Simply-prepared hollow covalent organic framework as a dual-function platform for detection and removal of multiple heavy metal ions

Liu, Jiawei; Zhong, Xiang; Zhang, Qi-e; Deng, Linbo; Hou, Linli; Zou, Jin; Liu, Shuwu; Gao, Yansha; Wang, Linyu; Lu, Limin

doi:10.1016/j.microc.2024.110603

Microchemical Journal

2024

DOI: 10.1016/j.microc.2024.110603

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Simply-prepared hollow covalent organic framework as a dual-function platform for detection and removal of multiple heavy metal ions

Jiawei Liu,

Xiang Zhong,

Qi-e Zhang

et al.

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Cited by 3 publications

References 40 publications

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Covalent Organic Framework Nanoarchitectonics: Recent Advances for Precious Metal Recovery

Guo,

Liu,

Tao

et al. 2024

Advanced Materials

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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 to their tunable pore size, facile functionalization, exceptional chemical stability, and large specific surface area. This review provides an overview of the latest research progress in utilizing COFs to recover PMs. Firstly, the design and synthesis strategies of chemically stable COF‐based materials, including pristine COFs, functionalized COFs, and COF‐based composites, are delineated. Furthermore, the application of COFs in the recovery of gold, silver, and platinum group elements is delved into, emphasizing their high adsorption capacity and selectivity as well as recycling ability. Additionally, various interaction mechanisms between COFs and PM ions are analyzed. Finally, the current challenges faced by COFs in the field of PM recovery are discussed, and potential directions for future development are proposed, including enhancing the recyclability and reusability of COF materials and realizing the high recovery of PMs from actual acidic wastewater. With the targeted development of COF‐based materials, the recovery of PMs can be realized more economically and efficiently in the future.

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Covalent Organic Framework Nanoarchitectonics: Recent Advances for Precious Metal Recovery

Guo,

Liu,

Tao

et al. 2024

Advanced Materials

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Preparation and characterization of pyrimidine‐cored covalent organic frameworks for heavy metal removal

Wang,

Ma,

Wang

et al. 2024

Journal of Polymer Science

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In this work, two novel pyrimidine‐cored covalent organic frameworks TpTap‐COF and TpTan‐COF were synthesized for the first time and used for the adsorption of heavy metal ions in aqueous solution. Both COFs are nanofiber clusters with preferable crystallinity and thermal stability. The impact parameters such as pH value, shaking time, initial concentration, and temperature were studied by batch adsorption experiments in the multi‐metal ions system. The adsorption of six metal ions onto COFs follows the pseudo‐second‐order kinetic model and the Freundlich isotherm model, which is a chemical adsorption process that occurs on non‐uniform surfaces. The adsorption rate is determined by both film diffusion and intraparticle diffusion. Further research on the adsorption of copper ions onto COFs indicates the formation of metal complexes between O#N#N/O#O chelating sites in the COF skeleton and Cu ions through the sharing of lone pair electrons.

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Two 3D Co(II)-based hydrogen-bonded networks as luminescent sensors for detection of Al3+, Pb2+ and vitamin B2

Zhao,

Wang

et al. 2025

Journal of Molecular Structure

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Simply-prepared hollow covalent organic framework as a dual-function platform for detection and removal of multiple heavy metal ions

Cited by 3 publications

References 40 publications

Covalent Organic Framework Nanoarchitectonics: Recent Advances for Precious Metal Recovery

Covalent Organic Framework Nanoarchitectonics: Recent Advances for Precious Metal Recovery

Preparation and characterization of pyrimidine‐cored covalent organic frameworks for heavy metal removal

Two 3D Co(II)-based hydrogen-bonded networks as luminescent sensors for detection of Al3+, Pb2+ and vitamin B2

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