A new concept of MOF-based PMM by modification of conventional dense film casting method: Significant impact on the performance of FO process

Arjmandi, Mehrzad; Peyravi, Majid; Chenar, Mahdi Pourafshari; Jahanshahi, Mohsen

doi:10.1016/j.memsci.2019.02.020

Cited by 42 publications

(24 citation statements)

References 85 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To the best of our knowledge, mostly, all reported water contact angles (CA) for MOFs are measured on MOF-polymer composites. Especially, MOF@polymer mixed-matrix membranes with smooth cast polymer surfaces have been reported so far. − …”

Section: Resultsmentioning

confidence: 99%

Solid-Solution Mixed-Linker Synthesis of Isoreticular Al-Based MOFs for an Easy Hydrophilicity Tuning in Water-Sorption Heat Transformations

et al. 2019

View full text Add to dashboard Cite

The solid-solution mixed-linker approach, where a linker is partially replaced by a similar one under retention of the isoreticular metal–organic framework (MOF) structure, offers an easy and inexpensive way to fine-tune MOF properties to design tailored compounds. A total of 10 aluminum mixed-linker MOFs, [Al(OH)(X) a (Y)1–a ] (X = IPA, isophthalate; Y = FDC, 2,5-furandicarboxylate) spanning between the isostructural MOFs CAU-10-H (a = 1) and MIL-160 (a = 0), were synthesized by employing different ratios of the aforementioned linkers. CAU-10-H and MIL-160 have been reported as highly promising materials for cycling water sorption for heat transformation applications. A detailed characterization with a focus on the changes in the sorption properties for water vapor showed that the hydrophilicity is readily and easily tuned through the mixed-linker approach between the limits of MIL-160 and CAU-10-H. An increasing fraction of IPA shifts the steep increase in the S-shaped water adsorption isotherm in small steps from p/p 0 = ∼0.05 for MIL-160 to p/p 0 = ∼0.18 for CAU-10-H. Higher coefficient of performance (COPH) values for the mixed-linker materials over MIL-160 illustrate the well-balanced hydrophobicity/hydrophilicity of the former under the exemplary calculation conditions.

show abstract

Section: Resultsmentioning

confidence: 99%

Solid-Solution Mixed-Linker Synthesis of Isoreticular Al-Based MOFs for an Easy Hydrophilicity Tuning in Water-Sorption Heat Transformations

et al. 2019

View full text Add to dashboard Cite

show abstract

“…With the proportion of MOF-199 increasing from 0 to 5%, more surface pores were located on the top surface of the composite membrane, with the pore size increasing from 75 nm (M3) to 125 nm (M5) (Figure 2b,b 0 ,c,c 0 ,d,d 0 ). It had been demonstrated previously that the hydrophilic MOF, migrated toward the membrane surface during phase inversion, [34] and the water unstable MOF (Fe-MOF, Al-MOF, Cu-MOF, etc.,) could be used as a pore former when porous matrix membranes (PMM) were fabricated. [2] Therefore, MOF-199 nanomaterials, which possessed hydrophilic nature and water instability, acted as the pore former during the phase inversion, resulting in the porous membrane surface.…”

Section: Membrane Morphologymentioning

confidence: 96%

Alteration of the morphology of polyvinylidene fluoride membrane by incorporatingMOF‐199 nanomaterials for improving water permeation with antifouling and antibacterial property

Wang

et al. 2020

J Chinese Chemical Soc

View full text Add to dashboard Cite

MOF-199@PVDF composite membranes are prepared by blending with different amounts of ultrasonic synthesized MOF-199 nanomaterials for improving the pure water flux (PWF) and achieving better antifouling and antibacterial performance. The membrane morphology, elemental composition, and surface properties are analyzed by various means of characterizations, including scanning electron microscopy, energy-dispersive X-ray spectroscopy, and water contact angle measurements. The performance of the modified membranes is also determined from the perspective of the PWF, bovine serum albumin rejection, as well as antifouling and antibacterial properties. Due to the variation in the viscosity of dope solution, the composite membranes possess remarkably different morphology, and the M5 membrane, which exhibited a sponge-like structure, the largest surface pore size, and the highest porosity, shows the highest PWF, reaching up to 185.05 L/m 2 h. Moreover, with the incorporation of MOF-199 nanocrystals, the antifouling property, together with the antibacterial property, toward both gram-negative bacteria and gram-positive bacteria, based on M5 and M7 membranes, increases dramatically compared with the pristine polyvinylidene fluoride membrane. In addition, the long-term permeation performance and copper leakage of the membrane are investigated. As a result, the composite membrane, M5, shows great potential in real water treatment.

show abstract

“…[165][166][167][168] MOF-based membranes have been widely used to effectively remove pollutants from wastewater. 110,[169][170][171][172][173][174][175][176][177][178][179][180] Adsorptive removal of dye with the membrane is highly influenced by the electrostatic interaction between the membrane and dye molecules. 181 Other interactions like hydrogen bonding, p-p stacking, and acid-base interactions are rarely reported for membrane-based MOF composite dye removal materials (Fig.…”

Section: Filtration Through Mof-based Membranesmentioning

confidence: 99%

Dye contaminated wastewater treatment through metal–organic framework (MOF) based materials

2022

View full text Add to dashboard Cite

show abstract

A new concept of MOF-based PMM by modification of conventional dense film casting method: Significant impact on the performance of FO process

Cited by 42 publications

References 85 publications

Solid-Solution Mixed-Linker Synthesis of Isoreticular Al-Based MOFs for an Easy Hydrophilicity Tuning in Water-Sorption Heat Transformations

Solid-Solution Mixed-Linker Synthesis of Isoreticular Al-Based MOFs for an Easy Hydrophilicity Tuning in Water-Sorption Heat Transformations

Alteration of the morphology of polyvinylidene fluoride membrane by incorporatingMOF‐199 nanomaterials for improving water permeation with antifouling and antibacterial property

Dye contaminated wastewater treatment through metal–organic framework (MOF) based materials

Contact Info

Product

Resources

About