A novel N,S-rich COF and its derived hollow N,S-doped carbon@Pd nanorods for electrochemical detection of Hg2+ and paracetamol

Wang, Linyu; Yang, Yuxi; Liang, Huihui; Wu, Na; Peng, Xuebiao; Wang, Li; Song, Yonghai

doi:10.1016/j.jhazmat.2020.124528

Cited by 81 publications

(26 citation statements)

References 51 publications

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“…The resulting COF exhibited high sensitivity, selectivity, and visibility thanks to these combined factors. Recently, N, S-rich COF BTT-TZT was synthesized by Song et al [120]. The COF showed excellent sensing of Hg 2+ in the range 0.54 nM-5.0 µM at a sensing limit of 0.18 nM.…”

Section: Cofs As Sensors For Chemicalsmentioning

confidence: 99%

Structural Characteristics and Environmental Applications of Covalent Organic Frameworks

et al. 2021

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Covalent organic frameworks (COFs) are emerging crystalline polymeric materials with highly ordered intrinsic and uniform pores. Their synthesis involves reticular chemistry, which offers the freedom of choosing building precursors from a large bank with distinct geometries and functionalities. The pore sizes of COFs, as well as their geometry and functionalities, can be pre-designed, giving them an immense opportunity in various fields. In this mini-review, we will focus on the use of COFs in the removal of environmentally hazardous metal ions and chemicals through adsorption and separation. The review will introduce basic aspects of COFs and their advantages over other purification materials. Various fabrication strategies of COFs will be introduced in relation to the separation field. Finally, the challenges of COFs and their future perspectives in this field will be briefly outlined.

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Section: Cofs As Sensors For Chemicalsmentioning

confidence: 99%

Structural Characteristics and Environmental Applications of Covalent Organic Frameworks

et al. 2021

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“…The PXRD pattern also shows a group of peaks at 17.9°, 18.2°, 19.8°and 27.3°, corresponding to the (021) (022) (01-2) and (203) planes, respectively, which is highly consistent with previous literature. 25 The peaks between 25°and 28 o are considered as the cross-plane diffraction of the super cell, which represents the expansion of the interlayer distance caused by the framework flexibility. 26 The porosity characteristics of TpAt were checked by N 2 adsorption isotherms at 77 K (Fig.…”

Section: Preparation and Characterization Of Tpatmentioning

confidence: 99%

“…10 With the help of flexible monomer replacement, functionalization and composite methods, COFs can successfully tackle challenges in gas storage, 11 catalysis, 12 drug delivery, 13 electrochemistry, 14 separation 15 and fluorescence 16 /chemical sensing. 17 So far, a lot of development and improvement work has been attempted in the application of COFs for the removal of toxic pollutants, especially heavy metal ions. 18 The thiol modified 2D mesoporous covalent organic framework COF-S-SH displayed exceedingly high uptake capacities for Hg(II) and Hg(0).…”

Section: Introductionmentioning

confidence: 99%

“…They have attracted good interest due to their series of unique properties, such as high specific surface area, low density, high thermal/chemical stability, and orderly and adjustable pore structure 10 . With the help of flexible monomer replacement, functionalization and composite methods, COFs can successfully tackle challenges in gas storage, 11 catalysis, 12 drug delivery, 13 electrochemistry, 14 separation 15 and fluorescence 16 /chemical sensing 17 …”

Section: Introductionmentioning

confidence: 99%

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Amidinothiourea‐linked covalent organic framework for the adsorption of heavy metal ions

Wang

Feng

Zhang

et al. 2021

Polymer International

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For the first time, a novel amidinothiourea-linked covalent organic framework (COF) (TpAt) has been successfully synthesized by the condensation between 1,3,5-triformylphloroglucinol and amidinothiourea via vacuum solvothermal reaction, and was further utilized for the adsorption of metal ions from aqueous solution. The effects of initial concentration, pH and contact time on the adsorption process were investigated. As a result, the TpAt COF showed maximum binding capacities as high as 95.44, 100.76 and 99.08 mg g -1 for Cr(III), Cd(II) and Cu(II) within 180 min at the initial concentration of 100 mg L -1 , respectively. The isotherms of metal ions onto TpAt could be described by the Freundlich isotherm equation, and the adsorption kinetics followed the pseudo-second-order model. The TpAt could be reused for more than five adsorption-elution cycles, whilst basically maintaining its original adsorption performance and the structural integrity of the COF layers. The robust adsorption efficiency can be attributed to the coordination between metal ions and N, O and S atoms in the TpAt framework. The TpAt COF represents an ideal candidate for the removal of heavy metal ions in environmental pollution treatment.

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“…So hollow-structured COF materials have gained a lot of attention in recent years. And the hollow COF got broad application prospects in the elds of environmental protection, 10,11 biomedicine, 12,13 membrane separation, 14 and food safety. 15,16 Gole et al reported a hollow imine COF tube formed by s bottom-up microtubular self-assembly, with a mean diameter of about 150 nm.…”

mentioning

confidence: 99%

Preparation of hollow tubular TpBD COF and pod-like ZIF-8/H-TpBD COF tubes using a porous anodic aluminum oxide membrane as template

Jiang

et al. 2021

RSC Adv.

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A novel N,S-rich COF and its derived hollow N,S-doped carbon@Pd nanorods for electrochemical detection of Hg2+ and paracetamol

Cited by 81 publications

References 51 publications

Structural Characteristics and Environmental Applications of Covalent Organic Frameworks

Structural Characteristics and Environmental Applications of Covalent Organic Frameworks

Amidinothiourea‐linked covalent organic framework for the adsorption of heavy metal ions

Preparation of hollow tubular TpBD COF and pod-like ZIF-8/H-TpBD COF tubes using a porous anodic aluminum oxide membrane as template

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