One Luminescent Cadmium Iodide with Free Bifunctional Azole Sites as a Triple Sensor for Cu2+, Fe3+, and Cr2O72– Ions

Huang, Li; Ran, Zi-you; Liu, Xing; Huang, Chengzhi; Qin, Qi‐Pin; Zhou, Jian

doi:10.1021/acs.inorgchem.2c02324

Cited by 11 publications

(3 citation statements)

References 102 publications

(75 reference statements)

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“…4c, S8c and S9c†). 72–74 The correlation between the relative emission intensity and Fe 3+ ion concentration can be very close to the Stern–Volmer equation at low concentration, but gradually deviated from linearity with the increase of the concentration. In the low concentration range of 0.02–0.10 mM, the R 2 values were 0.99729 for 1 , 0.97906 for 2 , and 0.98831 for 3 , respectively, while the K sv values were 13.55634 mM −1 for 1 , 10.54261 mM −1 for 2 , and 4.97947 mM −1 for 3 , respectively.…”

Section: Resultsmentioning

confidence: 60%

Three new Zn(ii) coordination polymers for highly selective and sensitive detection of Fe³⁺

Zhao

et al. 2023

CrystEngComm

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Section: Resultsmentioning

confidence: 60%

Three new Zn(ii) coordination polymers for highly selective and sensitive detection of Fe³⁺

Zhao

et al. 2023

CrystEngComm

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“…Therefore, designing and synthesizing a method for rapid detection of antibiotics in wastewater is critical but challenging. , Similarly, the detection of inorganic ions in wastewater is of great significance for the protection of ecological balance and animal and plant health. CrO 4 2– /Cr 2 O 7 2– ion, as a highly water-soluble oxyanion, has terrible toxicity and carcinogenicity after being discharged into the environment, leading a potential threat to humans and aquatic life in trace levels in water. − Therefore, the detection of Cr(VI) ions is highly imperative for the protection of the human health and environment. − …”

Section: Introductionmentioning

confidence: 99%

Two-Dimensional Lanthanide Metal–Organic Frameworks as a Platform for Sensing Pollutant and Nitrophenols Reduction

Wang,

Liu,

et al. 2023

Inorg. Chem.

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The discharge of harmful and toxic pollutants in water is destroying the ecosystem balance and human being health at an alarming rate. Therefore, the detection and removal of water pollutants by using stable and efficient materials are significant but challenging. Herein, three novel lanthanide metal−organic frameworks (were solvothermally constructed and structurally characterized. In the three Ln-MOFs, dinuclear metallic clusters {Ln 2 } were connected by deprotonated tetrazol-containing dicarboxylate TZI 3− to obtain a 2D layered framework with a point symbol of {4 2 •8 4 }•{4 6 }. Their excellent chemical and thermal stabilities were beneficial to carry out fluorescence sensing and achieve the catalytic nitrophenols (NPs) reduction. Especially, the incorporation of the nitrogen-rich tetrazole ring into their 2D layered frameworks enables the fabrication of Pd nanocatalysts (Pd NPs@LCUH-104/105/106) and have dramatically enhanced catalytic activity by using the unique metal−support interactions between three Ln-MOFs and the encapsulating palladium nanoparticles (Pd NPs). Specifically, the reduction of NPs (2-NP, 3-NP, and 4-NP) in aqueous solution by Pd NPs@LCUH-104 exhibits exceptional conversion efficiency, remarkable rate constants (k), and outstanding cycling stability. The catalytic rate of Pd NPs@LCUH-104 for 4-NP is nearly 8.5 times more than that of Pd/C (wt 5%) and its turnover frequency value is 0.051 s −1 , which indicate its excellent catalytic activity. Meanwhile, LCUH-105, as a multifunctional fluorescence sensor, exhibited excellent fluorescence detection of norfloxacin (NFX) (turn on) and Cr 2 O 7 2− (turn off) with high selectivity and sensitivity at a low concentration, and the corresponding fluorescence enhancement/quenching mechanism has also been systematically investigated through various detection means and theoretical calculations.

