Poly(piperazine trimesamide) thin film nanocomposite membrane formation based on MIL-101: Filler aggregation and interfacial polymerization dynamics

Butler, Ethan L.; Petit, Camille; Livingston, Andrew G.

doi:10.1016/j.memsci.2019.117482

Cited by 35 publications

(14 citation statements)

References 70 publications

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“…The synthesis process of the TFN_out membranes is similar to that applied to the flat membranes carried out elsewhere: IP in a static bath. This method led to a higher amount of MOF NPs in the PA films since they end up embedded in the polymer by bare precipitation (even relatively big agglomerates as it was reported in previous researches ,, ). However, several authors have widely evidenced that the substrate used for the IP has a powerful effect on the thin film characteristics.…”

Section: Resultsmentioning

confidence: 79%

Polyamide-MIL-101(Cr) Thin Films Synthesized on Either the Outer or Inner Surfaces of a Polysulfone Hollow Fiber for Water Nanofiltration

Echaide‐Górriz

Aysa-Martínez

Navarro

et al. 2021

ACS Appl. Mater. Interfaces

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High-performance thin film nanocomposite (TFN) hollow fiber (HF) membranes, with MIL-101(Cr) MOF nanoparticles (52 ± 13 nm) embedded, have been synthesized with the polyamide layer formed either on the outer or inner surface of a polysulfone HF (250 and 380 μm ID and OD, respectively). The TFN_out membrane was developed using the conventional interfacial polymerization method, typically applied to obtain TFN flat membranes (MOF particles added to the thin layer by deposition). This membrane gave a water permeance value of 1.0 ± 0.7 L·m–2·h–1·bar–1 and a rejection of 90.9 ± 1.2% of acridine orange (AO, 265 Da). In contrast, the TFN_in membrane was synthesized by microfluidic means and gave a significantly higher water permeance of 2.8 ± 0.2 L·m–2·h–1·bar–1 and a slightly lower rejection of 87.4 ± 2.5% of the same solute. This remarkable increase of flux obtained with small solute AO suggests that the HF membranes developed in this work would exhibit good performance with other typical solutes with higher molecular weight than AO. The differences between the performances of both TFN_in and TFN_out membranes lay on the distinct superficial physicochemical properties of the support, the synthesis method, and the different concentrations of MOF present in the polyamide films of both membranes. The TFN_in is more desirable due to its potential advantages, and more effortless scalability due to the microfluidic continuous synthesis. In addition, the TFN_in membrane needs much fewer quantities of reactants to be synthesized than the TFN_out or the flat membrane version.

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Section: Resultsmentioning

confidence: 79%

Polyamide-MIL-101(Cr) Thin Films Synthesized on Either the Outer or Inner Surfaces of a Polysulfone Hollow Fiber for Water Nanofiltration

Echaide‐Górriz

Aysa-Martínez

Navarro

et al. 2021

ACS Appl. Mater. Interfaces

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“…Several water-stable MOFs such as ZIF-8, ,,,,− ZIF-11, , ZIF-67, ZIF-93, MIL-53(Al), , MIL-68(Al), MIL-101(Cr), ,,− MIL-125, CuBDC, CuBTTri, HKUST-1 (or Cu-BTC), , UiO-66, ,− Ag-MOF, Ag-BTC, their functionalized forms, ,,,,− and combinations with other MOFs and inorganic nanomaterials , have been studied for functionalization of TFN membranes for applications such as water purification, wastewater treatment, and organic solvent nanofiltration. The common results of the inclusion of MOFs in the selective layer of TFNs were improved water fluxes/permeances without losing separation efficiency.…”

Section: Fabrication Of Mof-functionalized Membranesmentioning

confidence: 99%

An Evolving Insight into Metal Organic Framework-Functionalized Membranes for Water and Wastewater Treatment and Resource Recovery

Chen

Dong

et al. 2021

Ind. Eng. Chem. Res.

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Metal organic frameworks (MOFs) represent one of the largest classes of porous crystalline materials. MOFs have been increasingly applied as functionalizing agents for membranes because of their porosity, high surface area, small particle size, aspect ratio control, tuneability, compatibility with a polymeric network, and exuberance of diverse functional groups. In this comprehensive review paper, we discuss achievements, opportunities, and challenges related to the functionalization of different types of membranes using MOFs for water and wastewater treatment and desalination. The current synthesis and fabrication approaches of MOF-functionalized membranes were identified and critically reviewed. The effects of MOFs on membrane performance, including permeation, selectivity, and antifouling, were discussed. Also, the application of MOF-functionalized membranes in aqueous environments for conventional applications such as heavy metal removal and emerging applications such as resource recovery was enunciated. Finally, recommendations and future directions were provided for further improvement in the field of MOF-functionalized membranes for water treatment and reuse.

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“…While the prevalence of different permeation pathways in MMMs is still a subject of investigation, there is general consensus in the literature that filler aggregation results in compromised membrane performance due to the lower selectivity regions introduced by the aggregates. 21 Several strategies have been attempted to overcome undesired aggregation, such as the crosslinking of MOFs, 22 their hydrophobic modification, 23,24 functionalization of the polymer for better interfacial adhesion, 25,26 pre-deposition of MOFs in the thin-film composite sublayer, 27,28 and in situ growth of MOFs in the pores or on the surface of membranes. [29][30][31] Fig.…”

Section: Introductionmentioning

confidence: 99%

Bridging the interfacial gap in mixed-matrix membranes by nature-inspired design: precise molecular sieving with polymer-grafted metal–organic frameworks

et al. 2021

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Poly(piperazine trimesamide) thin film nanocomposite membrane formation based on MIL-101: Filler aggregation and interfacial polymerization dynamics

Cited by 35 publications

References 70 publications

Polyamide-MIL-101(Cr) Thin Films Synthesized on Either the Outer or Inner Surfaces of a Polysulfone Hollow Fiber for Water Nanofiltration

Polyamide-MIL-101(Cr) Thin Films Synthesized on Either the Outer or Inner Surfaces of a Polysulfone Hollow Fiber for Water Nanofiltration

An Evolving Insight into Metal Organic Framework-Functionalized Membranes for Water and Wastewater Treatment and Resource Recovery

Bridging the interfacial gap in mixed-matrix membranes by nature-inspired design: precise molecular sieving with polymer-grafted metal–organic frameworks

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