A novel covalent-organic framework for highly sensitive detection of Cd2+, Pb2+, Cu2+ and Hg2+

Pei, Longsheng; Su, Jianpo; Yang, Hanlun; Wu, Yao; Du, Yan; Zhu, Yongmei

doi:10.1016/j.micromeso.2022.111742

Cited by 25 publications

(11 citation statements)

References 48 publications

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“…Zhu and co-workers prepared a highly crystalline COF based on imine linkages through Schiff base reaction of tripolycyanamide (TPA) and 2,4,6-triformyl pyrogallol (TDBA). 81 The prepared COF TDBA-TPA was applied to detect and remove heavy metal ions due to the huge specific surface area and abundant adsorption sites (−C�O, −NH 2 , −C�N) of COF. Therefore, the COF TDBA-TPA -based electrochemical sensor can detect Cd 2+ , Cu 2+ , Pb 2+ , Hg 2+ , and Zn 2+ in drinking water, simultaneously.…”

Section: ■ Detection Of Metal Ionsmentioning

confidence: 99%

Recent Progress of Covalent Organic Frameworks Applied in Electrochemical Sensors

et al. 2023

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As an emerging porous crystalline organic material, the covalent organic frameworks (COFs) are given more and more attention in many fields, such as gas storage and separation, catalysis, energy storage and conversion, luminescent devices, drug delivery, pollutant adsorption and removal, analysis and detection due to their special advantages of high crystallinity, flexible designability, controllable porosities and topologies, intrinsic chemical and thermal stability. In recent years, the COFs are applied in analytical chemistry, for instance, chromatography, solid-phase microextraction, luminescent and colorimetric sensing, surface-enhanced Raman scattering and electroanalytical chemistry. The COFs decorated electrodes show high performance for detecting trace substances with remarkable selectivity and sensitivity, such as heavy metal ions, glucose, hydrogen peroxide, drugs, antibiotics, explosives, phenolic compounds, pesticides, disease metabolites and so on. This review mainly summarized the application of COF based electrochemical sensor according to different target analytes.

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Section: ■ Detection Of Metal Ionsmentioning

confidence: 99%

Recent Progress of Covalent Organic Frameworks Applied in Electrochemical Sensors

et al. 2023

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“…2(d) (I)). [39][40][41] N 2 adsorption/desorption isotherms were measured at 77 K to evaluate the porosities of the TPP-ThZ, TPP-Th, and TPP-Bz CMPs (Fig. 3(a)).…”

Section: Design Synthesis and Characterizationmentioning

confidence: 99%

Tunable thiophene-based conjugated microporous polymers for the disposal of toxic hexavalent chromium

Kotp¹,

Torad²,

Nara³

et al. 2023

J. Mater. Chem. A

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“…Obviously, high porosity and lots of N and S atoms in matrix are responsible for high selectivity toward the target species. A S‐containing COF (COF MELE‐BTDD ) with a pore size of 3.7 nm was formed by condensation between MELE and BTDD and used to electrochemically detect HMIs including Cd 2+ , Pb 2+ , Cu 2+ , Hg 2+ and remove Hg 2+ [147] . Due to multiple active sites (N−S−N and −C=N) and highly ordered planar conjugated porous structure, the developed sensor exhibited excellent detection performance for HMIs and LODs of Cd 2+ , Pb 2+ , Cu 2+ and Hg 2+ were 4.74, 1.23, 1.14 and 1.07 nM, respectively.…”

Section: Molecular Recognition Improvement Of Cof Materials For Enhan...mentioning

confidence: 99%

Functional COFs for Electrochemical Sensing: From Design Principles to Analytical Applications

Wei,

Yang,

Guo

2023

ChemistrySelect

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At present, applications of covalent organic frameworks (COFs), a class of novel crystalline porous materials fabricated by organic structural blocks only containing light elements such as C, H, N, O and B through strong covalent bonds, in electrochemical sensing have entered a period of rapid development and showed great potential in various analytical fields such as environmental analysis, food analysis, pharmaceutical analysis, biological and clinical analysis owing to their unique advantages including regular porosity, large specific surface area, periodical ordered structure, extended π‐conjugated system, abundant functional groups and outstanding thermal and chemical stability. But there are still many concerns that need to be urgently solved for further electrochemical sensing application including improvement of electric conductivity and enhancement of selectivity. Limited by poor conductivity and low recognition ability of primitive COFs, they always need to be further functionalized. To further promote the development of COFs‐based electrochemical sensing technology, here, we summarize and review the recent advances on construction of two‐dimensional functional COFs materials for electrochemical sensing applications and related sensing device setups in detail, including design strategies, preparation methods, modification considerations, sensing principles and analytical applications, and tentatively propose development prospects and outlooks in future.

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A novel covalent-organic framework for highly sensitive detection of Cd2+, Pb2+, Cu2+ and Hg2+

Cited by 25 publications

References 48 publications

Recent Progress of Covalent Organic Frameworks Applied in Electrochemical Sensors

Recent Progress of Covalent Organic Frameworks Applied in Electrochemical Sensors

Tunable thiophene-based conjugated microporous polymers for the disposal of toxic hexavalent chromium

Functional COFs for Electrochemical Sensing: From Design Principles to Analytical Applications

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