A water-stable Tb(<scp>iii</scp>)-based metal–organic gel (MOG) for detection of antibiotics and explosives

Qin, Zhengsheng; Dong, Wen‐Wen; Zhao, Jun; Wu, Ya‐Pan; Zhang, Qichun; Li, Dongsheng

doi:10.1039/c7qi00495h

Cited by 257 publications

(82 citation statements)

References 48 publications

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“…Metal–organic gels (MOGs) are kinds of special multi‐functional supramolecular gel materials which are formed by introducing metal ions into organic gel systems . Similar to metal–organic frameworks, MOGs are mainly composed of organic ligands and inorganic metal ions.…”

Section: Introductionmentioning

confidence: 99%

A metal–organic gel‐based fluorescent chemosensor for selective Al³⁺ detection

Yang

Wang

et al. 2019

Applied Organom Chemis

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As an important metal element, aluminium has a significant impact on the environment and human health, and thus the detection of Al 3+ has become the subject of much research. We synthesized a Ni(II)-based metal-organic gel (Ni-MOG), which can serve as an Al 3+ fluorescence sensor with high selectivity and sensitivity, the limit of detection being calculated to be 0.5 μM. In addition, a composite film was further fabricated by hybridization of this Ni-MOG with poly(vinyl alcohol). The composite film produced a rapid fluorescence response to Al 3+ solutions at concentrations above 5 × 10 −5 M in 5 min. The Ni-MOG composite film can also be successfully applied for the sensitive detection of Al 3+ in real samples of tap water and seawater. The effective detection of Al 3+ described in this contribution provides a new insight into water quality monitoring and has promising application value.

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Section: Introductionmentioning

confidence: 99%

A metal–organic gel‐based fluorescent chemosensor for selective Al³⁺ detection

Yang

Wang

et al. 2019

Applied Organom Chemis

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“…Among luminescent MOFs, Ln-MOFs have huge advantages in sensing due to their fascinating luminescence characteristics, such as high luminescence quantum yield, long luminescent life time, high color purity, and big stoke shifts. The prominent luminescent properties and various structures of Ln-MOFs provide a facile and easy method for detection [ 24 , 25 , 26 ] such as metal ions [ 27 , 28 ], anions [ 29 , 30 , 31 , 32 ], small molecule [ 33 , 34 , 35 , 36 ], and temperature [ 37 , 38 ]. Due to the high coordination number and multiple coordination modes of lanthanide ions, the design and preparation of the desired lanthanide MOF is also a huge challenge.…”

Section: Introductionmentioning

confidence: 99%

A Novel Tb@Sr-MOF as Self-Calibrating Luminescent Sensor for Nutritional Antioxidant

Wang

Lin²,

Luo

et al. 2018

Nanomaterials

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Sesamol, is well-known antioxidant and can reduce the rate of oxidation and prolong expiration date. It is also potentially antimutagenic and antihepatotoxic, the detection of sesamol is important and remains a huge challenge. Herein, a new 3D alkaline earth Sr metal organic framework [Sr(BDC)·DMAC·H2O]n (BDC = benzene-1,4-dicarboxylate; DMAC = N,N-dimethylacetamide) is synthesized and a probe based on Tb3+ functionalized Sr-MOF. The Tb(3+)@Sr-MOF showed good luminescence and thermal property. Due to the energy competition between sesamol and ligand, the luminescence intensity of sesamol increases meantime luminescence intensity of Tb3+ decreases, the ratio of the emission intensities (I344/I545) linearly increases with sesamol in concentrations ranging from 1 × 10−7 to 8 × 10−4 M. Furthermore, the fluorescence-detected circular test shows that the composite Tb(3+)@Sr-MOF can serve as ratiometric sensor for sensing of sesamol. This is the first example for self-calibrated detecting sesamol based on metal-organic framework (MOF).

