A water-stable Zn(II) coordination polymer for a high sensitivity detection of Fe3+ and 2,4,6-trinitrophenol

Zhu, Cai‐Yong; Wang, Cuili; Chen, Le; Gao, Wei; Zhang, Xiumei

doi:10.1016/j.jssc.2022.123079

Cited by 10 publications

(7 citation statements)

References 87 publications

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“…Its suspension exhibits good luminescence performance in water and, furthermore, the compound shows high selectivity for sensing Fe(III) ion and 2,4,6-trinitrophenol (TNP) in this media. The quenching constants or Stern–Volmer coefficient (Ksv) and the DLs are 1.7 × 10 4 M −1 and 0.44 μM for Fe(III), and 3.8 × 10 4 M −1 and 0.19 μM for TNP, respectively [ 50 ].…”

Section: Zinc(ii) Carboxylate Coordination Polymers Developed For Dif...mentioning

confidence: 99%

Zinc(II) Carboxylate Coordination Polymers with Versatile Applications

et al. 2023

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This review considers the applications of Zn(II) carboxylate-based coordination polymers (Zn-CBCPs), such as sensors, catalysts, species with potential in infections and cancers treatment, as well as storage and drug-carrier materials. The nature of organic luminophores, especially both the rigid carboxylate and the ancillary N-donor bridging ligand, together with the alignment in Zn-CBCPs and their intermolecular interaction modulate the luminescence properties and allow the sensing of a variety of inorganic and organic pollutants. The ability of Zn(II) to act as a good Lewis acid allowed the involvement of Zn-CBCPs either in dye elimination from wastewater through photocatalysis or in pathogenic microorganism or tumor inhibition. In addition, the pores developed inside of the network provided the possibility for some species to store gaseous or liquid molecules, as well as to deliver some drugs for improved treatment.

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Section: Zinc(ii) Carboxylate Coordination Polymers Developed For Dif...mentioning

confidence: 99%

Zinc(II) Carboxylate Coordination Polymers with Versatile Applications

et al. 2023

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“…In addition, the UV-Vis absorption spectrum of Fe 3+ presented large overlap with the excitation band of CP 1 (λ em = 390 nm) ( Figure 7 b), which indicated that the competitive absorption might be the main cause of fluorescence quenching of CP 1 by Fe 3+ . In summary, based on the above results, the plausible mechanism of the quenching phenomenon can be attributed to the combined effect of resonance energy transfer and competitive energy absorption [ 28 ].…”

Section: Resultsmentioning

confidence: 99%

“…Therefore, there is clear evidence for the competitive adsorption between each analyte and CP 1 . In summary, the fluorescence quenching mechanism of Cr 2 O 7 2− /MnO 4 − on CP 1 is mainly attributed to the resonance energy transfer, as well as the competitive energy absorption [ 28 ].…”

Section: Resultsmentioning

confidence: 99%

A Zn(II) Coordination Polymer for Fluorescent Turn-Off Selective Sensing of Heavy Metal Cation and Toxic Inorganic Anions

Li,

Zhang,

Wang

et al. 2024

Molecules

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A novel coordination polymer [Zn(atyha)2]n (1) (Hatyha = 2-(2-aminothiazole-4-yl)-2- hydroxyiminoacetic acid) was constructed by hydrothermal reaction of Zn2+ with Hatyha ligand. CP 1 exhibits a 2D (4,4)-connected topological framework with Schläfli symbol of {44·62}, where atyha− anions serve as tridentate ligands, bridging with Zn2+ through carboxylate, thiazole and oxime groups. CP 1 displays a strong ligand-based photoluminescence at 390 nm in the solid state, and remains significantly structurally stable in water. Interestingly, it can be utilized as a fluorescent probe for selective and sensitive sensing of Fe3+, Cr2O72− and MnO4− through the fluorescent turn-off effect with limit of detection (LOD) of 3.66 × 10−6, 2.38 × 10−5 and 2.94 × 10−6 M, respectively. Moreover, the efficient recyclability for detection of Fe3+ and Cr2O72− is better than that for MnO4−. The mechanisms of fluorescent quenching involve reversible overlap of UV-Vis absorption bands of the analytes (Fe3+, Cr2O72− and MnO4−) with fluorescence excitation and emission bands for CP 1, respectively.

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“…Luminescent properties of this kind of coordination polymers can be effectively utilized to sense different materials through the process of fluorescence quenching. Several coordination polymers based on d 10 metal systems were reported to effectively sense various nitroaromatic compounds through fluorescence quenching mechanism [ [65] , [66] , [67] , [68] , [69] , [70] , [71] , [72] , [73] , [74] ].…”

Section: Introductionmentioning

confidence: 99%