Turn-on fluorescence in a stable Cd(II) metal-organic framework for highly sensitive detection of Cr3+ in water

Li, He; Li, Donglin; Qin, Bowen; Li, Wenliang; Zheng, Haoyan; Zhang, Xiaoxin; Zhang, Jingping

doi:10.1016/j.dyepig.2020.108359

Cited by 25 publications

(12 citation statements)

References 60 publications

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“…This difference in the shift indicates that weak bonding interactions exist between the Cr 3+ ions and the oxygen atom of the ether bond rather than between Cr 3+ and the carboxylate group. 42,43 Furthermore, the 1s peak of N (400.1 eV) remained unchanged (Figure S8), indicating that Cr 3+ did not interact with N in the auxiliary ligand. Moreover, the SEM images reveal the retention of the morphology and the absence of surface-deposited solids throughout the Cr 3+ detection process (Figure 4c,d).…”

Section: ■ Introductionmentioning

confidence: 99%

A Two-Fold Interpenetrated Dual-Emitting Luminescent Metal–Organic Framework as a Ratiometric Sensor for Chromium(III)

et al. 2021

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A novel two-fold interpenetrated metal−organic framework, namely Co−EDDA, was synthesized by hydrothermal reaction of 5,5′-[ethane-1,2-diylbis(oxy)]diisophthalic acid (H 4 EDDA), Co(NO 3 ) 2 •6H 2 O, and 1,4di(1H-imidazol-1-yl)benzene in water in an alkaline environment and structurally characterized. Co−EDDA could display clear dual-emission signals at 350 and 430 nm, representing the charge transfer emission between metal ions and the ligand and the ligand-based emission, respectively, which represents the ratiometric luminescence response to chromium(III) with high selectivity and sensitivity (limit of detection of 0.54 μM). Comprehensive studies indicate that the detection can be attributed to the interaction between the Cr 3+ ions and the O atoms on the ether bond in Co−EDDA.

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Section: ■ Introductionmentioning

confidence: 99%

A Two-Fold Interpenetrated Dual-Emitting Luminescent Metal–Organic Framework as a Ratiometric Sensor for Chromium(III)

et al. 2021

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“…Lately, MOF/CP-based, fluorescence-sensory materials have been actively pursued as excellent platforms for the flourishing utilization in detection of Cr(III) and Cr(VI) ions though fluorescence quenching (turn off) effect [ 15 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 ]. However, there are still rare examples to achieve the detection of Cr(III) via the fluorescence enhancement (turn on) response [ 15 , 43 , 44 , 45 , 46 , 47 , 48 ] and fluorescence shift (ratiometric) effect [ 41 , 42 , 43 ].…”

Section: Introductionmentioning

confidence: 99%

A Water-Stable 2-Fold Interpenetrating cds Net as a Bifunctional Fluorescence-Responsive Sensor for Selective Detection of Cr(III) and Cr(VI) Ions

Tsai

Liao

2022

Nanomaterials

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Reactions of ZnSO4∙7H2O, N-(pyridin-3-ylmethyl)-4-(pyridin-4-yl)-1,8-naphthalimide (NI-mbpy-34), and 5-bromobenzene-1,3-dicarboxylic acid (Br-1,3-H2bdc) afforded a luminescent coordination polymer, [Zn(Br-1,3-bdc)(NI-mbpy-34)]n (1), under hydro(solvo)thermal conditions. Single-crystal X-ray structure analysis revealed that 1 features a three-dimensional (3-D) 2-fold interpenetrating cds (or CdSO4) net topology with the point symbol of (65·8), where the Zn(II) centers are considered as 4-connected square-planar nodes. X-ray powder diffraction (XRPD) patterns and thermogravimetric (TG) analysis confirmed that 1 shows high chemical and thermal stabilities. Notably, 1 displayed solvent dependent photoluminescence properties; the fluorescence intensity and emission maximum of 1 in different solvent suspensions varied when a solvent was changed. Furthermore, the H2O suspension of 1 exhibited blue fluorescence emission and thus can be treated as a selective and sensitive fluorescent probe for turn-on detection of Cr3+ cations through absorbance caused enhancement (ACE) mechanism and turn-off detection of Cr2O72−/CrO42− anions through collaboration of the absorption competition and energy transfer process, with limit of detection (LOD) as low as μM scale.