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“…[ 15, 16 ] Metal–organic frameworks (MOFs) are increasingly used as effective sensing materials because of their large specific surface area, thermal stability, adjustable structure and function, outstanding fluorescence properties and relatively long emission wavelengths. [ 17–20 ] Since the luminescent MOF material has the characteristics of long lifetime of excited state and high sensitivity, it has been considered by many researchers as the most promising chemical sensor. [ 17, 21–24 ] Many fluorescent MOF materials can detect heavy metal ions and organic pollutants in water quickly, conveniently and efficiently, [ 25 ] but there are few fluorescent MOF materials that can detect antibiotics and organic pollutants at the same time.…”

Section: Introductionmentioning

confidence: 99%

Highly Selective and Stable Zn (II)‐Based Metal–Organic Frameworks for the Detections of Tetracycline Antibiotic and Acetone in Aqueous System

Zhu

Zong

Zhang

et al. 2020

Applied Organom Chemis

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Tetracycline (TC) is one of the most widely used antibiotics in aquaculture, and its good water solubility makes it a major contaminant in seawater. Therefore, it is very necessary and challenging to develop an efficient detection method. In this work, two novel metal–organic frameworks [Zn (bpydb)(bimmb)0.5]n (1), {[Zn2(bpydb)2(bimb)]·[Zn (bpydb)(bimb)]·H2O}n (2), (bimb = 1,4‐bis (lmidazol) butane, H2bypdb = 4,4′‐(4,4’‐Bipyridine‐2,6‐diyl)dibenzoic acid, bimmb = 1,4‐bis (imidazol‐1‐ylmethyl)benzene) were successfully synthesized under solvothermal conditions. Zn‐MOF 1–2 were characterized by X‐ray powder diffraction (PXRD), Fourier transform infrared (FT‐IR) spectroscopy and thermogravimetric analysis (TGA). As expected, 1–2 have excellent fluorescence properties, thermal stability and good structural stability in water. TC in water can be detected by fluorescence quenching with high selectivity. At the same time, the fluorescence quenching efficiency remains unchanged in the presence of other interfering antibiotics and in aqueous solutions of different pH values (pH = 3–10). The detection ability of 1 in real seawater has not changed substantially, showing considerable practical application prospects. Interestingly, 1–2 also efficiently detected traces of acetone in solution with detection limits of 0.07 μM (4.38 ppb) and 0.18 μM (10.85 ppb), respectively. In addition, the mechanism of fluorescence quenching is further discussed.

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A water-stable Tb(iii)-based metal–organic gel (MOG) for detection of antibiotics and explosives

Abstract: A luminescent Tb-based metal organic gel was prepared by in situ metal node metathesis and it exhibited sensitive detection ability effectively towards antibiotics and explosives in water.

Cited by 257 publications

References 48 publications

A metal–organic gel‐based fluorescent chemosensor for selective Al³⁺ detection

A metal–organic gel‐based fluorescent chemosensor for selective Al³⁺ detection

A Novel Tb@Sr-MOF as Self-Calibrating Luminescent Sensor for Nutritional Antioxidant

Highly Selective and Stable Zn (II)‐Based Metal–Organic Frameworks for the Detections of Tetracycline Antibiotic and Acetone in Aqueous System

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A water-stable Tb(iii)-based metal–organic gel (MOG) for detection of antibiotics and explosives

Abstract: A luminescent Tb-based metal organic gel was prepared by in situ metal node metathesis and it exhibited sensitive detection ability effectively towards antibiotics and explosives in water.

Cited by 257 publications

References 48 publications

A metal–organic gel‐based fluorescent chemosensor for selective Al3+ detection

A metal–organic gel‐based fluorescent chemosensor for selective Al3+ detection

A Novel Tb@Sr-MOF as Self-Calibrating Luminescent Sensor for Nutritional Antioxidant

Highly Selective and Stable Zn (II)‐Based Metal–Organic Frameworks for the Detections of Tetracycline Antibiotic and Acetone in Aqueous System

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A metal–organic gel‐based fluorescent chemosensor for selective Al³⁺ detection

A metal–organic gel‐based fluorescent chemosensor for selective Al³⁺ detection