A nanostructured LUS-1 based organic–inorganic hybrid optical sensor for highly selective sensing of Fe3+ in water

Karimi, Mehdi; Badiei, Alireza; Lashgari, Negar; Afshani, Jafar; Ziarani, Ghodsi Mohammadi

doi:10.1016/j.jlumin.2015.07.007

Cited by 22 publications

(2 citation statements)

References 38 publications

(38 reference statements)

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“…Upon the addition of Zn 2+ ions, the fluorescence of MSNs‐QNL‐1 was enhanced ≈3‐fold, and meanwhile a blueshift of ≈25 nm from the peak located at 490 nm and a redshift of ≈20 nm from the peak located at 390 nm were observed. The MSNs‐QNL‐2 sensor was made via postgrafting of 8‐hydroxy‐5‐quinoline sulfonic acid onto the surface of MSNs and used for the detection of Fe 3+ . MSNs‐QNL‐2 (0.4 g L −1 in water) showed intense emission at 468 nm (λ ex = 240 nm) that could be quenched efficiently in the presence of Fe 3+ ions (100 µL, 1 × 10 −2 m ) due to the paramagnetic quenching mechanism.…”

Section: Sio2‐based Hybrid Materialsmentioning

confidence: 99%

Design of Multifunctional Fluorescent Hybrid Materials Based on SiO₂ Materials and Core–Shell Fe₃O₄@SiO₂ Nanoparticles for Metal Ion Sensing

Chatterjee

Liang

et al. 2019

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Hybrid fluorescent materials constructed from organic chelating fluorescent probes and inorganic solid supports by covalent interactions are a special type of hybrid sensing platform that has gained much interest in the context of metal ion sensing applications owing to their excellent advantages, recyclability, and solubility/dispersibility in particular, as compared with single organic fluorescent molecules. In recent decades, SiO2 materials and core–shell Fe3O4@SiO2 nanoparticles have become important inorganic solid materials and have been used as inorganic solid supports to hybridize with organic fluorescent receptors, resulting in multifunctional fluorescent hybrid systems for potential applications in sensing and related research fields. Therefore, recent progress in various fluorescent‐group‐functionalized SiO2 materials is reviewed, with a focus on mesoporous silica nanoparticles and core–shell Fe3O4@SiO2 nanoparticles, as interesting fluorescent organic–inorganic hybrid materials for sensing applications toward essential and toxic metal ions. Selective examples of other types of silica/silicon materials, such as periodic mesoporous organosilicas, solid SiO2 nanoparticles, fibrous silica spheres, silica nanowires, silica nanotubes, and silica hollow microspheres, are also mentioned. Finally, relevant perspectives of metal‐ion‐sensing‐oriented silica‐fluorescent probe hybrid materials are provided.

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Section: Sio2‐based Hybrid Materialsmentioning

confidence: 99%

Design of Multifunctional Fluorescent Hybrid Materials Based on SiO₂ Materials and Core–Shell Fe₃O₄@SiO₂ Nanoparticles for Metal Ion Sensing

Chatterjee

Liang

et al. 2019

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“…As a part of our ongoing research on the design of fluorescent probes for ions [ 41 , 43 , 67 , 68 , 69 , 70 , 71 , 72 ], a novel acenaphtoquinoxaline containing fluorescent probe was designed and synthesized through acidic mesoporous catalyst SBA-Pr-SO 3 H and also examined for ion detection compared to other chemical receptors. Furthermore, the computational studies implementing DFT calculations were used to justified the experimental observations for probable binding modes studies.…”

Section: Introductionmentioning

confidence: 99%

Acenaphtoquinoxaline as a selective fluorescent sensor for Hg (II) detection: experimental and theoretical studies

Darroudi

Ziarani

Ghasemi

et al. 2020

Heliyon

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A new fluorescent chemosensor based on quinoxaline was successfully synthesized through a facile and green catalytic reaction of ortho-phenylenediamine (O-PDA) and acenaphthylene-1,2-dione in the presence of SBA-Pr-SO 3 H. Prepared a "switch-off" quinoxaline-based receptor to recognized Hg 2þ ion in high selectively and, without any interference from other metal ions, was developed. The photophysical behavior of this fluorophore was studied in acetonitrile by using fluorescence spectra. The fluorescence properties of several cations to acenaphtoquinoxaline were investigated in acetonitrile, and the competition test displayed that the probe fluorescence changes were specific for Hg 2þ ion. The obtained results have shown high selectivity and sensitivity only for Hg 2þ. Also, the detection limit was as low as 42 ppb, and a top linear trend was observed between the concentration of Hg 2þ ions and fluorescence intensity. The binding stoichiometry between chemosensor L and Hg 2þ was found to be 1:1. Moreover, a computational study was performed to obtain an electronic description of the fluorescence emission and quenching mechanisms. The optimized structures and binding mechanisms were supported with a high correlation and agreement by spectroscopy and DFT calculations.

