Microporous polyarylate membrane with nitrogen-containing heterocycles to enhance separation performance for organic solvent nanofiltration

Ren, Dan; Li, Yu-han; Ren, Shuping; Liu, Tian-Yin; Wang, Xiaolin

doi:10.1016/j.memsci.2020.118295

Cited by 33 publications

(16 citation statements)

References 39 publications

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“…The nanofiltration performance of the o-2DZTC membrane was compared with that of other nanofiltration membranes reported in the literature (Fig. 4F) (29)(30)(31)(32)(33)(34)(35)(36)(37)(38)(39)(40)(41)(42)(43)(44)(45)(46)(47). The o-2DZTC membrane simultaneously exhibited very high methanol permeance and precise molecular separation with an MWCO of 344 g mol −1 , surpassing the upper bound of previously reported polymer-, metal organic framework-, and covalent organic framework-based membranes.…”

Section: Evaluation Of Membrane Performancesmentioning

confidence: 79%

Bottom-up synthesis of two-dimensional carbon with vertically aligned ordered micropores for ultrafast nanofiltration

et al. 2023

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Two-dimensional (2D) carbon materials perforated with uniform micropores are considered ideal building blocks to fabricate advanced membranes for molecular separation and energy storage devices with high rate capabilities. However, creating high-density uniform micropores in 2D carbon using conventional perforation methods remains a formidable challenge. Here, we report a zeolite-templated bottom-up synthesis of ordered microporous 2D carbon. Through rational analysis of 255 zeolite structures, we find that the IWV zeolite having large 2D microporous channels and aluminosilicate compositions can serve as an ideal template for carbon replication. The resulting carbon is made of an extremely thin polyaromatic backbone and contains well-defined vertically aligned micropores (0.69 nm in diameter). Its areal pore density (0.70 nm −2 ) is considerably greater than that of porous graphene (<0.05 nm −2 ) prepared using top-down perforation methods. The isoporous membrane fabricated by assembling the exfoliated 2D carbon nanosheets exhibits outstanding permeance and molecular sieving properties in organic solvent nanofiltration.

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Section: Evaluation Of Membrane Performancesmentioning

confidence: 79%

Bottom-up synthesis of two-dimensional carbon with vertically aligned ordered micropores for ultrafast nanofiltration

et al. 2023

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“…Comparison of the performance of the membrane in this work with other polymer-based membranes on MWCO–permeance plot (1, X-PBI; 2, TFC 0.025–0.25/0.75/20 ; 3, S4-N-BAPP-20; 4, PAR@mBHPF0.2%; 5, MPCM; 6, PA-PAN; 7, GQD1/TMC; 8, PA/cGO/cross-linked PI; 9, Noria + TPC; 10, m-XDA/TMC-2/0.1; 11, sPPSU-C; 12, ANF …”

Section: Results and Discussionmentioning

confidence: 99%

“…Concretely, PEI as the monomer of the aqueous phase was dissolved in water with the concentration of 8 wt %. mMS 38 3, S4-N-BAPP-20; 39 4, PAR@mBHPF0.2%; 40 5, MPCM; 41 6, PA-PAN; 42 7, GQD1/TMC; 43 8, PA/cGO/cross-linked PI; 44 9, Noria + TPC; 45 10, m-XDA/TMC-2/0.1; 46 11, sPPSU-C; 47 nanoparticles were also added in the aqueous phase and treated with ultrasound for 1 h. TMC as the monomer of the organic phase was dissolved in hexane with the concentration of 2 wt %. First, the PAN substrates were immersed in water for 30 min.…”

Section: Methodsmentioning

confidence: 99%

Simultaneous Increase of Solvent Flux and Rejection of Thin-Film Composite Membranes by Incorporation of Dopamine-Modified Mesoporous Silica