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“…Among these methods, fluorescent detection offers a simplistic approach with high sensitivity, accuracy, and economy for online monitoring and detection of Fe 3+ ions, making it a favorable choice. However, the widespread use of fluorescent sensors is currently limited by their cross-sensitivity to other metal ions such as Cu 2+ , Cr 3+ , Al 3+ , and Pb 2+ [8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Crystal Structure, and Luminescent Sensing Properties of a Supramolecular 3D Zinc(II) Metal–Organic Framework with Terephthalate and Bis(imidazol-1-yl)methane Linkers

et al. 2023

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Supramolecular 3D Zn(II) coordination polymer {[Zn(bim)(bdc)]⋅0.8DMF⋅0.4EtOH⋅0.1H2O }n (Zn-MOF), constructed from Zn2+ ions, bis(imidazol-1-yl)methane (bim) and terephthalate (bdc2−) anions, was synthesized and structurally characterized. Zn-MOF crystallizes in the tetragonal crystal system, space group P42/n. Each Zn(II) ion coordinates two neutral bim molecules in a bridging bidentate coordination mode via nitrogen atoms at position 3 of the imidazole rings and two bdc2− anions, with monodentate coordination of the carboxylate group for one of them and bidentate coordination for another. Zn(II) cations are in a distorted square pyramidal ZnN2O3 coordination environment. Metal cations are alternately linked by the bim and bdc2− ligands, forming a two-dimensional layered structure along the crystallographic plane ab. As a result of layer interpenetration, a supramolecular 3D network is formed. Zn-MOF demonstrated blue (aquamarine) emission with a maximum at 430 nm upon excitation at 325 nm. The luminescence lifetime of 6 ns is characteristic for ligand-centered fluorescence. The luminescent sensing properties of Zn-MOF in ethanol suspension toward inorganic cations and anions were evaluated and an emission quenching response was observed for Fe3+ and chromate/dichromate ions. Photoinduced electron transfer from Zn-MOF to Fe3+ was elucidated as a possible quenching mechanism on the basis of DFT calculations.

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One Luminescent Cadmium Iodide with Free Bifunctional Azole Sites as a Triple Sensor for Cu²⁺, Fe³⁺, and Cr₂O₇^2– Ions

Cited by 11 publications

References 102 publications

Three new Zn(ii) coordination polymers for highly selective and sensitive detection of Fe³⁺

Three new Zn(ii) coordination polymers for highly selective and sensitive detection of Fe³⁺

Two-Dimensional Lanthanide Metal–Organic Frameworks as a Platform for Sensing Pollutant and Nitrophenols Reduction

Synthesis, Crystal Structure, and Luminescent Sensing Properties of a Supramolecular 3D Zinc(II) Metal–Organic Framework with Terephthalate and Bis(imidazol-1-yl)methane Linkers

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One Luminescent Cadmium Iodide with Free Bifunctional Azole Sites as a Triple Sensor for Cu2+, Fe3+, and Cr2O72– Ions

Cited by 11 publications

References 102 publications

Three new Zn(ii) coordination polymers for highly selective and sensitive detection of Fe3+

Three new Zn(ii) coordination polymers for highly selective and sensitive detection of Fe3+

Two-Dimensional Lanthanide Metal–Organic Frameworks as a Platform for Sensing Pollutant and Nitrophenols Reduction

Synthesis, Crystal Structure, and Luminescent Sensing Properties of a Supramolecular 3D Zinc(II) Metal–Organic Framework with Terephthalate and Bis(imidazol-1-yl)methane Linkers

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One Luminescent Cadmium Iodide with Free Bifunctional Azole Sites as a Triple Sensor for Cu²⁺, Fe³⁺, and Cr₂O₇^2– Ions

Three new Zn(ii) coordination polymers for highly selective and sensitive detection of Fe³⁺

Three new Zn(ii) coordination polymers for highly selective and sensitive detection of Fe³⁺