Dual-responsive luminescent sensors based on two Cd-MOFs: rare enhancement toward acac and quenching toward Cr2O72−

Yu, Yue; Wang, Yuhao; Xu, Haijun; Lü, Jing; Wang, Huaiwei; Li, Dacheng; Dou, Jianmin; Li, Yun‐Wu; Wang, Suna

doi:10.1039/d0ce00405g

Cited by 41 publications

(21 citation statements)

References 70 publications

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“…As is well known, acetylacetone (acac) has been excessively employed as precursor or intermediate in organic synthesis, [18] modifier or chelating agent in sol‐gel mathod, [19] additive for gasoline and lubricants, [20] a nonaqueous redox‐flow battery [21] and an analytical extraction and separation reagent [22] . Nevertheless, as a flammable, volatile toxic chemical, acac can cause serious environmental issues and health problems such as dizziness, sicchasia, vomit, unconscious, etc [23] .…”

Section: Introductionmentioning

confidence: 99%

A New Fluorescence MOF for Highly Sensitive Detection of Acetylacetone

Wang

Chang

et al. 2021

ChemistrySelect

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A novel metal‐organic framework (MOF) assembled by a semi‐rigid tricarboxylate, namely, 5‐(3,4‐dicarboxylphenoxy) nicotic acid (H3L) has been solvothermally synthesized: [Zn3(L)2(H2O)2] ⋅ 3H2O 1. Single‐crystal X‐ray diffraction analysis indicates that MOF 1 shows 2‐D layer with quadrangle channels along the a axis (ca. 7.0×8.3 Å2). The 2‐D layer self‐assembles into a final 3‐D supramolecular network via the interlayer π⋯π interactions. The photoluminescence investigations indicate that 1 can selectively and sensitively detect acetylacetone (acac) with high KSV value of 3.597×104 M−1 and low limit of detection (LOD) of 50.77 ppb. Further mechanism studies have shown that static photo‐competitive absorption, photoinduced electron transfer and H‐bonding interaction between chemosensor and the analyte may be the primary causes of the fluorescence quenching effect for acac.

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Section: Introductionmentioning

confidence: 99%

A New Fluorescence MOF for Highly Sensitive Detection of Acetylacetone

Wang

Chang

et al. 2021

ChemistrySelect

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“…The coordination of Cd metal (d 10 ) with the ligands and possible stacking interactions inside the frameworks likely influenced the rigidity and degree of π-electron overlap, in addition to the energy transition, owing to the interaction of guest analytes causing differences in emission. [197] MOF-based sensors can recognize acetone solvent molecules with high efficiency. Recently, Zho and coworkers reported an Eu(III)-MOF with imine nitrogen and OH functionalities that showed electrostatic interactions with acetone molecules, resulting in quenching of the luminescence spectra of the MOF.…”

Section: Mofs Sensing Behavior Toward Organic Solventsmentioning

confidence: 99%

“…Reproduced with permission. [ 197 ] Copyright 2020, Royal Society of Chemistry. c) Luminescence spectra of MOF LCU 108 in DMF with organic molecules, and images of blank and acac‐containing DMF solutions (UV light irradiation at 365 nm).…”

Section: Mofs Sensing Behavior Toward Toxic Chemicalsmentioning

confidence: 99%

Section: Mofs Sensing Behavior Toward Toxic Chemicalsmentioning

confidence: 99%

“…b) Luminescence spectra of Cd(II)-MOF LCU107 in DMF with different organic molecules, and images of blank and acac-containing DMF solutions (UV light irradiation at 365 nm). Reproduced with permission [197]. Copyright 2020, Royal Society of Chemistry.…”

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Mechanistic Insight into Charge and Energy Transfers of Luminescent Metal–Organic Frameworks Based Sensors for Toxic Chemicals

Mohan

Kumar

et al. 2021

Advanced Sustainable Systems

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The success of MOFs has driven their development as a new tool for sensing analytes including toxic chemicals. [19][20][21] The MOF sensors can be applied in both environmental and biological systems. [22] The MOF sensor field has been established with the development of sensors for different metal ions, anions, and molecules. [23,24] The potential application of MOF sensors to the detection of heavy metal ions, toxic anions, and other hazardous species is of great interest. [25,26] Specifically, luminescence technology has allowed the roles of various MOF sites in analyte capture to be easily studied. [27][28][29] The precise use of MOFs is potentially a good tool for analyte detection. Furthermore, MOFs have been established as potential materials for selective, fast, and portable tools for sensing toxic chemicals, with the advantage of light-emitting properties. [30,31] Interestingly, these sensing models can operate in water and are pH stable with high efficiency. [32] Furthermore, MOFs are wellknown materials for the degradation of toxic chemicals. [33,34] Several reports have been published on MOF sensors for toxicant chemicals, such as metal ions, anions, organic solvents, pesticides, nitroaromatic compounds (NACs), chemical warfare agents, [35] and others. [36][37][38] Some reviews have summarized applications of MOFs in sensing and detection probes for ions and volatile organic compounds, [39] and MOF sensors in pesticide detection and absorption with their classification. [40] Others have summarized and analyzed interactions between hazardous compound adsorbates and MOFs. [41,42] The stability and applications of MOFs have been summarized by the research groups of Ding and coworkers. [43] Pehlivan and et al. summarized the role of fluorescence resonance energy transfer in elucidating molecular interactions utilized in biosensing tools. [44,45] Besides luminescence sensing, the reviewers summarized the progress of MOFs relevance in the various area including environment and medical science. [46] Recently, Liu and coworkers summarized the progress of MOFs and discussed the remaining challenges in drug delivery, [47] Garcia and coworkers studied and compared the MOFs as photocatalysts with common inorganic photocatalysts, [48] and Manos and coworkers studied and summarized MOFs challenges and prospects for ion-exchange and sorption applications. [49] Despite these meaningful reviews, the factors responsible for signal changes, mechanisms, and limits of detection have Mechanistic studies of materials able to detect hazardous and toxic chemicals, such as common organic solvents, pesticides, and nitroaromatic compounds (NACs), are critically important owing to the threat they pose to humans and the environment. Recently, porous luminescent metal-organic frameworks (MOFs) with multifunctional sites, high surface areas, and structural tunability have emerged as sensory devices for the detection of hazardous and toxic chemicals. Herein, recent progress regarding the mechanistic behavior of MOF sensors in the det...

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Chiral amide-bonded hydroxyquinoline-substituted porphyrin fluorescent probes “off–on–off” pH sensing properties

Haider

Gu²,

Tang³

et al. 2022

J Incl Phenom Macrocycl Chem

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Dual-responsive luminescent sensors based on two Cd-MOFs: rare enhancement toward acac and quenching toward Cr₂O₇²⁻

Abstract: Two luminescent Cd-MOFs were employed as dual-responsive luminescence sensors to detect acac and Cr2O72− through turn-on and turn-off mechanisms.

Cited by 41 publications

References 70 publications

A New Fluorescence MOF for Highly Sensitive Detection of Acetylacetone

A New Fluorescence MOF for Highly Sensitive Detection of Acetylacetone

Mechanistic Insight into Charge and Energy Transfers of Luminescent Metal–Organic Frameworks Based Sensors for Toxic Chemicals

Chiral amide-bonded hydroxyquinoline-substituted porphyrin fluorescent probes “off–on–off” pH sensing properties

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