A hydrolytically stable europium–organic framework for the selective detection of radioactive Th<sup>4+</sup> in aqueous solution

Song, Liping; Liu, Wei; Wang, Yanlong; Chen, Lanhua; Wang, Shuao

doi:10.1039/c9ce00241c

Cited by 14 publications

(5 citation statements)

References 39 publications

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“…However, only two examples of LMOF-based probes for Th 4+ ion detecting have so far been published. In 2019, the authors of [ 95 ] designed a 3D MOF, [Eu 2 (FDC) 3 (DMA) 2 ]·4H 2 O, with excellent hydrolytic stability by using 2,5-furan dicarboxylic acid (2,5-H 2 FDC) as an organic linker. [Eu 2 (FDC) 3 (DMA) 2 ]·4H 2 O presented excellent sensing ability toward the Th 4+ ion in water with the 5 D 0 lifetime as long as 1.087 ms.…”

Section: Lmofs For Hazardous Materials Detectingmentioning

confidence: 99%

Recent Progress in Metal-Organic Framework Based Fluorescent Sensors for Hazardous Materials Detection

et al. 2022

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Population growth and industrial development have exacerbated environmental pollution of both land and aquatic environments with toxic and harmful materials. Luminescence-based chemical sensors crafted for specific hazardous substances operate on host-guest interactions, leading to the detection of target molecules down to the nanomolar range. Particularly, the luminescence-based sensors constructed on the basis of metal-organic frameworks (MOFs) are of increasing interest, as they can not only compensate for the shortcomings of traditional detection techniques, but also can provide more sensitive detection for analytes. Recent years have seen MOFs-based fluorescent sensors show outstanding advantages in the field of hazardous substance identification and detection. Here, we critically discuss the application of MOFs for the detection of a broad scope of hazardous substances, including hazardous gases, heavy metal ions, radioactive ions, antibiotics, pesticides, nitro-explosives, and some harmful solvents as well as luminous and sensing mechanisms of MOF-based fluorescent sensors. The outlook and several crucial issues of this area are also discussed, with the expectation that it may help arouse widespread attention on exploring fluorescent MOFs (LMOFs) in potential sensing applications.

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Section: Lmofs For Hazardous Materials Detectingmentioning

confidence: 99%

Recent Progress in Metal-Organic Framework Based Fluorescent Sensors for Hazardous Materials Detection

et al. 2022

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“…Metal–organic frameworks (MOFs), as one of the research hotspots over the past few years, are a sort of self-assembly supermolecular crystalline porous materials. − MOF is usually centered on metal ions or clusters to combine a periodic framework with organic ligands. For multiple articles reported, due to its well-developed porosity, high surface area, and tunable uniform pore size, MOF shows great potential application prospect, such as drug loading, , gas adsorption, storage and separation, , heterogeneous catalysis, − chemical sensing, − and bioimaging. , …”

Section: Introductionmentioning

confidence: 99%

Highly Selective and Sensitive Detection of PO₄^3– Ions in Aqueous Solution by a Luminescent Terbium Metal–Organic Framework

et al. 2019

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A luminescent terbium metal–organic framework [Tb(HPIA–)(PIA2–)(H2O)2] (Tb-MOF), synthesized by a lanthanide metal ion (Tb3+) and nitric heterocyclic carboxylic acid ligands H2PIA (H2PIA = 5-(1H-pyrazol-3-yl)isophthalic-acid), was structurally characterized as a three-dimensional skeleton structure in which layered coordination frameworks are connected by hydrogen bonds. Based on the antenna effect, Tb-MOF can emit bright green fluorescence under 254 nm excitation, and the fluorescence emission presents excellent durability in aqueous solutions among a wide pH range. Moreover, the structure of Tb-MOF also possesses outstanding thermal stabilities. In some ways, PO43– and its derivatives are thought to be a kind of pollutant ion causing series environmental and health problems. The as-synthesized Tb-MOF exhibits prominent selectivity and remarkable sensitivity for detecting PO43– as an easy-to-use fluorescent probe with low detection limit, fast response, and wide detection range. Therefore, Tb-MOF has significant applications in the fields of human health and environmental monitoring.

