Thiol surfactant assembled on gold nanoparticles ion exchanger for screen-printed electrode fabrication. Potentiometric determination of Ce(III) in environmental polluted samples

“…Simultaneously, the peak at about 1657 cm À1 can be ascribed to -CONH bands (mainly stretching of the C]O bonds). 25 In addition, a peak can be observed at 1100 cm À1 in the IR spectrum of Fc-MIL, attributed to the C-H in-plane bending mode. 26 All the results above indicate that the Fc moiety is successfully graed into MIL-101(Fe).…”

Section: Characterizationmentioning

confidence: 99%

Activation of persulfates by ferrocene–MIL-101(Fe) heterogeneous catalyst for degradation of bisphenol A

Wang

Guo

2018

RSC Adv.

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“…To produce the electrodes, a manual screen‐printer was used and arrays of six couples consisting of working electrodes (each 5 × 35 mm) using poly(vinyl chloride) flexible sheet (0.2 mm) as a substrate, according to a previously described procedure . The working electrodes were printed using homemade printing carbon ink using the Fe(III)–Sud complex as ionophore to get various compositions (prepared by mixing 5.0–20.0 mg of ionophore, 450 mg of plasticizer, 1.25 g of poly(vinyl chloride) (8%) and 0.75 g of carbon powder) and then cured at 50°C for 30 min, and were allowed to cool.…”

Section: Methodsmentioning

confidence: 99%

Construction and characterization of nano iron complex ionophore for electrochemical determination of Fe(III) in pure and various real water samples

Ali

Mahmoud

2019

Applied Organom Chemis

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Electrochemical methods represent an important class of widely used techniques for the detection of metal ions. The unique chemical and physical properties of nanoparticles make them extremely suitable for designing new and improved sensing devices, especially electrochemical sensors and biosensors. This study focused on the synthesis of a nano-Fe(III)-Sud complex and its characterization using various spectroscopic and analytical tools, optimized using the density functional theory method, screened for antibacterial activity and evaluated for possible binding to DNA using molecular docking study. Proceeding from the collected information, nano-Fe(III)-Sud was used further for constructing carbon paste and screen-printed ion-selective electrodes. The proposed sensors were successfully applied for the determination of Fe(III) ions in various real and environmental water samples. Some texture analyses of the electrode surface were conducted using atomic force microscopy. At optimum values of various conditions, the proposed electrodes responded towards Fe(III) ions linearly in the range 2.5 × 10 −9 -1 × 10 −2 and 1.0 × 10 −8 -1 × 10 −2 M with slope of 19.73 ± 0.82 and 18.57 ± 0.32 mV decade −1 of Fe(III) ion concentration and detection limit of 2.5 × 10 −9 and 1.0 × 10 −8 M for Fe(III)-Sud-SPE (electrode I) and Fe(III)-Sud-CPE (electrode II), respectively. The electrode response is independent of pH in the range 2.0-7.0 and 2.5-7.0, with a fast response time (4 and 7 s) at 25°C for electrode I and electrode II, respectively.Moreover, the electrodes also showed high selectivity and long lifetime (more than 6 and 3 months for electrode I and electrode II, respectively). The electrodes showed good selectivity for Fe(III) ions among a wide variety of metal ions. The results obtained compared well with those obtained using atomic absorption spectrometry.

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Thiol surfactant assembled on gold nanoparticles ion exchanger for screen-printed electrode fabrication. Potentiometric determination of Ce(III) in environmental polluted samples

Cited by 77 publications

References 54 publications

Gold nanoparticles as efficient sensors in colorimetric detection of toxic metal ions: A review

Gold nanoparticles as efficient sensors in colorimetric detection of toxic metal ions: A review

Activation of persulfates by ferrocene–MIL-101(Fe) heterogeneous catalyst for degradation of bisphenol A

Construction and characterization of nano iron complex ionophore for electrochemical determination of Fe(III) in pure and various real water samples

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