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Chemosensing hybrid materials: Chalcones‐functionalized cage‐like mesoporous SBA‐16 material for highly selective detection of toxic metal ions

El‐Nahass

Fayed

2017

Applied Organom Chemis

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Highly selective and low‐cost optical nanosensors of organic–inorganic hybrid materials for heavy metal ions detection have been prepared via the functionalization of mesoporous silica (SBA‐16) with chalcone fluorescent chromophores. The successful attachment of organic chalcone moieties and preservation of original structure of SBA‐16 after the anchoring process were confirmed by extensive characterizations using various techniques like Fourier transform infrared and UV–visible spectroscopies, transmission electron microscopy, nitrogen adsorption–desorption isotherms, low‐angle X‐ray diffraction and thermogravimetric analysis. The colorimetric behaviour, selectivity and sensitivity were also investigated. The optical nanosensors respond selectively to heavy metal ions, such as Mn2+, Fe3+, Co2+, Ni2+, Cu2+, Zn2+, Cd2+ and Hg2+, with observable colour changes in 0.01 M Tris–HCl aqueous buffer solution. Also, the optical sensing ability of the investigated nanosensors to the mentioned metal ions was investigated using steady‐state absorption and emission techniques. Significant increase in the absorption spectra and a static quenching in the emission spectra are observed upon adding various concentrations of the studied metal ions. The spectral changes as well as the observable colour changes suggest that the investigated nanosensors are suitable for simple, economic, online analysis and remote design of these toxic metal ions with fast kinetic responses. Finally, the low detection limits for all the studied metals are in good agreement with those recommended by both the US Environmental Protection Agency and World Health Organization, except for Hg2+ and Cd2+, indicating that the investigated nanosensors have hypersensitivity, selectivity and better recognition for all the studied metal ions.

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A nanostructured LUS-1 based organic–inorganic hybrid optical sensor for highly selective sensing of Fe3+ in water

Cited by 22 publications

References 38 publications

Design of Multifunctional Fluorescent Hybrid Materials Based on SiO₂ Materials and Core–Shell Fe₃O₄@SiO₂ Nanoparticles for Metal Ion Sensing

Design of Multifunctional Fluorescent Hybrid Materials Based on SiO₂ Materials and Core–Shell Fe₃O₄@SiO₂ Nanoparticles for Metal Ion Sensing

Acenaphtoquinoxaline as a selective fluorescent sensor for Hg (II) detection: experimental and theoretical studies

Chemosensing hybrid materials: Chalcones‐functionalized cage‐like mesoporous SBA‐16 material for highly selective detection of toxic metal ions

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A nanostructured LUS-1 based organic–inorganic hybrid optical sensor for highly selective sensing of Fe3+ in water

Cited by 22 publications

References 38 publications

Design of Multifunctional Fluorescent Hybrid Materials Based on SiO2 Materials and Core–Shell Fe3O4@SiO2 Nanoparticles for Metal Ion Sensing

Design of Multifunctional Fluorescent Hybrid Materials Based on SiO2 Materials and Core–Shell Fe3O4@SiO2 Nanoparticles for Metal Ion Sensing

Acenaphtoquinoxaline as a selective fluorescent sensor for Hg (II) detection: experimental and theoretical studies

Chemosensing hybrid materials: Chalcones‐functionalized cage‐like mesoporous SBA‐16 material for highly selective detection of toxic metal ions

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Design of Multifunctional Fluorescent Hybrid Materials Based on SiO₂ Materials and Core–Shell Fe₃O₄@SiO₂ Nanoparticles for Metal Ion Sensing

Design of Multifunctional Fluorescent Hybrid Materials Based on SiO₂ Materials and Core–Shell Fe₃O₄@SiO₂ Nanoparticles for Metal Ion Sensing