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“…The emission intensity of the free CFBS-ligand increases with increasing pH value due to the enhanced electrostatic interaction between the deprotonated form of the CFBS-ligand and Th(IV) ions. At pH values lower than 3.5, the protonation of the functional groups of the CFBS-ligand occurred, leading to decreasing interaction between the CFBS-ligand and Th(IV) ions; thus, the emission intensity decreased . On the other hand, the emission intensity of the CFBS-ligand was also reduced at pH values above 3.5.…”

Section: Resultsmentioning

confidence: 99%

“…At pH values lower than 3.5, the protonation of the functional groups of the CFBS-ligand occurred, leading to decreasing interaction between the CFBS-ligand and Th(IV) ions; thus, the emission intensity decreased. 31 On the other hand, the emission intensity of the CFBS-ligand was also reduced at pH values above 3.5. This behavior might be due to the breaking of intramolecular hydrogen bonds.…”

Section: Synthesis Of (Z)-n-carbamimidoyl-4-((3-phenylnaphtho-[12-b]f...mentioning

confidence: 99%

Detection and Selective Removal Strategy of Thorium Ions Using a Novel Fluorescent Ligand and Hybrid Mesoporous γ-Al₂O₃-like Nanoneedles

Gomaa

Emran

Elsenety

et al. 2023

ACS Sustainable Chem. Eng.

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Long-term exposure to radioactive elements through water, such as thorium ions, has undesirable impacts and may cause serious health problems like cancer. Therefore, this manuscript originally targets detection and elimination of thorium ions from water samples, even at trace concentrations. Herein, a novel ligand, (Z)-N-carbamimidoyl-4-((3-phenylnaphtho[1,2-b]furan-5-yl)diazenyl)benzenesulfonamide (CFBS), was synthesized for fluorometric detection of thorium ions. Then, the prepared CFBS-ligand was well-immobilized and grafted with mesoporous γ-Al2O3-like nanoneedles to prepare a hybrid mesoporous γ-Al2O3-like nanoneedles (CFBS@AlNNs) adsorbent. The CFBS@AlNNs adsorbent was employed to adsorb and remove thorium ions from an aqueous solution. The results indicated that trace concentrations of thorium ions could be detected and removed with good sensitivity and selectivity. The findings confirmed superior adsorption efficiency (98%) and capacity (142 mg/g) of used CFBS@AINNs toward Th(IV) ions at pH 4. The mechanism of Th(IV)-adsorption was explained mathematically through kinetic studies, isotherm models, and computational studies. One of the key advantages of CFBS@AlNNs is its thorium selectivity even in the presence of other coexisting ions. The CFBS@AlNN design showed significant thorium-removal/adsorption capacity, although multiple reuse/recycling followed a simple desorption process. Given its high selectivity, fast diffusion, and highly efficient adsorption, the CFBS@AlNNs sorbent can be considered a potential adsorbent to remove and recover thorium ions from various water samples and can be used to prevent the health risks related to the long-term and direct exposition of thorium ions.

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A hydrolytically stable europium–organic framework for the selective detection of radioactive Th⁴⁺ in aqueous solution

Abstract: Thorium is not only a promising candidate for developing next generation nuclear fuel but also a potential radioactive contaminant.

Cited by 14 publications

References 39 publications

Recent Progress in Metal-Organic Framework Based Fluorescent Sensors for Hazardous Materials Detection

Recent Progress in Metal-Organic Framework Based Fluorescent Sensors for Hazardous Materials Detection

Highly Selective and Sensitive Detection of PO₄^3– Ions in Aqueous Solution by a Luminescent Terbium Metal–Organic Framework

Detection and Selective Removal Strategy of Thorium Ions Using a Novel Fluorescent Ligand and Hybrid Mesoporous γ-Al₂O₃-like Nanoneedles

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A hydrolytically stable europium–organic framework for the selective detection of radioactive Th4+ in aqueous solution

Abstract: Thorium is not only a promising candidate for developing next generation nuclear fuel but also a potential radioactive contaminant.

Cited by 14 publications

References 39 publications

Recent Progress in Metal-Organic Framework Based Fluorescent Sensors for Hazardous Materials Detection

Recent Progress in Metal-Organic Framework Based Fluorescent Sensors for Hazardous Materials Detection

Highly Selective and Sensitive Detection of PO43– Ions in Aqueous Solution by a Luminescent Terbium Metal–Organic Framework

Detection and Selective Removal Strategy of Thorium Ions Using a Novel Fluorescent Ligand and Hybrid Mesoporous γ-Al2O3-like Nanoneedles

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A hydrolytically stable europium–organic framework for the selective detection of radioactive Th⁴⁺ in aqueous solution

Highly Selective and Sensitive Detection of PO₄^3– Ions in Aqueous Solution by a Luminescent Terbium Metal–Organic Framework

Detection and Selective Removal Strategy of Thorium Ions Using a Novel Fluorescent Ligand and Hybrid Mesoporous γ-Al₂O₃-like Nanoneedles