Sustainable electrospray polymerization fabrication of thin-film composite polyamide nanofiltration membranes for heavy metal removal

Ma, Zhongbao; Ren, Long‐Fei; Ying, Deng; Jia, Jinping; Shao, Jiahui

doi:10.1016/j.desal.2022.115952

Cited by 19 publications

(10 citation statements)

References 49 publications

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“…Furthermore, Figure 2A shows that the permeance displays a good linear relationship with reciprocal of solvent viscosity for MOF‐CH 3 @BDC membrane, that is, obeying Hagen–Poiseuille equation 48 . While for MOF‐CH 3 @CH 3 and MOF‐CH 3 @NH 2 membranes (Figure 2B,C), molecule transport deviates obviously from Hagen−Poiseuille law, implying that it is also affected by other factors expect for viscosity, for example, molecular diameter and solubility parameter 40 . In general, the permeance of polar solvents is higher than that of nonpolar solvents for MOF‐CH 3 @NH 2 membrane, while the condition is inverse for MOF‐CH 3 @CH 3 membrane.…”

Section: Resultsmentioning

confidence: 94%

“…It bears the advantages of tailoring membrane structure with controllable physicochemical properties and subtly controlling membrane thickness. 40,41 Primarily, Nylon substrates were smoothly adhered on the receiver roller. MOF-CH 3 nanosheet dispersion (0.1 g L À1 ) was injected into one syringe (A), and MOF-CH 3 , MOF-BDC or MOF-NH 2 nanosheet dispersion (0.1 g L À1 ) was injected into another syringe (B).…”

Section: Preparation Of Hierarchical Mof Lamellar Membranesmentioning

confidence: 99%

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Molecular dissolution behaviors on porous membrane surface using hierarchical metal–organic framework lamellar membrane

Chen

et al. 2022

AIChE Journal

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Lamellar membranes, especially assembled by microporous framework nanosheets, have excited interest for fast molecular permeation. However, the underlying molecular dissolution behaviors on membrane surface, especially at pore entrances, remain unclear. Here, hierarchical metal-organic framework (MOF) lamellar membranes with 7 nm-thick surface layer and 553 nm-thick support layer are prepared. Hydrophilic (-NH 2 ) or hydrophobic (-CH 3 ) groups are decorated at pore entrances on surface layer to manipulate wettability, while -CH 3 groups on support layer provide comparable, low-resistance paths. We demonstrate that molecular dissolution behaviors are determined by molecule-molecule and molecule-pore interactions, derived from intrinsic parameters of molecule and membrane. Importantly, two dissolution model equations are established: for hydrophobic membrane surface, dissolution activation energy (E S ) obeys E S = K m ln[(γ L -γ C )μd 2 ], while turns to E S =K a ln [(γ L -γ C )δ e μd 2 ] for hydrophilic one. Particularly, hydrophilic pore entrances exert strong interaction with polar molecules, thus compensating the energy consumed by molecule rearrangement, giving fast permeation (>270 L m À2 h À1 bar À1 ).

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Section: Resultsmentioning

confidence: 94%

Section: Preparation Of Hierarchical Mof Lamellar Membranesmentioning

confidence: 99%

Molecular dissolution behaviors on porous membrane surface using hierarchical metal–organic framework lamellar membrane

Chen

et al. 2022

AIChE Journal

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“…In addition to morphology, size can also be controlled [ 21 ]. Another use for electrospray is the formation of membranes in conjunction with nanofibers, a useful configuration for filtering technologies [ 22 , 23 ].…”

Section: The Electrohydrodynamic Methodsmentioning

confidence: 99%

Hybrid Systems of Nanofibers and Polymeric Nanoparticles for Biological Application and Delivery Systems

et al. 2023

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Nanomedicine is a new discipline resulting from the combination of nanotechnology and biomedicine. Nanomedicine has contributed to the development of new and improved treatments, diagnoses, and therapies. In this field, nanoparticles have notable importance due to their unique properties and characteristics, which are useful in different applications, including tissue engineering, biomarkers, and drug delivery systems. Electrospinning is a versatile technique used to produce fibrous mats. The high surface area of the electrospun mats makes them suitable for applications in fields using nanoparticles. Electrospun mats are used for tissue engineering, wound dressing, water-treatment filters, biosensors, nanocomposites, medical implants, protective clothing materials, cosmetics, and drug delivery systems. The combination of nanoparticles with nanofibers creates hybrid systems that acquire properties that differ from their components’ characteristics. By utilizing nanoparticles and nanofibers composed of dissimilar polymers, the two synergize to improve the overall performance of electrospinning mats and nanoparticles. This review summarizes the hybrid systems of polymeric nanoparticles and polymeric nanofibers, critically analyzing how the combination improves the properties of the materials and contributes to the reduction of some disadvantages found in nanometric devices and systems.

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“…Donnan exclusion is the most suitable mechanism for dense membranes in heavy metal removal. This is enhanced by the repulsion between membrane surfaces and charged ions . Several elements that impact the effectiveness and performance of membranes in removing heavy metals are membrane surface, hydrophobicity, functional groups, and pore size and their distribution.…”

Section: Physical Methodsmentioning

confidence: 99%

“…This is enhanced by the repulsion between membrane surfaces and charged ions. 91 Several elements that impact the effectiveness and performance of membranes in removing heavy metals are membrane surface, hydrophobicity, functional groups, and pore size and their distribution. For the recovery of heavy metals from wastewater, a variety of porous and thinfilm composite membrane methods are utilized.…”

Section: Membrane Filtrationmentioning

confidence: 99%

A Critical Review on the Sustainable Approaches for the Removal of Toxic Heavy Metals from Water Systems

Carolin

Kamalesh

Kumar³

et al. 2023

Ind. Eng. Chem. Res.

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Heavy metal pollution results in enormous environmental impacts and significant human health problems. Because of their extreme toxicity and lack of biodegradability, heavy metal ions in water are considered problematic. Although the removal of various heavy metal ions from wastewater has been widely investigated, heavy metal contamination still requires effective and suitable remediation. With special attention on heavy metal removal, this study reviews recent advances, breakthroughs, and potential applications of various physical, chemical, and biological methods. Each treatment method has specific mechanisms of interaction with metal ions, which are described in this review. The discussion in this review leads to the conclusion that adsorption has the best potential which leads to the sustainable remediation of heavy metals. In summary, the review provides a new perspective on heavy metal reduction and encourages the development of innovative strategies for heavy metal removal. The main current problems and prospects in this field are highlighted in this review.

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Sustainable electrospray polymerization fabrication of thin-film composite polyamide nanofiltration membranes for heavy metal removal

Cited by 19 publications

References 49 publications

Molecular dissolution behaviors on porous membrane surface using hierarchical metal–organic framework lamellar membrane

Molecular dissolution behaviors on porous membrane surface using hierarchical metal–organic framework lamellar membrane

Hybrid Systems of Nanofibers and Polymeric Nanoparticles for Biological Application and Delivery Systems

A Critical Review on the Sustainable Approaches for the Removal of Toxic Heavy Metals from Water Systems

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