Customizing loose nanofiltration membranes on nanofiber scaffolds with surfactants: Towards efficient dye/salt selective separation

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 131624 - 131624

Published: Jan. 1, 2025

Language: Английский

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Covalent Organic Frameworks for Membrane Separation

Advanced Science, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 11, 2024

Membranes with switchable wettability, solvent resistance, and toughness have emerged as promising materials for separation applications. However, challenges like limited mechanical strength, poor chemical stability, structural defects during membrane fabrication hinder their widespread adoption. Covalent organic frameworks (COFs), crystalline constructed from molecules connected by covalent bonds, offer a solution due to high porosity, customizable properties. The ordered structures functionality provide COFs lightweight framework, large surface area, tunable pore sizes, which attracted increasing attention applications in separations. Recent research has extensively explored the preparation strategies of COF membranes various processes. This review uniquely delves into influence techniques, including interfacial polymerization, layer-by-layer assembly, situ growth, on thickness performance. It comprehensively explores design potential these methods, particular focus gas separation, oil/water nanofiltration. Furthermore, future opportunities, within this field, directions development are proposed.

Language: Английский

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Covalent organic framework composite membranes with skeleton charge for efficient desalination

Journal of Membrane Science, Journal Year: 2024, Volume and Issue: 701, P. 122700 - 122700

Published: March 28, 2024

Language: Английский

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Volatile Sieving Using Architecturally Designed Nanochannel Lamellar Membranes in Membrane Desalination

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 13, 2025

Thermally driven membrane desalination processes have garnered significant interest for their potential in the treatment of hypersaline wastewater. However, achieving high rejection rates volatiles while maintaining a water flux remains considerable challenge. Herein, we propose thermo-osmosis-evaporation (TOE) system that utilizes molecular intercalation-regulated graphene oxide (GO) as thermo-osmotic selective permeation layer, positioned on hydrophobic poly(vinylidene fluoride) fibrous serving thermo-evaporation layer. By carefully constructing architectural interlaminar nanochannels GO membranes via simultaneously confining small molecules to enlarge interlayer spacing and incorporating polymers within interlayers create dense network, resultant demonstrates rate 100% NaCl 97.41% volatile phenylamine, with permeance 63.80 L m-2 h-1 at temperature difference 40 °C, outperforming previously reported GO-based membranes. Simulation calculation results reveal polymer network between facilitates high-efficiency separation nonvolatile ions molecules, enlarged channels reduce vapor diffusion resistance. This study provides valuable insights design advanced serves inspiration continued development TOE complex wastewater treatment.

Language: Английский

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Insights into pore engineering of covalent organic framework membranes for small molecule separation

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: 509, P. 161210 - 161210

Published: March 4, 2025

Language: Английский

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Organic frameworks (MOFs, COFs, and HOFs) based membrane materials for CO2 gas-selective separation: A systematic review

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: unknown, P. 130195 - 130195

Published: Oct. 1, 2024

Language: Английский

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Engineered covalent organic frameworks (COFs) for adsorption-based metal separation technologies: A critical review

Advances in Colloid and Interface Science, Journal Year: 2025, Volume and Issue: unknown, P. 103507 - 103507

Published: April 1, 2025

Language: Английский

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Trace Cobalt, Nitrogen Co-Doped Graphene for High-Performance Membrane Capacitive Deionization

Published: Jan. 1, 2025

Porous graphene-based electrodes possess great potential in membrane capacitive deionization (MCDI) applications due to their high conductivity and specific capacitance. To further enhance desalination performance, a MCDI system utilizing nanostructured porous graphene doped with trace amounts of Co N atoms (CoNG) as the cathode, N-doped (NG) anode is proposed. The structure co-doping imparts CoNG numerous active reaction sites enhances its electrochemical stability. Besides, combination NG electrode lowers overall adsorption energy system. Under optimal conditions, performance 69.23 mg g-1 rate 2.307 min-1 have been achieved an consumption 0.36 Wh g-1. This study highlights materials lays foundation for improvements performance.

Language: Английский

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A pH-responsive covalent organic framework membrane based on flexible building blocks for superhigh-flux dye/salt separation

Desalination, Journal Year: 2025, Volume and Issue: unknown, P. 118783 - 118783

Published: March 1, 2025

Language: Английский

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Two-Dimensional Covalent Organic Framework Membranes for Molecular and Ion Separation

Industrial & Engineering Chemistry Research, Journal Year: 2025, Volume and Issue: unknown

Published: March 7, 2025

Language: Английский

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