranes for pervaporation separation of mixtures such as aqueous-alcoholic solutions. This paper presents an extensive review of the pervaporation performance of ZIF-based mixed matrix membranes (MMMs), novel synthesis methods, filler modifications, factors affecting membrane performance as well as studies based on polymers other than PDMS for the membrane matrix. Some suggestions for future studies have also been provided, such as the use of biopolymers and self-healing membranes.

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“…Jin et al [140] took polyvinylidene fluoride (PVDF) nanofibrous substrate as supporter to form a high efficient MMM by embedding ZIF-8 into polydimethylsiloxane (PDMS) for phenol removal in aqueous phase membrane extraction process and it showed extraordinary high overall mass-transfer coefficient, which was much better than pristine membrane in the membrane extraction process and the high performance was kept after over 360 h without loss of salt rejection. Li et al [141] incorporated hydrophilic MOF-801 crystals into chitosan (CS) matrix to fabricate MOF-801/CS MMMs for pervaporation dehydration of ethanol.…”

Section: Aqueous Organic Matter Separationmentioning

confidence: 99%

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

Qian

Zhu

2020

Environmental Engineering Research

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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.

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Development of highly-efficient ZIF-8@PDMS/PVDF nanofibrous composite membrane for phenol removal in aqueous-aqueous membrane extractive process

Cited by 55 publications

References 62 publications

High performance polyvinylidene fluoride (PVDF) mixed matrix membrane (MMM) doped by various zeolite imidazolate frameworks

High performance polyvinylidene fluoride (PVDF) mixed matrix membrane (MMM) doped by various zeolite imidazolate frameworks

A Review on Mixed Matrix Membranes for Solvent Dehydration and Recovery Process

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

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