Topological control of metal–organic frameworks toward highly sensitive and selective detection of chromate and dichromate

Li, Zijian; Ju, Yu; Wu, Xiaoling; Li, Xiaoyun; Qiu, Jie; Li, Yongxin; Zhang, Zhihui; He, Ming‐Yang; Zhang, Linjuan; Wang, Jianqiang; Lin, Jian

doi:10.1039/d2qi02631g

Cited by 18 publications

(6 citation statements)

References 65 publications

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“…[ 25‐26 ] In addition, the access to large and high‐quality single crystals of Th‐MOFs is less challenging than those of other M 4+ ‐based MOFs, which facilitates the structural elucidation via single‐crystal X‐ray diffraction. [ 27‐28 ]…”

Section: Background and Originality Contentmentioning

confidence: 99%

Synthetic Control of Thorium Metal‐Organic Frameworks for Sequencing and Sensing of Radioiodine Species

Ju,

Li,

Wang

et al. 2023

Chin. J. Chem.

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Comprehensive SummaryExploring the physiochemical properties and expanding the applications of actinide‐containing materials is paramount to address the escalating challenge of radioactive waste accumulation. However, unlocking the full potential of these materials is largely crippled by the radiotoxicity of the actinides. We report here two porous and luminescent thorium‐based metal‐organic frameworks (Th‐BITD‐1 and Th‐BITD‐2) that serve as a bifunctional platform for sequencing and sensing of radioiodine, a much more radioactive fission product discharged during the nuclear fuel reprocessing. In particular, the resulting Th‐BITD‐1 displays better iodine uptake performance than Th‐BITD‐2 via the solution‐based process and vapor diffusion with the maximum adsorption capacities of 831 and 1099 mg/g, respectively. Furthermore, Th‐BITD‐1 can function as a highly sensitive luminescence sensor for iodate with a quenching constant (KSV) of 6.6(5)×103 M−1 and a detection limit of 2.02 μM, respectively, outperforming 2.96(6) ×103 M−1 and 10.5 μM of Th‐BITD‐2. Moreover, a positive correlation between the sensing efficacy and the iodate adsorption capacity has been revealed. This work highlights the opportunity in designing novel actinide‐based MOFs for their potential applications in radiological fields, e.g., radionuclide separation and detection.This article is protected by copyright. All rights reserved.

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Section: Background and Originality Contentmentioning

confidence: 99%

Synthetic Control of Thorium Metal‐Organic Frameworks for Sequencing and Sensing of Radioiodine Species

Ju,

Li,

Wang

et al. 2023

Chin. J. Chem.

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“…The topology of a metal–organic framework (MOF), namely the type of network structure, plays a crucial role in determining its stability, and its adsorption, separation, and catalytic properties. 1–4 Different topologies result in distinct pore shapes and sizes that can significantly impact guest adsorption and selectivity of the MOF toward particular adsorbates. 5 Similarly, topology can determine substrate and product diffusion rates and thereby catalytic properties.…”

Section: Introductionmentioning

confidence: 99%

Topological analysis and control of post-synthetic metalation sites in Zr-based metal–organic frameworks

Gimeno-Fonquernie,

Albalad,

Price

et al. 2024

J. Mater. Chem. C

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“…As an innovative category of crystalline porous materials, metal–organic frameworks (MOFs) provide distinctive properties owing to their fascinating topological properties and structural diversities leading to their numerous applications from drug delivery to luminescent sensing. − As a potential fluorescent probe, d 10 metal ion-based MOFs with luminescent properties have found widespread applications as luminescent sensors to detect heavy metal ions, − anions, − toxic organic pollutant molecules, − cancer markers, amino acids, − pesticides, − pharmaceuticals, − flame retardants, and biomolecules owing to their exceptional selectivity, sensitivity, rapid response time, and recyclability. , Nonetheless, the contemporary scientific community faces a challenging task in designing and developing MOF materials capable of serving as multiresponsive luminescent sensors for the simultaneous detection of flame retardants and antibiotics.…”

Section: Introductionmentioning

confidence: 99%

Zinc(II)-MOF: A Versatile Luminescent Sensor for Selective Molecular Recognition of Flame Retardants and Antibiotics

Rani,

Husain,

Bhasin

et al. 2024

Inorg. Chem.

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An exceptional Zinc(II)-organic framework with the formula [{Zn(L 4-py )(bdc)}•DMF] n (Zn-MOF) has been constructed solvothermally using a novel linker L 4-py {2,7-bis(3-(pyridin-4-ylethynyl)phenyl)benzo [lmn][3,8]phenanthroline-1,3,6,8(2H,7H)-tetraone}, coligand H 2 bdc (1,4-benzenedicarboxylic acid), and ZnBF 4 •xH 2 O. The ligand L 4-py has been fabricated after functionalization of NDA (1,4,5,8-naphthalenetetracarboxylic dianhydride) core with 3-(pyridin-4-ylethynyl)phenyl group. The single-crystal X-ray analysis reveals that Zn-MOF exhibits a comprehensive three-dimensional (3D) framework architecture and features (4)-connected uninodal dia; 4/6/c1; sqc6 topology with point symbol {6 6 } and two-dimensional (2D) + 2D, parallel polycatenation. Notably, Zn-MOF displayed excellent fluorescence phenomenon and stability in water as well as in methanol solvents and was harnessed as a versatile sensor, demonstrating selective and sensitive molecular recognition of flame retardants and antibiotics. Notably, Zn-MOF displayed 57 and 49.5% quenching efficiency for the flame-retardant pentabromophenol (PBP) and 3,3′,5,5′-tetrabromobisphenol A (TBPA), respectively. Whereas an outstanding 90% quenching efficiency was observed for antibiotics, tetracycline (TC) and secnidazole (SD). The mechanistic investigations of this luminescence quenching suggest that this might be primarily occurring via the Fourier resonance energy transfer (FRET) and photoinduced electron transfer (PET) mechanisms, which might be assisted by the competitive absorption and host−guest interactions. The π-electron-rich framework structure of sensor Zn-MOF activates this mechanism.

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Topological control of metal–organic frameworks toward highly sensitive and selective detection of chromate and dichromate

Abstract: Luminescent metal-organic frameworks (LMOFs) have been extensively used as sensitive and selective sensors for carcinogenic chromium (VI) oxyanions. However, understanding the correlation between the MOF structure and Cr(VI) sensing efficacy...

Cited by 18 publications

References 65 publications

Synthetic Control of Thorium Metal‐Organic Frameworks for Sequencing and Sensing of Radioiodine Species

Synthetic Control of Thorium Metal‐Organic Frameworks for Sequencing and Sensing of Radioiodine Species

Topological analysis and control of post-synthetic metalation sites in Zr-based metal–organic frameworks

Zinc(II)-MOF: A Versatile Luminescent Sensor for Selective Molecular Recognition of Flame Retardants and Antibiotics

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