Water-stable lanthanide-based metal–organic gel for the detection of organic amines and white-light emission

Gu, Dongxu; Yang, Weiting; Lin, Duoyu; Qin, Xudong; Yang, Yonghang; Wang, Fuxiang; Pan, Qinhe; Su, Zhong‐Min

doi:10.1039/d0tc03266b

Cited by 53 publications

(34 citation statements)

References 37 publications

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“…[ 22‐24 ] More and more luminescent metal–organic framework (LMOF) materials have been used as chemical sensors. [ 25‐29 ] Some have been reported to show excellent detection ability for TC, BZ and/or UA. [ 30‐36 ] However, multi‐ responsive luminescent MOF sensor for organic compounds is rather rare.…”

Section: Background and Originality Contentmentioning

confidence: 99%

A Highly Efficient Luminescent Metal–Organic Framework with Strong Conjugate Unit for Sensing Small Molecules

Chai

Zheng

et al. 2022

Chin. J. Chem.

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Comprehensive Summary Luminescent metal–organic frameworks (LMOFs) have become a promising class of fluorescence sensing materials, however, the multi‐responsive LMOF sensors for organic compounds are rather rare. Herein, a water stable and highly efficient luminescent MOF with the formula of {[Zn(BBZB)(2,6‐NDC)]·solvents}n (JXUST‐10, BBZB = 4,7‐bis(1H‐benzimidazole‐1‐yl)‐2,1,3‐benzothiadiazole and 2,6‐NDC = 2,6‐naphthalenedicarboxylate) was constructed by the incorporation of Zn2+ and two organic ligands (BBZB and 2,6‐NDC) featuring the conjugate system. JXUST‐10 is a three‐dimensional two‐fold interpenetrated framework with good fluorescent property. Based on the luminescent characteristic, JXUST‐10 can be used as a multi‐responsive sensor for detection of three different analytes including tetracycline, benzaldehyde and uric acid via different luminescent change behaviours. Remarkably, fluorescence test paper and LED light devices are used to detect analytes through the visual change of luminescence colour of JXUST‐10 from blue greenish to yellow greenish under ultraviolet light (365 nm) irradiation. Furthermore, the probable sensing mechanisms for three target analytes were also discussed.

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Section: Background and Originality Contentmentioning

confidence: 99%

A Highly Efficient Luminescent Metal–Organic Framework with Strong Conjugate Unit for Sensing Small Molecules

Chai

Zheng

et al. 2022

Chin. J. Chem.

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“…Metal–organic frameworks (MOFs) have potential application prospects in the fields of sensing, 1,2 catalysis, 3 magnetism, 4 proton conduction 5 and gas adsorption and separation 6,7 due to the abundant topological networks, 8 high specific surface area 9 and adjustable optical properties. 10 Single-crystal-to-single-crystal (SCSC) conversion is an effective way to reconstruct the structures of MOFs 11 accompanied by the changes of coordination bonds, dimensions and porosity.…”

Section: Introductionmentioning

confidence: 99%

“…[36][37][38] 2,1,3-Benzothiadiazole (BTD) is a chromophore and an electron withdrawing group, with rich photophysical and photochemical properties, and its derivatives have broad prospects in the field of molecular luminescent probes. [39][40][41][42] Herein, 5,5′-(benzo[c] [1,2,5]thiadiazole-4,7-diyl)diisophthalic acid (H 4 BTDI) was chosen as the primary ligand and a three-dimensional (3D) Tb III…”

Section: Introductionmentioning

confidence: 99%

Temperature- and solvent-induced reversible single-crystal-to-single-crystal transformations of Tb^III-based MOFs with excellent stabilities and fluorescence sensing properties toward drug molecules

Liu

Chai

et al. 2022

Inorg. Chem. Front.

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“…Therefore, supramolecular lanthanide-based metallogels have captured more frequent attention in optical detection. Besides, it has also been fabricated and applied as chemical sensors for organic pollutants, amino acids, nitro explosives, and antibiotics. − However, they monitor the intensity changes of single-signal fluorescence, and its accuracy is greatly affected by external conditions such as instruments, the concentration of lanthanide-based metallogels, and competitive analytes. Recently, many organic–inorganic hybrid materials with dual emission signals have been used as ratiometric luminescence sensors to detect temperature, pH, antibiotics, and small organic molecules, providing easily distinguishable color and intensity changes. − Furthermore, there is no report on the application of a lanthanide-based supramolecular metallogel which plays the role of a ratiometric and colorimetric luminescence sensor for methanol identification especially in the presence of ethanol.…”

Section: Introductionmentioning

confidence: 99%

Self-Assembly of Lanthanide-Based Metallogel Nanoplates into Microcubic Blocks as Self-Calibrating Luminescent Methanol Sensors

Yang

Liu

Zhong

et al. 2021

ACS Appl. Nano Mater.

