Enhancing ion selectivity by tuning solvation abilities of covalent-organic-framework membranes DOI

Qing-Wei Meng,

Xincheng Zhu,

Weipeng Xian

et al.

Proceedings of the National Academy of Sciences, Journal Year: 2024, Volume and Issue: 121(8)

Published: Feb. 13, 2024

Understanding the molecular-level mechanisms involved in transmembrane ion selectivity is essential for optimizing membrane separation performance. In this study, we reveal our observations regarding behavior of Li + and Mg 2+ ions as a response to changing pore solvation abilities covalent-organic-framework (COF) membranes. These were manipulated by adjusting lengths oligoether segments attached channels. Through comparative experiments, able unravel relationships between ability various transport properties, such partitioning, conduction, selectivity. We also emphasize significance competition with solvating modulating found that increasing length chain facilitated transport; however, it was COF chains containing two ethylene oxide units exhibited most pronounced discrepancy energy barrier , resulting highest factor among all evaluated Remarkably, under electro-driven binary-salt conditions, specific achieved an exceptional /Mg up 1352, making one effective membranes available separation. The insights gained from study significantly contribute advancing understanding selective within confined nanospaces provide valuable design principles developing highly

Language: Английский

Solid-solvent processing of ultrathin, highly loaded mixed-matrix membrane for gas separation DOI
Guining Chen, Cailing Chen, Yanan Guo

et al.

Science, Journal Year: 2023, Volume and Issue: 381(6664), P. 1350 - 1356

Published: Sept. 21, 2023

Mixed-matrix membranes (MMMs) that combine processable polymer with more permeable and selective filler have potential for molecular separation, but it remains difficult to control their interfacial compatibility achieve ultrathin layers during processing, particularly at high loading. We present a solid-solvent processing strategy fabricate an MMM (thickness less than 100 nanometers) loading up 80 volume %. used as solid solvent dissolve metal salts form precursor layer, which immobilizes the salt regulates its conversion metal-organic framework (MOF) provides adhesion MOF in matrix. The resultant membrane exhibits fast gas-sieving properties, hydrogen permeance and/or hydrogen-carbon dioxide selectivity one two orders of magnitude higher state-of-the-art membranes.

Language: Английский

Citations

156
Eliminating lattice defects in metal–organic framework molecular-sieving membranes DOI
Guozhen Liu, Yanan Guo, Cailing Chen

et al.

Nature Materials, Journal Year: 2023, Volume and Issue: 22(6), P. 769 - 776

Published: May 11, 2023

Language: Английский

Citations

128
Zeolites and metal–organic frameworks for gas separation: the possibility of translating adsorbents into membranes DOI
Guining Chen, Guozhen Liu,

Yang Pan

et al.

Chemical Society Reviews, Journal Year: 2023, Volume and Issue: 52(14), P. 4586 - 4602

Published: Jan. 1, 2023

We highlighted the similarities/differences between zeolites and MOFs in adsorption membrane separation discussed feasibility of adsorbent-to-membrane separation.

Language: Английский

Citations

127
Functional metal/covalent organic framework materials for triboelectric nanogenerator DOI
Zhichao Shao, Junshuai Chen, Qiong Xie

et al.

Coordination Chemistry Reviews, Journal Year: 2023, Volume and Issue: 486, P. 215118 - 215118

Published: March 30, 2023

Language: Английский

Citations

99
Porous crystalline materials for memories and neuromorphic computing systems DOI

Guanglong Ding,

Jiyu Zhao,

Kui Zhou

et al.

Chemical Society Reviews, Journal Year: 2023, Volume and Issue: 52(20), P. 7071 - 7136

Published: Jan. 1, 2023

This review highlights the film preparation methods and application advances in memory neuromorphic electronics of porous crystalline materials, involving MOFs, COFs, HOFs, zeolites.

Language: Английский

Citations

94
Isomeric Oligo(Phenylenevinylene)‐Based Covalent Organic Frameworks with Different Orientation of Imine Bonds and Distinct Photocatalytic Activities DOI Open Access
Wenbo Dong,

Zhiying Qin,

Kuixing Wang

et al.

Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 62(5)

Published: Dec. 1, 2022

Imine-linked covalent organic frameworks (COFs) have been extensively studied in photocatalysis because of their easy synthesis and excellent crystallinity. The effect imine-bond orientation on the photocatalytic properties COFs, however, is still rarely studied. Herein, we report two novel COFs with different orientations imine bonds using oligo(phenylenevinylene) moieties. showed similar structures but great differences photoelectric properties. COF-932 demonstrated a superior hydrogen evolution performance compared to COF-923 when triethanolamine was used as sacrificial agent. Interestingly, use ascorbic acid led protonation further altering direction electron transfer. performances were increased 23.4 0.73 mmol g-1 h-1 for protonated COF-932, respectively. This study provides clear strategy design imine-linked COF-based photocatalysts advances development COFs.

Language: Английский

Citations

86
Nanoarchitectonics of Hollow Covalent Organic Frameworks: Synthesis and Applications DOI
Lijin Huang, Juan Yang, Yusuke Asakura

et al.

