Recent progress of radionuclides separation by porous materials

Science China Chemistry, Journal Year: 2024, Volume and Issue: 67(11), P. 3515 - 3577

Published: Sept. 26, 2024

Language: Английский

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A dual‐responsive luminescent sensor for efficient detection of 3‐nitrotyrosine and dipicolinic acid biomarkers based on copper(II) organic framework

Applied Organometallic Chemistry, Journal Year: 2024, Volume and Issue: 38(6)

Published: March 26, 2024

The trace detection of biomarkers in real samples has profound a most important significance the early diagnosis and daily monitoring diseases. Based on ligand pre‐design strategy, novel 3D CuMOF, with formula {[Cu 4 (BTPB)( μ 2 ‐OH) (H O) 5 ]·3H O} n , was fabricated by using hexacarboxyl 1,4‐bis(2,4,6‐tricarboxylpyrid‐5‐yl)benzene 6 BTPB) tetranuclear {Cu (COO) ( } SBUs. Benefiting from robust framework unique luminescence performance, prepared CuMOF displays great potential as dual‐responsive efficient luminescent sensor “turn‐off” 3‐nitrotyrosine (3‐NT) biomarker “turn‐on” detecting anthrax dipicolinic acid (DPA), limits (LOD) for 3‐NT DPA being 110.8 ng/ml 85.2 ng/ml, respectively. Additionally, practicality compatibility such developed sensors were verified quantifying diluted serum urine satisfactory recoveries. Further, theoretical calculations energy levels well spectral overlap between analytes conducted to elucidate possible sensing mechanisms. This work demonstrated that MOFs‐based are evolving an efficacious equable approach samples.

Language: Английский

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Pendent carboxylic acid-fuelled high-performance uranium extraction in a hydrogen-bonded framework and prolifically improved water oxidation via post-metalation-actuated composite fabrication

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(6), P. 3501 - 3512

Published: Jan. 1, 2024

Employing a functionality scissoring approach, hydrogen-bonded MOF shows selective and regenerable uranium extraction alongside exceptionally improved electrochemical oxygen evolution via post-metalation.

Language: Английский

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Fluorescent Eu-MOF@nanocellulose-based nanopaper for rapid and sensitive detection of uranium (Ⅵ)

Analytica Chimica Acta, Journal Year: 2024, Volume and Issue: 1292, P. 342211 - 342211

Published: Jan. 3, 2024

Language: Английский

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Room-temperature aqueous synthesis of MOF-808(Zr) for selective adsorption of dye mixtures

Separation and Purification Technology, Journal Year: 2023, Volume and Issue: 333, P. 125957 - 125957

Published: Dec. 6, 2023

Language: Английский

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Carboxymethyl cellulose aerogel decorated MOF-808 with defects via mixed-metallic center and etching for enhanced Pb(II) removal

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 344, P. 127262 - 127262

Published: March 27, 2024

Language: Английский

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Dual-emissive europium doped UiO-66-based ratiometric light-up biosensor for highly sensitive detection of histidinemia biomarker

Analytica Chimica Acta, Journal Year: 2024, Volume and Issue: 1290, P. 342202 - 342202

Published: Jan. 1, 2024

Language: Английский

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Mechanistical Insights into the Ultrasensitive Detection of Radioactive and Chemotoxic UO₂²⁺ Ions by a Porous Anionic Co-Metal–Organic Framework

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(22), P. 10403 - 10413

Published: May 18, 2024

Development of a simple, cost-efficient, and portable UO22+ sensory probe with high selectivity sensitivity is highly desirable in the context monitoring radioactive contaminants. Herein, we report luminescent Co-based metal–organic framework (MOF), {[Me2NH2]0.5[Co(DATRz)0.5(NH2BDC)]·xG}n (1), equipped abundant amino functionalities for selective detection uranyl cations. The ionic structure consists two types channels decorated plentiful Lewis basic moieties, which trigger stronger acid–base interaction diffused cationic units thus can selectively quench fluorescence intensity presence other interfering ions. Furthermore, limit sensing was achieved to be as low 0.13 μM (30.94 ppb) rapid responsiveness multiple recyclabilities, demonstrating its excellent efficacy. Density functional theory (DFT) calculations further unraveled preferred binding sites ions tubular channel MOF structure. Orbital hybridization between NH2BDC/DATRz together significantly large electron-accepting ability identified responsible luminescence quenching. More importantly, prepared 1@PVDF {poly(vinylidene difluoride)} mixed-matrix membrane (MMM) displayed good activity comparable 1, great significance their practical employment MOF-based luminosensors real-world application.

Language: Английский

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Dual-Color Visual Ratiometric Fluorescence Sensing for H₂O and D₂O Mixtures Using a Hexanuclear Ln(III) Cluster-Based Metal–Organic Framework

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(9), P. 4269 - 4278

Published: Feb. 19, 2024

High-purity heavy water (D2O) is a strategic material owing to its important application in the fields of nuclear energy and scientific research. D2O always tends get contaminated by H2O strong hygroscopicity. Herein, bimetallic hexanuclear Ln(III) cluster-based metal–organic framework (Eu0.5Tb0.5-TZB-MOF) has been synthesized for fluorescence sensing D2O–H2O binary mixtures. Eu0.5Tb0.5-TZB-MOF can be used immediately differentiate or via fluorescent color responses that are obvious naked eye allow quantitative ratiometric analysis using simple spectrophotometry. Fluorescence titration experiments demonstrate both trace quantitatively detected. Mechanistic studies weaker vibrational quenching O–D oscillator compared O–H oscillator, addition terbium-to-europium transfer, triggered signal response.

Language: Английский

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Design, Preparation, Characterization, Density Functional Theory, and HOMO‐LUMO Perspective of Fe₃O₄@SiO₂‐Pr‐NH‐IC as a New Nanomagnetic Chemosensor

Applied Organometallic Chemistry, Journal Year: 2025, Volume and Issue: 39(2)

Published: Jan. 12, 2025

ABSTRACT In this research, the Fe 3 O 4 @SiO 2 ‐Pr‐NH‐IC magnetic nanoparticles (MNPs) were synthesized based on nanoparticles. Initially, was coated with tetraethylorthosilicate (TEOS) to produce , which functionalized by reaction 3‐aminopropyl three‐methoxy silane (APTMS) yield ‐Pr‐NH followed treatment indole‐3‐carbaldehyde (IC) obtain as target hybrid organic and inorganic material. The analyzed using photoluminescence spectroscopy. It shown that compound can selectively detect Al 3+ ions in aqueous media among various cations, a limit of detection (LOD) 2.47 × 10 −6 M. Comprehensive DFT calculations carried out utilizing B3LYP functional conjunction 6‐311g (d,p) LANL2DZ basis sets analyze ground state system. To elucidate interaction mechanism, MEP map generated, full geometry optimization performed. Additionally, electronic properties chemical reactivity examined through HOMO‐LUMO analysis at same computational level. findings revealed incorporation ion significantly enhances Pr‐NH‐IC + complex comparison free structure. These suggest has significant potential for development advanced sensor systems selective environments. Future research could focus modification nanostructure enhance its sensitivity selectivity toward other environmentally biologically relevant metal ions. integration material into portable sensing devices or real‐time system pave way practical applications environmental monitoring water quality assessment.

Language: Английский

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