Tian

Shi

et al. 2021

ACS Omega

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Thin-film nanocomposite membranes have shown great promise in organic solvent nanofiltration. However, it is challenging to acquire high permeation flux without severe swelling, which might do harm to rejection and long-term stability. In this study, we introduced dopamine-modified mesoporous silica nanoparticles into the polyamide (PA) matrix via interfacial polymerization to fabricate a series of thin-film nanocomposite membranes. By using polyethyleneimine (PEI) as the aqueous monomer, the modified nanoparticles are designed to be cross-linked within the PA network, which allows the penetration of PEI into the mesopores, and therefore, the membranes show better resistance to solvent-induced swelling and pressure-induced densification. More importantly, the mesopores of nanoparticles provide additional fast channels for solvents, resulting in an unusual enhancement of solvent flux under reduced membrane swelling. Along with the permeation flux, the rejection performance of the nanocomposite membranes is simultaneously improved, thanks to the controlled swelling arising from the strong interfacial adhesion. Thin-film nanocomposite membranes with optimal filler concentration exhibit a high isopropanol permeance of 8.47 L m −2 h −1 bar −1 as well as a quite low-molecular-weight cutoff of 281 Da.

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“…A summary of data available in current literature is shown in Table 7 and Figure . [ 190,195–199 ] Jimenez‐Solomon et al (2016) prepared polyarylate TFCs with microporous building blocks utilizing interfacial polymerization. Although these ultrathin polyarylate nanofilms demonstrated high permeance in a wide range of organic solvents and high rejections for large organic solutes, they showed relatively moderate rejection for low M W solutes such as Chrysoidine G in methanol.…”

Section: Pim‐derived Membranes For Liquid Separations By Nanofiltration/romentioning

confidence: 99%

“…Similar results were found in several recent studies incorporating microporous building blocks during interfacial polymerization as shown in Table 7. [ 195,198,199 ] However, polyamide TFCs based on finely tuned triptycene‐acid chloride building blocks reacted with m ‐phenylenediamine (MPD) demonstrated equivalent methanol permeance to the polyarylate TFCs coupled with dramatically improved low M W solute rejection which was attributed to the preservation of submicropores and chemical stability of the polymer. [ 197 ]…”

Section: Pim‐derived Membranes For Liquid Separations By Nanofiltration/romentioning

confidence: 99%

Recent Progress on Polymers of Intrinsic Microporosity and Thermally Modified Analogue Materials for Membrane‐Based Fluid Separations

et al. 2021

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Solution‐processable amorphous glassy polymers of intrinsic microporosity (PIMs) are promising microporous organic materials for membrane‐based gas and liquid separations due to their high surface area and internal free volume, thermal and chemical stability, and excellent separation performance. This review provides an overview of the most recent developments in the design and transport properties of novel ladder PIM materials, polyimides of intrinsic microporosity (PIM–PIs), functionalized PIMs and PIM–PIs, PIM‐derived thermally rearranged (TR), and carbon molecular sieve (CMS) membrane materials as well as PIM‐based thin film composite membranes for a wide range of energy‐intensive gas and liquid separations. In less than two decades, PIMs have significantly lifted the performance upper bounds in H2/N2, H2/CH4, O2/N2, CO2/N2, and CO2/CH4 separations. However, PIMs are still limited by their insufficient gas‐pair selectivity to be considered as promising materials for challenging industrial separations such as olefin/paraffin separations. An optimum pore size distribution is required to further improve the selectivity of a PIM for a given application. Specific attention is given to the potential use of PIM‐based CMS membranes for energy‐intensive CO2/CH4, N2/CH4, C2H4/C2H6, and C3H6/C3H8 separations, and thin film composite membranes containing PIM motifs for liquid separations.

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Microporous polyarylate membrane with nitrogen-containing heterocycles to enhance separation performance for organic solvent nanofiltration

Cited by 33 publications

References 39 publications

Bottom-up synthesis of two-dimensional carbon with vertically aligned ordered micropores for ultrafast nanofiltration

Bottom-up synthesis of two-dimensional carbon with vertically aligned ordered micropores for ultrafast nanofiltration

Simultaneous Increase of Solvent Flux and Rejection of Thin-Film Composite Membranes by Incorporation of Dopamine-Modified Mesoporous Silica

Recent Progress on Polymers of Intrinsic Microporosity and Thermally Modified Analogue Materials for Membrane‐Based Fluid Separations

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