ACS Nano, Journal Year: 2023, Volume and Issue: 17(10), P. 8918 - 8934

Published: May 2, 2023

Hollow covalent organic frameworks (COFs) have gained significant attention because of their specific properties, including enhanced surface-to-volume ratio, large surface area, hierarchical structure, highly ordered nanostructures, and excellent chemical stability. These intrinsic characteristics endow hollow COFs with fascinating physicochemical properties make them attractive for widespread applications, such as catalysis, energy storage, drug delivery, therapy, sensing, environmental remediation. This review focuses on the recent developments in synthesis derivatives. In addition, practical applications various fields are summarized. Finally, challenges future opportunities terms synthetic methodologies discussed. expected to play an important role materials science.

Language: Английский

Citations

74
Membrane Technology for Energy Saving: Principles, Techniques, Applications, Challenges, and Prospects DOI Creative Commons
Ahmed I. Osman, Zhonghao Chen, Ahmed M. Elgarahy

et al.

Advanced Energy and Sustainability Research, Journal Year: 2024, Volume and Issue: 5(5)

Published: Feb. 19, 2024

Membrane technology emerges as a transformative solution for global challenges, excelling in water treatment, gas purification, and waste recycling. This comprehensive review navigates the principles, advantages, prospects of membrane technology, emphasizing its pivotal role addressing contemporary environmental sustainability issues. The goal is to contribute objectives by exploring mechanisms, limitations technology. Noteworthy features include energy efficiency, selectivity, minimal footprint, distinguishing it from conventional methods. Advances nanomembranes, organic porous membranes, metal‐organic frameworks‐based membranes highlight their potential energy‐efficient contaminant removal. underscores integration renewable sources eco‐friendly desalination separation processes. future trajectory unfolds with next‐gen nanocomposite sustainable polymers, optimized consumption through electrochemical hybrid approaches. In healthcare, reshapes exchange, hemodialysis, biosensors, wound healing, drug delivery, while chemical industries, streamlines solvent separation. Challenges like fouling, material stability, efficiency are acknowledged, artificial intelligence recognized progressing frontier. Despite limitations, holds promise revolutionizing diverse industries.

Language: Английский

Citations

70
Integrated Micro Space Electrostatic Field in Aqueous Zn‐Ion Battery: Scalable Electrospray Fabrication of Porous Crystalline Anode Coating DOI
Can Guo, Jie Zhou, Yu‐Ting Chen

et al.

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(11)

Published: Jan. 20, 2023

Abstract The inhomogeneous consumption of anions and direct contact between electrolyte anode during the Zn‐deposition process generate Zn‐dendrites side reactions that can aggravate space‐charge effect to hinder practical implementation zinc‐metal batteries (ZMBs). Herein, electrospray has been applied for scalable fabrication (>10 000 cm 2 in a batch‐experiment) hetero‐metallic cluster covalent‐organic‐frameworks (MCOF‐Ti 6 Cu 3 ) nanosheet‐coating (MNC) with integrated micro space electrostatic field ZMBs protection. MNC@Zn symmetric cell presents ultralow overpotential (≈72.8 mV) over 10 cycles at 1 mAh −2 20 mA , which is superior bare Zn state‐of‐the‐art porous crystalline materials. Theoretical calculations reveal MNC facilitate deposition‐kinetic homogenize electric significantly promote lifespan ZMBs.

Language: Английский

Citations

69
UiO-66/Carboxylated Multiwalled Carbon Nanotube Composites for Highly Efficient and Stable Voltammetric Sensors for Gatifloxacin DOI

Xuan Wan,

Haohao Du,

Du Tuo

et al.

ACS Applied Nano Materials, Journal Year: 2023, Volume and Issue: 6(20), P. 19403 - 19413

Published: Oct. 12, 2023

The excessive use of gatifloxacin (GAT) can seriously pollute the environment and damage human health. Therefore, reliable detection its concentration is essential for environmental protection physical Herein, an efficient stable voltammetric sensor based on zirconium-based metal–organic framework/carboxylated multiwalled nanotube nanocomposites (UiO-66/MWCNT-COOH) was constructed determination GAT. morphologies, microstructures, electrochemical properties UiO-66/MWCNT-COOH were investigated by using various microscopic, spectroscopic, techniques. showed good electrocatalytic activity GAT oxidation with remarkable response signals, which primarily attributed to synergistic effect from UiO-66 MWCNT-COOH. Electrochemical kinetics studies revealed that irreversible diffusion-limited reaction involving two protons electrons. anodic peak current linearly correlated in range 0.05 10 μM a low limit 0.0075 μM. Moreover, demonstrated high selectivity, reproducibility, repeatability as well extraordinary long-term stability (at least 7 weeks). proposed reliably detected trace effluent, milk, serum, eye drops satisfactory recoveries. Together outstanding merits such cost, robust response, short assay time, sensitivity, shows enormous prospects situ multiple antibiotics.

Language: Английский

Citations

57