Electrochemical Behavior of Hydroquinone and Catechol at a Silsesquioxane-Modified Carbon Paste Electrode

Silva, Paulo S. da; Gasparini, Bianca C.; Magosso, Hérica A.; Spinelli, Almir

doi:10.5935/0103-5053.20130079

Cited by 16 publications

(15 citation statements)

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“…(27) The adsorbed oxygen will provide an oxygen species that will help in the oxidation/reduction of the material upon interaction with HQ. The performance of the developed sensor is comparable to that of the reported sensors, (16)(17)(18)(19)(20)(21) presenting a possibility of exploring new materials for sensing applications.…”

Section: Methodsmentioning

confidence: 54%

“…For example, da Silva et al modified a carbon paste electrode with a 3-n-propyl-4-picolinium chloride silsesquioxane polymer for the detection of HQ isomers. (16) In another report, Han et al employed an electrochemically reduced hybrid material, ER(GO-TT-CNT), that was prepared by in situ polymerization of graphene oxide (GO), a multiwalled carbon nanotube (CNT), and terthiophene (TT) for the detection of HQ in a pH range of 4.04-9.01. (17) In one of the earlier reports, Kumar et al used ZnO nanoparticles to fabricate an HQ chemical sensor on a modified glassy carbon electrode.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Green Synthesis of NiSnO3 Nanopowder and Its Application as a Hydroquinone Electrochemical Sensor

2015

Sensors and Materials

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Green synthesis of NiSnO 3 nanopowder was carried out via chemie douce using nickel and tin chlorides as precursors by stirring and refluxing at 80 °C. The dried dark green bimetallic oxide nanoparticle was then used for preparing the sensing electrode in the form of a screen-printed electrode (SPE). The synthesized nanoparticles were analyzed for elemental, structural, and morphological characteristics using various analytical techniques. The Fourier transform infrared (FTIR) spectrum indicated the formation of a strong Sn-O-Ni framework, while X-ray diffraction (XRD) confirmed the formation of a bimetallic oxide nanopowder of NiSnO 3. The synthesized nanoparticles were studied for hydroquinone (HQ) sensing characteristics to develop a sensitive and reproducible electrochemical sensor from 1 to 9 mM concentrations in buffer. The developed sensor exhibited a sensitivity of 6.03 µA/mM (46.38 µA/mMcm −2). The charge transfer studies indicated a reversible and diffusion-controlled process. To the best of our knowledge, such a material, i.e., NiSnO 3 , has not be used for HQ sensors and is being reported for the first time.

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Section: Methodsmentioning

confidence: 54%

Section: Introductionmentioning

confidence: 99%

Green Synthesis of NiSnO3 Nanopowder and Its Application as a Hydroquinone Electrochemical Sensor

2015

Sensors and Materials

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“…The relationship between the peak current versus pH is best shown in Figure D. As can be seen, the highest current values were obtained at pH 6.0 for HQ and 8.0 for BPA, both lower than the pKa values reported in the literature (9.73 for BPA and 9.80 for HQ), indicating that the species are predominantly in the protonated form . Thus, considering the sensitivity in the simultaneous determination, a pH value of 6.0 was chosen for the subsequent analytical experiments.…”

Section: Resultsmentioning

confidence: 93%

“…However, it is a highly polluting and hazardous chemical, which is usually absorbed through the skin and can cause damage to the lungs, liver, kidney and urinary tract in living beings . HQ is difficult to degrade and, even in very low concentrations, it is very toxic to animals and human beings .…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Electrochemical Determination of Hydroquinone and Bisphenol A using a Carbon Paste Electrode Modified with Silver Nanoparticles

et al. 2018

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In this paper, a rapid and sensitive modified electrode for the simultaneous determination of hydroquinone (HQ) and bisphenol A (BPA) is proposed. The simultaneous determination of these two compounds is extremely important since they can coexist in the same sample and are very harmful to plants, animals and the environment in general. A carbon paste electrode (CPE) was modified with silver nanoparticles (nAg) and polyvinylpyrrolidone (PVP). The PVP was used as a reducing and stabilizing agent of nAg from silver nitrate in aqueous media. The nAg‐PVP composite obtained was characterized by transmission electron microscopy and UV‐vis spectroscopy. The electrochemical behavior of HQ and BPA at the nAg‐PVP/CPE was investigated in 0.1 mol L−1 B−R buffer (pH 6.0) using cyclic voltammetry (CV) and square wave voltammetry (SWV). The results indicate that the electrochemical responses are improved significantly with the use of the modified electrode. The calibration curves obtained by SWV, under the optimized conditions, showed linear ranges of 0.09–2.00 μmol L−1 for HQ (limit of detection 0.088 μmol L−1) and 0.04–1.00 μmol L−1 for BPA (limit of detection 0.025 μmol L−1). The modified electrode was successfully applied in the analysis of water samples and the results were comparable to those obtained using UV‐vis spectroscopy.

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“…4 Yet, the oxidation and reduction peaks of HQ and CC usually overlap together, rendering them unsolvable by conventional electrodes. 5 According to the reports, some modified electrodes with modifiers comprising polymer, 6 polyamino acid/carbon, 7 polyaniline/ graphene, 8 ionic liquid, 9 porous carbon derived from metal organic frame, 10 gold nanoparticles-overoxidized polypyrrole-multi-walled carbon nanotubes composite film, 11 AuNPs/GO@PDA (gold nanoparticles/graphene oxide@ polydopamine) 12 and activated carbon 13 have been proposed for the detection of HQ and CC. Among them, carbon materials are widely utilized to enhance the performances of electrochemical sensors.…”

Section: Introductionmentioning

confidence: 99%

Determination of Catechol and Hydroquinone by Using Perilla frutescens Activated Carbon Modified Glassy Carbon Electrode

Zhu¹,

Fan²,

Wang³

et al. 2020

J. Braz. Chem. Soc.

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High specific surface area activated carbon prepared by Perilla frutescens (PFHSAAC) was modified on the surface of the glassy carbon electrode (GCE) by drop-coating method to construct a PFHSAAC/GCE. The electrochemical properties of the modified electrode were investigated in detail by some electrochemical methods such as cyclic voltammetry (CV), differential pulse voltammetry (DPV) and electrochemical impedance spectroscopy (EIS). Experiment results show that the modified electrode has excellent redox activity and distinction capability toward the two isomers of catechol (CC) and hydroquinone (HQ). The separation of oxidation peak potential for HQ and CC of DPV is 112.8 mV. Under the optimal conditions, the oxidation peak currents of HQ and CC show good linear relationships with their concentrations in the ranges of 1.0 × 10-6-2.0 × 10-4 and 1.0 × 10-6-1.5 × 10-4 mol L-1 , respectively. The limits of detection for HQ and CC are 3.57 × 10-7 and 4.23 × 10-7 mol L-1 , respectively. The PFHSAAC/GCE exhibits good stability, repeatability and sensitivity. The developed method was used to determine HQ and CC in water samples with best results.

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Electrochemical Behavior of Hydroquinone and Catechol at a Silsesquioxane-Modified Carbon Paste Electrode

Cited by 16 publications

References 0 publications

Green Synthesis of NiSnO3 Nanopowder and Its Application as a Hydroquinone Electrochemical Sensor

Green Synthesis of NiSnO3 Nanopowder and Its Application as a Hydroquinone Electrochemical Sensor

Simultaneous Electrochemical Determination of Hydroquinone and Bisphenol A using a Carbon Paste Electrode Modified with Silver Nanoparticles

Determination of Catechol and Hydroquinone by Using Perilla frutescens Activated Carbon Modified Glassy Carbon Electrode

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