Electrochemical detection of hydroquinone based on MoS2/reduced graphene oxide nanocomposites

Peng, Ying; Tang, ZhaoRong; Dong, Yaping; Che, Guang; Xin, Zhifeng

doi:10.1016/j.jelechem.2018.03.034

Cited by 47 publications

(8 citation statements)

References 43 publications

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“…The results are shown in Figure a. The positive shift of the oxidation peak potential and the negative shift of the reduction peak potential with an increase of the scan rate indicates that electron transfer is quasi-reversible Figure b shows that the HQ oxidation and reduction peak current values are proportional to the potential scan rate.…”

Section: Resultsmentioning

confidence: 99%

“…The positive shift of the oxidation peak potential and the negative shift of the reduction peak potential with an increase of the scan rate indicates that electron transfer is quasi-reversible. 50 Figure 5b shows that the HQ oxidation and reduction peak current values are proportional to the potential scan rate. The linear equations can be expressed as I p,a (μA) = 0.158v (mV/s) + 0.310 (R 2 =0.9918) and I p,c (μA) = −25.14v (mV/s) − 2.968 (R 2 = 0.9914), which demonstrates that the redox reaction of HQ on UiO-67−CPE is a typical adsorption control process.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Continuous and Rapid Synthesis of UiO-67 by Electrochemical Methods for the Electrochemical Detection of Hydroquinone

et al. 2020

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Continuous and rapid synthesis of UiO-67 under mild conditions has been achieved by electrochemical methods for the first time. In the reaction system, a zirconium sheet was utilized as electrodes and a metal source for the assembly of UiO-67. High-crystalline UiO-67 with a regular tetrahedral morphology of around 1 μm was obtained within 1.5 h under the optimized solvent composition, voltage, and temperature conditions. This electrochemical synthetic method of UiO-67 in our work overcomes the shortcomings of high temperature and pressure of a traditional solvothermal method, which proposes new ideas for the large-scale and rapid synthesis of UiO-67. The UiO-67 synthesized by an electrochemical method was prepared as a UiO-67−carbon paste electrode (CPE), which exhibited a linear response to hydroquinone (HQ) in the range of 5−300 μM with a detection limit of 3.6 × 10 −9 M (S/N = 3), for the electrochemical detection of HQ. It was confirmed that UiO-67−CPE possessed excellent reusability and antiinterference ability for the detection of HQ, and its detection ability even did not change after standing for 3 months. We further tried to apply UiO-67−CPE to the practical determination of HQ in tap water and river water samples, and the results proved that the recovery rate is 97.9−104.7% in real samples.

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Section: Resultsmentioning

confidence: 99%

Section: ■ Results and Discussionmentioning

confidence: 99%

Continuous and Rapid Synthesis of UiO-67 by Electrochemical Methods for the Electrochemical Detection of Hydroquinone

et al. 2020

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“…They applied this sensor for the selective detection of HQ under the determined optimal conditions. Peng et al [111] . also synthesized a layered MoS 2 /rGO nanocomposite via the solvothermal method and reported excellent catalytic activity toward HQ for the as‐fabricated nanocomposite‐modified GCE.…”

Section: Selective Detection Of Hqmentioning

confidence: 99%

Electrochemical Sensing Platforms of Dihydroxybenzene: Part 1 – Carbon Nanotubes, Graphene, and their Derivatives

Nayem

Shah

Sultana

et al. 2021

The Chemical Record

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Dihydroxybenzene is regarded as a serious environmental pollutant. Its detection through electrochemical methods is still challenging due to having a similar structure and overlapping signals with the conventional bare electrode. Thanks to the unique features and wide applicability of carbon nanotubes, graphene, and their derivatives, they can be used as modifiers to overcome the poor resolution ability of bare electrodes in the detection of dihydroxybenzene. This review focuses on the use of carbon nanotubes, graphene, and their derivatives and nanocomposites to enhance the electrocatalytic activity of conventional bare electrodes for dihydroxybenzene sensing. The reports from 2011–2020 on the simultaneous and/or individual detection of three different dihydroxybenzenes – hydroquinone, catechol, and resorcinol – are summarized. This review also highlights the challenges and prospects surrounding the sensitive and selective detection of dihydroxybenzene.

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“… 18 Gan et al employed a hybrid composite of graphene oxide and MnO 2 whereas Peng et al 19 used a MoS 2 /reduced graphene oxide composite for the sensing of HQ. 20 Although electrochemical techniques are the most promising approach, their performance largely depends on the electrode materials (electro-catalysts). The charge transfer, presence of surface electrochemically active sites and surface morphology also influence the performance of the electrochemical sensing devices.…”

Section: Introductionmentioning

confidence: 99%

A highly sensitive and selective hydroquinone sensor based on a newly designed N-rGO/SrZrO₃ composite

2020

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Electrochemical detection of hydroquinone based on MoS2/reduced graphene oxide nanocomposites

Cited by 47 publications

References 43 publications

Continuous and Rapid Synthesis of UiO-67 by Electrochemical Methods for the Electrochemical Detection of Hydroquinone

Continuous and Rapid Synthesis of UiO-67 by Electrochemical Methods for the Electrochemical Detection of Hydroquinone

Electrochemical Sensing Platforms of Dihydroxybenzene: Part 1 – Carbon Nanotubes, Graphene, and their Derivatives

A highly sensitive and selective hydroquinone sensor based on a newly designed N-rGO/SrZrO₃ composite

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Electrochemical detection of hydroquinone based on MoS2/reduced graphene oxide nanocomposites

Cited by 47 publications

References 43 publications

Continuous and Rapid Synthesis of UiO-67 by Electrochemical Methods for the Electrochemical Detection of Hydroquinone

Continuous and Rapid Synthesis of UiO-67 by Electrochemical Methods for the Electrochemical Detection of Hydroquinone

Electrochemical Sensing Platforms of Dihydroxybenzene: Part 1 – Carbon Nanotubes, Graphene, and their Derivatives

A highly sensitive and selective hydroquinone sensor based on a newly designed N-rGO/SrZrO3 composite

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A highly sensitive and selective hydroquinone sensor based on a newly designed N-rGO/SrZrO₃ composite