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Because of the serious physiological toxicity of methanol, detection of methanol in ethanol medium is tremendously significant. Herein, excellent luminescent lanthanide-based supramolecular metallogels were prepared with the conventional low-molecular-weight-gelator 1,3,5-benzenetricarboxylic acid (BTC) and the lanthanide trivalent cations (Tb 3+ and Eu 3+ ), which exhibit distinctive characteristic photoluminescent emission of lanthanides. These metallogels were synthesized depending on the one-step method of a high-concentration reaction synergized with heat-assisted ultrasound. The mechanical characteristics of the supramolecular metallogels were investigated through a rheological study. The scanning electron microscopy study revealed the supramolecular interconnection structure of microcubic blocks formed through irregular self-assembly of nanoplates. The bi-metallogel (Eu/Tb-G) with an obvious brilliant yellow emission signal was favorably fabricated via utilizing the lanthanide co-doping strategy and manifests the characteristic emission bands of lanthanide trivalent ions (Eu 3+ and Tb 3+ ) simultaneously. The energy-transfer behavior between Tb 3+ and Eu 3+ was systematically studied. What is striking is that methanol facilitates the increase of Tb 3+ fluorescence intensity without affecting the characteristic emission of Eu 3+ , and this phenomenon induces a unique emission proportion between Tb 3+ and Eu 3+ ions. Inspired by this, a self-calibrated fluorescence sensor of methanol is acquired, which adopts the dynamic emission of Tb 3+ that can vary continuously and regularly as the target identification detection signal and utilizes the static emission of Eu 3+ as the internal reference system. The change of fluorescence lifetime and quantum yield confirmed that this obvious visual optical color signal varying phenomenon can be ascribed to the internal energy-transfer process conversion caused by the unique host−quest interaction between methanol and Eu/Tb-G. In addition, the prepared Eu/Tb-G paper-based sensor has good stimulation response and recyclability to methanol vapor. The above discussion can establish Eu/Tb-G as a ratiometric and colorimetric fluorescent sensor for the detection of methanol and its vapor.

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Water-stable lanthanide-based metal–organic gel for the detection of organic amines and white-light emission

Abstract: The highly luminous lanthanide metal−organic gels (Ln-MOGs) can act as fluorescent probes for the detection of organic amines and can also be used to build white-light emitting materials according to...

Cited by 53 publications

References 37 publications

A Highly Efficient Luminescent Metal–Organic Framework with Strong Conjugate Unit for Sensing Small Molecules

A Highly Efficient Luminescent Metal–Organic Framework with Strong Conjugate Unit for Sensing Small Molecules

Temperature- and solvent-induced reversible single-crystal-to-single-crystal transformations of Tb^III-based MOFs with excellent stabilities and fluorescence sensing properties toward drug molecules

Self-Assembly of Lanthanide-Based Metallogel Nanoplates into Microcubic Blocks as Self-Calibrating Luminescent Methanol Sensors

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Water-stable lanthanide-based metal–organic gel for the detection of organic amines and white-light emission

Abstract: The highly luminous lanthanide metal−organic gels (Ln-MOGs) can act as fluorescent probes for the detection of organic amines and can also be used to build white-light emitting materials according to...

Cited by 53 publications

References 37 publications

A Highly Efficient Luminescent Metal–Organic Framework with Strong Conjugate Unit for Sensing Small Molecules

A Highly Efficient Luminescent Metal–Organic Framework with Strong Conjugate Unit for Sensing Small Molecules

Temperature- and solvent-induced reversible single-crystal-to-single-crystal transformations of TbIII-based MOFs with excellent stabilities and fluorescence sensing properties toward drug molecules

Self-Assembly of Lanthanide-Based Metallogel Nanoplates into Microcubic Blocks as Self-Calibrating Luminescent Methanol Sensors

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Temperature- and solvent-induced reversible single-crystal-to-single-crystal transformations of Tb^III-based MOFs with excellent stabilities and fluorescence sensing properties toward drug molecules