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“…Metal–organic frameworks (MOFs), also known as porous coordination polymers (PCPs), [ 1 ] are attracting increasing attention due to their unique structures and potential applications in the fields that include luminescence, magnetism, [ 2–4 ] storage/separation, [ 5–8 ] catalysis, [ 9–12 ] ion exchange, [ 13–15 ] and drug delivery. [ 16–18 ] As fluorescent probes for detecting cations, [ 1,19–21 ] anions, [ 22–26 ] biomarkers, [ 27–29 ] explosives, [ 30–34 ] and so forth, [ 35–37 ] they have attracted much attention due to their high sensitivity and efficiency. For cations, silver ions (Ag + ) have wide applications in various fields such as biomedicine and antibacterial manufacturing.…”

Section: Introductionmentioning

confidence: 99%

A {Zn₅} cluster‐based metal–organic framework: Multifunctional detection of Ag⁺, Cr₂O₇²⁻, and 2,4,6‐trinitrophenol (TNP)

Liu

Tao

et al. 2021

Applied Organom Chemis

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It is important to develop sensors that can be easily fabricated for the detection of harmful industrial wastes and nitroaromatic explosives to reduce the risks to human health and protect the environment. We report a new luminescent metal-organic framework (MOF), [Zn 5 (μ 3 -OH) 2 (TDA) 4 (4,4 0 -bpt) 2 ]n (1), (4,4 0 -bpt = 1H-3,5-bis-(4-pyridyl)-1,2,4-triazole, H 2 TDA = thiophene-2,-5-dicarboxylic acid), which was synthesized under solvothermal conditions and characterized using the PXRD, IR, TG, ICP-MS, mapping, and PL spectroscopic techniques. The {Zn 5 } MOF of (1) with Zn 5 cluster as the node, and 4,4 0bpt and TDA 2À as linkers, exhibited excellent thermal and chemical stabilities.Furthermore, 1 can serve as a sensitive and recyclable luminescent probe for the detection of Ag + , Cr 2 O 7 2À , and TNP with detection limits of 5.96, 4.34, and 1.59 μM, respectively.

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Turn-on fluorescence in a stable Cd(II) metal-organic framework for highly sensitive detection of Cr3+ in water

Cited by 25 publications

References 60 publications

A Two-Fold Interpenetrated Dual-Emitting Luminescent Metal–Organic Framework as a Ratiometric Sensor for Chromium(III)

A Two-Fold Interpenetrated Dual-Emitting Luminescent Metal–Organic Framework as a Ratiometric Sensor for Chromium(III)

A Water-Stable 2-Fold Interpenetrating cds Net as a Bifunctional Fluorescence-Responsive Sensor for Selective Detection of Cr(III) and Cr(VI) Ions

A {Zn₅} cluster‐based metal–organic framework: Multifunctional detection of Ag⁺, Cr₂O₇²⁻, and 2,4,6‐trinitrophenol (TNP)

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Turn-on fluorescence in a stable Cd(II) metal-organic framework for highly sensitive detection of Cr3+ in water

Cited by 25 publications

References 60 publications

A Two-Fold Interpenetrated Dual-Emitting Luminescent Metal–Organic Framework as a Ratiometric Sensor for Chromium(III)

A Two-Fold Interpenetrated Dual-Emitting Luminescent Metal–Organic Framework as a Ratiometric Sensor for Chromium(III)

A Water-Stable 2-Fold Interpenetrating cds Net as a Bifunctional Fluorescence-Responsive Sensor for Selective Detection of Cr(III) and Cr(VI) Ions

A {Zn5} cluster‐based metal–organic framework: Multifunctional detection of Ag+, Cr2O72−, and 2,4,6‐trinitrophenol (TNP)

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A {Zn₅} cluster‐based metal–organic framework: Multifunctional detection of Ag⁺, Cr₂O₇²⁻, and 2,4,6‐trinitrophenol (TNP)