Polyester Nanofiltration Membranes for Efficient Cations Separation

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(9)

Published: Oct. 31, 2023

Abstract Polyester nanofiltration membranes highlight beneficial chlorine resistance, but their loose structures and negative charge result in poor cations retention precluding advanced use separation. This work designs a new monomer (TET) containing “hydroxyl‐ammonium” entities that confer dense positive to polyester membranes. The TET undergoes efficient interfacial polymerization with the trimesoyl chloride (TMC) monomer, resultant TET‐TMC feature one of lowest molecular weight cut‐offs (389 Da) highest zeta potential (4 mv, pH: 7) among all MgCl 2 rejection membrane is 95.5%, significantly higher than state‐of‐the‐art (<50%). Li + /Mg 2+ separation performance on par cutting‐edge polyamide membranes, while additionally, stable against NaClO though readily degrade. Thus first for

Language: Английский

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New directions on membranes for removal and degradation of emerging pollutants in aqueous systems

Water Research, Journal Year: 2024, Volume and Issue: 251, P. 121111 - 121111

Published: Jan. 6, 2024

Language: Английский

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Effect of interfacial polymerization monomer design on the performance and structure of thin film composite nanofiltration and reverse osmosis membranes: A review

Separation and Purification Technology, Journal Year: 2023, Volume and Issue: 330, P. 125282 - 125282

Published: Oct. 4, 2023

Language: Английский

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Tempospatially Confined Catalytic Membranes for Advanced Water Remediation

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(37)

Published: Feb. 12, 2024

Abstract The application of homogeneous catalysts in water remediation is limited by their excessive chemical and energy input, weak regenerability, potential leaching. Heterogeneous catalytic membranes (CMs) offer a new approach to facilitate efficient, selective, continuous pollutant degradation. Thus, integrating filtration with heterogeneous advanced oxidation processes (AOPs) can promote thermodynamic kinetic mass transfers spatially confined intrapores diffusion‐reaction processes. Despite the remarkable advantages CMs, engineering practically restricted due fuzzy design criteria for specific applications. Herein, recent advances CMs are critically reviewed flow tempospatially proposed. Further, state‐of‐the‐art CM materials mechanisms reviewed, after which tempospatial confinement comprising nanoconfinement effect, interface transfer emphasized, thus clarifying roles construction performance optimization CMs. Additionally, fabrication methods based on pore sizes summarized an overview evaluations presented. Finally, future directions research treatment,

Language: Английский

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Roll-to-roll fabrication of large-area metal–organic framework-based membranes for high-performance aqueous separations

Nature Water, Journal Year: 2024, Volume and Issue: 2(2), P. 183 - 192

Published: Jan. 30, 2024

Language: Английский

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Green maltitol-based nanofiltration membranes featuring high permeance and excellent anti-fouling performance for dye desalination

Desalination, Journal Year: 2024, Volume and Issue: 586, P. 117851 - 117851

Published: June 17, 2024

Language: Английский

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Micropore engineering of polyamide loose nanofiltration membrane for efficient dye/salt separation

Journal of Membrane Science, Journal Year: 2024, Volume and Issue: 705, P. 122932 - 122932

Published: May 28, 2024

Language: Английский

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Ionic liquids tailored ultra-permeable antifouling nanofiltration membranes for water purification

Journal of Membrane Science, Journal Year: 2024, Volume and Issue: 696, P. 122536 - 122536

Published: Feb. 5, 2024

Language: Английский

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Lignin alkali regulated interfacial polymerization towards ultra-selective and highly permeable nanofiltration membrane

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: Jan. 3, 2025

Thin-film composite polyamide (TFC PA) membranes hold promise for energy-efficient liquid separation, but achieving high permeance and precise separation membrane via a facile approach that is compatible with present manufacturing line remains great challenge. Herein, we demonstrate the use of lignin alkali (LA) derived from waste paper pulp as an aqueous phase additive to regulate interfacial polymerization (IP) process performance nanofiltration (NF) membrane. Various characterizations molecular dynamics simulations revealed LA can promote diffusion partition monomer piperazine (PIP) molecules into organic their uniform dispersion on substrate, accelerating IP reaction promoting greater instabilities, thus endowing formation TFC NF ultrathin, highly cross-linked, crumpled PA layer. The optimal exhibited remarkable water 26.0 L m-2 h-1 bar-1 Cl-/SO42- selectivity 191.0, which superior state-of-the-art membranes. This study provides cost-effective scalable strategy fabricating ultra-selective permeable ion-ion small compounds removal. Achieving in thin-film challenging. Here, authors

Language: Английский

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Membranes based on Covalent Organic Frameworks through Green and Scalable Interfacial Polymerization using Ionic Liquids for Antibiotic Desalination

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 63(4)

Published: Nov. 30, 2023

Abstract Covalent organic framework (COF) membranes featuring uniform topological structures and devisable functions, show huge potential in water purification molecular separation. Nevertheless, the inability of COF to be produced on an industrial scale their nonenvironmentally friendly fabrication method are bottleneck preventing applications. Herein, we report a new green industrially adaptable scraping‐assisted interfacial polymerization (SAIP) technique fabricate scalable TpPa membranes. The process used non‐toxic low‐volatility ionic liquids (ILs) as phase instead conventional solvents for synthesis layer support membrane, which can simultaneously achieve purposes (i) improving greenness membrane‐forming (ii) fabricating robust membrane that function beyond This approach yields large‐area, continuous (19×25 cm 2 ) with thickness 78 nm within brief period minutes. resulting exhibited unprecedented combination high permeance (48.09 L m −2 h −1 bar antibiotic desalination efficiency (e.g., NaCl/adriamycin separation factor 41.8), is superior commercial benchmarking

Language: Английский

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