A tetradecylphosphonium compounds–based membrane sensor for potentiometric quantitation of pertechnetate-ions in cementitious radioactive waste

Kopytin, A. V.; German, K. É.; Zhizhin, K. Yu.; Safonov, Alexey; Zhukov, A.F.; Shpigun, L. K.

doi:10.1016/j.snb.2020.127853

Cited by 5 publications

(3 citation statements)

References 14 publications

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“…8,9 Unfortunately, due to the low charge density and none characteristic spectral signature, the rapid, sensitive, and selective recognition of TcO 4 − /ReO 4 − poses a great challenge. 10−12 To address this challenge, various approaches have been developed to the monitoring of TcO 4 − /ReO 4 − , including spectroelectrochemical method, 13,14 inductively coupled plasma mass spectrometry, 15 liquid scintillation counting (LSC), 16 Raman spectroscopy, 17 and fluorescence spectroscopy. 18,19 Compared with other methods, fluorescence is considered as a superior analytical technique due to its high sensitivity, costeffectiveness, and convenience.…”

Section: ■ Introductionmentioning

confidence: 99%

“…To address this challenge, various approaches have been developed to the monitoring of TcO 4 – /ReO 4 – , including spectroelectrochemical method, , inductively coupled plasma mass spectrometry, liquid scintillation counting (LSC), Raman spectroscopy, and fluorescence spectroscopy. , Compared with other methods, fluorescence is considered as a superior analytical technique due to its high sensitivity, cost-effectiveness, and convenience. − However, only a few of fluorescent probes were reported due to the noncomplexing nature and no fluorescence spectral signature of TcO 4 – /ReO 4 – . Recently, Desai et al utilized the reaction of ReO 4 – with the cationic ultrafast molecular rotor dye auramine O to form fluorescent polymeric ion pairs for the detection of ReO 4 – in a turn-on manner .…”

Section: Introductionmentioning

confidence: 99%

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Tailor-Made Multiple Interpenetrated Metal–Organic Framework for Selective Detection and Adsorption of ReO₄^–

Gao

Shi

et al. 2022

Anal. Chem.

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Rationally designed new materials for the selective detection and adsorption of 99Tc, a problematic element in nuclear waste, are important and challenging in environmental monitoring. Here, we utilize an interpenetration approach to develop a cationic fluorescent metal–organic framework (NCU-2), which was constructed by a flexible tridentate nitrogen-containing ligand and Ag+ metal ions. The NCU-2 is a scarce case of 14-fold interpenetrated with excellent chemical stability even under 0.5 M HNO3, which is helpful for the detection and removal of ReO4 –/TcO4 – from nuclear waste. Excitingly, the fluorescence signal of NCU-2 was obviously quenched in the presence of ReO4 – (a nonradioactive surrogate of TcO4 –) due to the robust interaction between ReO4 – and the host for the formation of a non-fluorescent complex. Furthermore, the NCU-2 exhibits a high selectivity sensing of ReO4 – in the presence of excess competitive ions. The superior response of NCU-2 toward ReO4 – is ascribed to the high-fold structure and the luxuriant unsaturated Ag metal sites on the wall of 1D pore channels, which can enhance the framework positive charge and accelerate the transport of guest molecules to strengthen the interaction between them. Notably, NCU-2 successfully quantified trace levels of ReO4 – in simulated Hanford waste with a broad linear range (0.2–200 μM) and a low detection limit of 66.7 nM. Moreover, NCU-2 also shows a high adsorption capacity to ReO4 – (541 mg/g) and rapid sorption kinetics, making it extremely attractive for waste monitoring and emergency remediation.

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Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Tailor-Made Multiple Interpenetrated Metal–Organic Framework for Selective Detection and Adsorption of ReO₄^–

Gao

Shi

et al. 2022

Anal. Chem.

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“…Kopytina et al used a tetradecylphosphonium salt to detect pertechnetate ions. A sensor based on a polyvinyl chloride (PVC) polymeric matrix membrane successfully quantified pertechnetate ions in radioactive waste [ 24 ]. Hierarchical porous Au/ZnO microspheres with a diameter of 10–12 μm were used as a CH 4 gas sensor.…”

Section: Introductionmentioning

confidence: 99%

Preparation of a Cellulose Column for Enhancing the Sensing Efficiency of the Biocide 2-n-Octyl-4-Isothiazolin-3-One

Hong

Kang

2020

Polymers

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In this study, a cellulose acetate (CA) membrane with pores generated by a water pressure treatment was investigated for its ability to serve as a pretreatment filter device for the detection of 2-n-octyl-4-isothiazolin-3-one (OIT). Pores were generated by applying a water pressure of 8 bar to a membrane manufactured using a CA-based polymer solution. The CA used for the manufacturing was an environment-friendly, low-cost and highly energy-efficient material. Furthermore, since the fabricated porous CA polymeric film possessed many hydrophilic functional groups, it could strongly bind hydrophilic substances while avoiding interaction with hydrophobic substances. OIT, which comprises a hydrophobic bond that forms weak bonds over time, can break down more easily than hydrophilic impurities. The different extents of interaction occurring between either the toxic fungicide OIT or the hydrophilic impurities and the CA film were determined by Fourier-transform infrared (FT-IR) spectroscopy. The physicochemical changes in the resulting membrane, which occurred when the pores were generated, were investigated through scanning electron microscopy (SEM) and thermogravimetric analysis (TGA).

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Technetium electrochemistry at the turn of the century

Kuznetsov

Chotkowski

Poineau

et al. 2021

Journal of Electroanalytical Chemistry

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A tetradecylphosphonium compounds–based membrane sensor for potentiometric quantitation of pertechnetate-ions in cementitious radioactive waste

Cited by 5 publications

References 14 publications

Tailor-Made Multiple Interpenetrated Metal–Organic Framework for Selective Detection and Adsorption of ReO₄^–

Tailor-Made Multiple Interpenetrated Metal–Organic Framework for Selective Detection and Adsorption of ReO₄^–

Preparation of a Cellulose Column for Enhancing the Sensing Efficiency of the Biocide 2-n-Octyl-4-Isothiazolin-3-One

Technetium electrochemistry at the turn of the century

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A tetradecylphosphonium compounds–based membrane sensor for potentiometric quantitation of pertechnetate-ions in cementitious radioactive waste

Cited by 5 publications

References 14 publications

Tailor-Made Multiple Interpenetrated Metal–Organic Framework for Selective Detection and Adsorption of ReO4–

Tailor-Made Multiple Interpenetrated Metal–Organic Framework for Selective Detection and Adsorption of ReO4–

Preparation of a Cellulose Column for Enhancing the Sensing Efficiency of the Biocide 2-n-Octyl-4-Isothiazolin-3-One

Technetium electrochemistry at the turn of the century

Contact Info

Product

Resources

About

Tailor-Made Multiple Interpenetrated Metal–Organic Framework for Selective Detection and Adsorption of ReO₄^–

Tailor-Made Multiple Interpenetrated Metal–Organic Framework for Selective Detection and Adsorption of ReO₄^–