Recent advances in analytical sensing detection of heavy metal ions based on covalent organic frameworks nanocomposites

Sensitive and selective determination of heavy metal ions is an important research. Analytical detection techniques that are based on nanomaterials have shown advantages of simplicity, sensitivity, and low cost. Covalent organic frameworks (COFs) are a newly emerging class of crystalline porous orga...

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Published in:TrAC, Trends in analytical chemistry (Regular ed.) Trends in analytical chemistry (Regular ed.), 2024-02, Vol.171, p.117488, Article 117488
Main Authors: Li, Libo, Bi, Xiaoya, Zhen, Meiyang, Ren, Yue, Zhang, Li, You, Tianyan
Format: Article
Language:English
Subjects:
analytical chemistry
Colorimetry
Covalent organic frameworks
Electrochemistry
Fluorescence
Heavy metal ions
heavy metals
nanocomposites
nanomaterials
Sensing applications
surface area
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Summary:Sensitive and selective determination of heavy metal ions is an important research. Analytical detection techniques that are based on nanomaterials have shown advantages of simplicity, sensitivity, and low cost. Covalent organic frameworks (COFs) are a newly emerging class of crystalline porous organic frameworks that are connected by organic monomers via covalent bonds. Currently, COFs nanocomposites have been extended to analytical sensing applications, especially the construction of sensors benefiting from their structural tailorability and diversity, large surface area, intrinsic stability, and tunable functionality. This review mainly summarizes the recent advances in COFs nanocomposites-based sensors for chemical detection of heavy metal ions. The unique advantages of COFs for chemical sensing are highlighted. Then, different types of chemical sensors for heavy metal ions based on fluorescence, colorimetry and electrochemistry are reviewed. Simultaneously, the analytical performances are summarized. Finally, a summary of the current achievements is given and further future research directions are outlined. •Highly efficient detection of heavy metal ions (HMIs) is crucial in various fields.•Analytical sensing methods based on nanomaterials are low-cost, simple, and efficient.•Advantages of COFs for analytical sensing methods are highlighted in detail.•COFs nanocomposites-based fluorescent, colorimetric and electrochemical sensors for HMIs are reviewed.
ISSN:0165-9936
1879-3142
DOI:10.1016/j.trac.2023.117488