Imine‐Linked 3D Covalent Organic Framework Membrane Featuring Highly Charged Sub‐1 nm Channels for Exceptional Lithium‐Ion Sieving

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 9, 2025

Abstract Coupling ion exclusion and interaction screening within sub‐nanoconfinement channels in novel porous material membranes hold great potential to realize highly efficient sieving, particularly for high‐performance lithium‐ion extraction. Diverse kinds of advanced have been previously reported this goal but with moderate performance complex operations gained. Herein, these issues are circumvented by preparing the consecutive intact imine‐linked three‐dimensional covalent organic framework (i.e., COF‐300) via a simple solvothermal approach employing intrinsically interconnected sub‐1 nm one‐dimensional exceptional sieving. The synthesized charged angstrom scale ≈0.78 achieve an excellent Li + permeance (0.123 mol m −2 h −1 ) ultrahigh /Mg 2+ 36 binary system. experimental measurement theoretical calculation reveal that channel size right exactly between Mg enables restricted penetration. Meanwhile, affinity imine groups further strengthens fast permeability severely suppresses passage. In particular, framwork also remarkable separation during long‐term operation test without sacrificing trade‐off, demonstrating chemistry stability mechanical integrity under high‐salinity aqueous environment.

Язык: Английский

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Advances in Nanofiltration Membrane Pore Size Adjustment Techniques: A Review

Environmental Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 1, 2025

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Microporous Polyacylhydrazone Membranes with 3D Interconnected Nanochannels for Accurate Molecular Sieving

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 30, 2025

Abstract Microporous membranes featuring 3D nanochannels present a compelling avenue for energy‐efficient liquid separations, attributable to their tunable interconnected through‐pore structures. However, the rational design of 3D‐nanochannel that simultaneously achieve high permeance and selectivity remains challenge, arising from scarcity appropriate molecular building blocks reliance on empirical synthetic methods. Herein, an innovative polyacylhydrazone (PAH) membrane with unique pore‐interconnected structures is constructed porous hydrogel using contorted tetrahedral aldehydes (TFS) monomers via in situ interface‐confined strategy. Manipulation side alkyl chain lengths within terephthalohydrazide (TPH) derivates enabled enhancement microporosity pore environment PAH nanofilms. Molecular dynamics simulations revealed TPH EO linkers higher reactivity moderate steric hindrance facilitate superior interconnectivity sharpened size distributions. The resulting achieved exceptional methanol permeances 10.1 L m −2 h −1 bar small weight cut‐offs 310 Da, outperforming state‐of‐the‐art polyamide membranes. This further translated into outstanding capability fractionation active pharmaceutical ingredients organic solvent systems. work demonstrates efficacy developing high‐microporosity tailored nanochannels, underscoring potential microporous accurate separations.

Язык: Английский

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Green and large-scale production of covalent organic framework nanofiltration membranes

Communications Materials, Год журнала: 2025, Номер 6(1)

Опубликована: Апрель 1, 2025

Язык: Английский

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Enabling highly selective acid recovery by 3D covalent organic frameworks membrane with sub-nanochannels

Journal of Membrane Science, Год журнала: 2025, Номер 731, С. 124242 - 124242

Опубликована: Май 20, 2025

Язык: Английский

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Advanced Strategies of Covalent Organic Framework Nanomedicines in Targeting and Overcoming Biological Barriers

Asian Journal of Pharmaceutical Sciences, Год журнала: 2025, Номер unknown, С. 101066 - 101066

Опубликована: Май 1, 2025

Язык: Английский

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Advanced Microporous Framework Membranes for Sustainable Separation

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 24, 2025

Abstract Advancements in membrane‐based separation hinge on the design of materials that transcend conventional limitations. Microporous materials, including metal–organic frameworks (MOFs), covalent–organic (COFs), macrocycles, and porous organic cages (POCs) offer unprecedented control over pore architecture, chemical functionality, transport properties, making them promising candidates for next‐generation membrane technologies. The well‐defined tunable micropores provide a pathway to directly address permeability‐selectivity trade‐off inherent polymer membranes. Here, this review explores latest advancements these four representative microporous membranes, emphasizing their breakthroughs hydrocarbon separation, liquid‐phase molecular sieving, ion‐selective transport, particularly focusing structure‐performance relationships. While tailored structures enable exceptional performance, practical adoption requires overcoming hurdles scalability, durability, compatibility with industrial processes. By offering insights into structure optimization innovative strategies, provides roadmap advancing membranes from laboratory innovation real‐world implementation, ultimately supporting global sustainability goals through energy‐efficient

Язык: Английский

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Guanidinium-based 3D cationic covalent organic frameworks with different amino modifications for the efficient removal of hexafluorobisphenol A

Journal of environmental chemical engineering, Год журнала: 2024, Номер unknown, С. 114601 - 114601

Опубликована: Окт. 1, 2024

Язык: Английский

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