Covalent Organic Framework Nanoarchitectonics: Recent Advances for Precious Metal Recovery

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(33)

Published: June 19, 2024

The recovery of precious metals (PMs) from secondary resources has garnered significant attention due to environmental and economic considerations. Covalent organic frameworks (COFs) have emerged as promising adsorbents for this purpose, owing their tunable pore size, facile functionalization, exceptional chemical stability, large specific surface area. This review provides an overview the latest research progress in utilizing COFs recover PMs. Firstly, design synthesis strategies chemically stable COF-based materials, including pristine COFs, functionalized composites, are delineated. Furthermore, application gold, silver, platinum group elements is delved into, emphasizing high adsorption capacity selectivity well recycling ability. Additionally, various interaction mechanisms between PM ions analyzed. Finally, current challenges faced by field discussed, potential directions future development proposed, enhancing recyclability reusability COF materials realizing PMs actual acidic wastewater. With targeted can be realized more economically efficiently future.

Language: Английский

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Adsorption of pharmaceuticals from water using metal-organic frameworks (MOFs), MOF-derived carbons, covalent-organic frameworks (COFs), COF-derived carbons: Comparison of the four adsorbents

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 488, P. 151022 - 151022

Published: April 5, 2024

Language: Английский

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A 2D Acridine‐Based Covalent Organic Framework for Selective Detection and Efficient Extraction of Gold from Complex Aqueous‐Based Matrices

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(24)

Published: April 12, 2024

Developing candidate materials which possess the ability of both selective detection and efficient capture precious metal gold is highly desirable for environment economy. However, most reported only focus on single function, seriously restricts their practical application as probes or adsorbents. Herein, a two dimensional (2D) acridine-based covalent organic framework (TpDa-COF) prepared via linkage imine bonds adsorption. The synthesized COF can achieve fluorescence colorimetric dual sensing Au

Language: Английский

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Advanced development of three-dimensional covalent organic frameworks: Valency design, functionalization, and applications

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 504, P. 215659 - 215659

Published: Jan. 16, 2024

Language: Английский

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Alkadiyne–Pyrene Conjugated Frameworks with Surface Exclusion Effect for Ultrafast Seawater Desalination

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(5), P. 3075 - 3085

Published: Jan. 4, 2024

Billions of populations are suffering from the supply-demand imbalance clean water, resulting in a global sustainability crisis. Membrane desalination is promising method to produce fresh water saline waters. However, conventional membranes often encounter challenges related low permeation, negatively impacting energy efficiency and productivity. Herein, we achieve ultrafast over newly developed alkadiyne-pyrene conjugated frameworks membrane supported on porous copper hollow fiber. With distillation, exhibits nearly complete NaCl rejection (>99.9%) ultrahigh fluxes (∼500 L m

Language: Английский

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Highly selective and effective gold recovery from electronic wastewater by synergistic effect between covalent organic framework (COF) and MoS2: Performance and mechanisms

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 338, P. 126599 - 126599

Published: Feb. 2, 2024

Language: Английский

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Two-dimensional lamellar stacking COF membrane with charge repulsion effect for ions separation

Journal of Membrane Science, Journal Year: 2024, Volume and Issue: 699, P. 122645 - 122645

Published: March 12, 2024

Language: Английский

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Covalent organic frameworks as advanced materials for adsorption and analysis of contaminants in environmental, biological and food matrices

Coordination Chemistry Reviews, Journal Year: 2025, Volume and Issue: 533, P. 216507 - 216507

Published: Feb. 21, 2025

Language: Английский

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Modulating Skeletons of Covalent Organic Framework for High‐Efficiency Gold Recovery

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 63(1)

Published: Nov. 21, 2023

Covalent organic frameworks (COFs) have attracted considerable attention as adsorbents for capturing and separating gold from electronic wastes. To enhance the binding capture efficiency, constructing hydrogen-bond nanotraps along pore walls was one of most widely adopted approaches. However, development absorbing skeletons ignored due to weak ability salts (Au). Herein, we demonstrated skeleton engineering construct highly efficiently absorbs Au capture. The strong donating feature diarylamine units enhanced density sites (imine-linkage) thus resulted in high capacities over 1750 mg g

Language: Английский

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Modulating Skeletons of Covalent Organic Framework for High‐Efficiency Gold Recovery

Angewandte Chemie, Journal Year: 2023, Volume and Issue: 136(1)

Published: Nov. 21, 2023

Abstract Covalent organic frameworks (COFs) have attracted considerable attention as adsorbents for capturing and separating gold from electronic wastes. To enhance the binding capture efficiency, constructing hydrogen‐bond nanotraps along pore walls was one of most widely adopted approaches. However, development absorbing skeletons ignored due to weak ability salts (Au). Herein, we demonstrated skeleton engineering construct highly efficiently absorbs Au capture. The strong donating feature diarylamine units enhanced density sites (imine‐linkage) thus resulted in high capacities over 1750 mg g −1 all three COFs. Moreover, performance further improved via ionization units. ionic COF achieved 90 % maximal adsorption capacity, 1.63 times that charge‐neutral within ten minutes, showed remarkable uptakes 1834 , exceptional selectivity (97.45 %) cycling stability. theoretical calculation revealed altering imine bonds amine after frameworks, which enabled bind AuCl 4 − coulomb force contributed kinetics. This work inspires us design molecular/ionic based on

Language: Английский

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