Enhanced Electrochemical Sensing Based on Perylenetetracarboxylic Acid Functionalized Carbon Nanohorns Hybrids Modified Electrode

Zhu, Gangbing; Qian, Junjuan; Sun, Heng; Yi, Yinhui; Wu, Xiangyang

doi:10.1149/2.0041709jes

Cited by 8 publications

(5 citation statements)

References 37 publications

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“…The R ct values of the redox couples are equivalent to the diameters of the quasi-semicircles. 33,34 It is worth noting that the fitted charge transfer resistance (R ct ) values of MoS 2 /GCE (798.8 ) is larger than that of the bare GCE (∼295.2 ). However, the R ct value of CSs@MoS 2 /GCE is conspicuously decreased and the value is very small (∼23.7 ) that 3Ba) < CSs/GCE (Figure 3Bb) < MoS 2 /GCE (Figure 3Bc) < CSs@MoS 2 /GCE (Figure 3Bd).…”

Section: Resultsmentioning

confidence: 99%

Carbon Spheres Wrapped with Molybdenum Disulfide Nanostructure for Sensitive Electrochemical Sensing of 4-aminophenol

Qian

Zhang

Liu

et al. 2018

J. Electrochem. Soc.

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As a novel nanomaterial after graphene, molybdenum disulfide (MoS 2 ) has potential applications in electrochemical sensing and other fields, while the low electric conductivity of MoS 2 limits its application significantly. In this paper, carbon spheres (CSs) wrapped with molybdenum disulfide (CSs@MoS 2 ) novel nanostructure was successfully prepared via a green hydrothermal method and then used for firstly electrochemical sensing of 4-aminophenol (4-AP, one toxic pollutant). The morphology and structure of CSs@MoS 2 were characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, Raman spectroscopy and electrochemical impedance spectroscopy. As an electrochemical sensor, CSs@MoS 2 nanohybrids modified electrode exhibits excellent electrochemical sensing performance toward 4-AP analysis owing to the synergetic advantages of MoS 2 and CSs. Under the optimized conditions, the detection limit of 4-AP obtained in this work is 3 nM and the linear range is 0.01-18.00 μM.

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Section: Resultsmentioning

confidence: 99%

Carbon Spheres Wrapped with Molybdenum Disulfide Nanostructure for Sensitive Electrochemical Sensing of 4-aminophenol

Qian

Zhang

Liu

et al. 2018

J. Electrochem. Soc.

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“…F Li and coworker prepared CCG/PTCA/Au-IL for electrocatalysis (Li et al , 2009), which exhibited good electrocatalytic behavior toward oxygen reduction. G. Zhu and coworker used the composite PTCA-CNHs to enhance electrochemical sensing for bisphenol A (Zhu et al , 2017), the detection limit of which attained to 0.004 μM. However, these composite constructed by no-covalent bonds exist some deficiency for the electrochemical sensor, for example, PTCA molecules were unevenly distributed in those systems, and easy to fall off in the process of electrochemical testing.…”

Section: Introductionmentioning

confidence: 99%

Highly sensitive electrochemical sensor based on novel Ag Nps/Ppti films for detection of hydrazine

Long

Zhang

et al. 2022

PRT

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Purpose A novel semiconducting macromolecule-polyperylene tetraamide (PPTI) was first synthesized with a simple method using 3, 4, 9, 10-perylene tetracarboxylic acid (PTCA) and hydrazine hydrate (N2H4). Design/methodology/approach The Ag nanoparticle was doped on the surface or inside of the PPTI film to obtain a highly sensitive hydrazine sensor-Ag/PPTI, which was synthesized within one step. The structure of Ag/PPTI was characterized through various techniques such as Fourier transform infrared (FT-IR), thermogravimetric analyzer (TGA), X-ray diffraction (XRD), X-ray photoelectron spectroscopy measurements (XPS) and scanning electronic microscopy (SEM). Findings According to cyclic voltammetry results, Ag/PPTI/GCE indicated good electrocatalytic activity toward the oxidation of hydrazine. The amperometric detection of hydrazine was then applied on Ag/PPTI/GCE. It exhibited a wide linear range from 0.05 to 50 µM, a low detection limit (S/N = 3) of 0.05 µM and high sensitivity of 0.45 µA/(µM•cm2). Originality/value In authors’ perception, this approach emerges as an effective technique for developing efficient chemical sensors for environmental pollutants.

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“…Consequently, accurate quantitative analysis for BPA is critical for protecting human health, the environment and certify safety. [7][8][9][10] In order to detect BPA with sensitivity, numerous analytical techniques have been developed, typical techniques including mass spectrometry accompanying with gas chromatography (GC-MS), 11 mass spectrometry accompanying with liquid chromatography (LC-MS), [12][13][14] high-performance liquid chromatography (HPLC), 15,16 fluorescence detection, 17 immunoassay, 18,19 and electrochemical methods. [20][21][22][23] The simple operation, low-cost, portability, sensitive response and rapid detection make electrochemical techniques ideal for analytical methods.…”

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confidence: 99%

A Very Simple Method for Detection of Bisphenol A in Environmental Water by Heme Signal Amplification

Feng¹,

Li²,

Ferranco³

et al. 2020

J. Electrochem. Soc.

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The detection of bisphenol A (BPA) was carried out using several simplified electrochemical sensors in which electroactive materials Heme, dopamine (DA), β-cyclodextrins (β-CD) or Fc-ECG were deposited on screen-printed electrodes (SPEs) through one-step. The preparation of the developed sensors were verified by SEM, CV and DPV. Results shown that Heme/SPE sensor demonstrated notable electro-catalytic capabilities and a greater current response than other sensors for BPA detection and optimal operating conditions were determined. The current response vs concentration of BPA showed a linear relationship in the range of 0.05–0.50 μmol·l−1, the concentration limit of detection (S/N = 3) as 5.0 nmol·l−1 and 0.0013 μA·μM−1·cm−2 as the sensitivity of detection. There were no interferences arising from common elements that relate to BPA. Heme/SPE was applied for BPA detection in bottle drinking water, tap water and lake water; findings showed a total R.S.D. of less than 3.1% and average recovery from 95.0 to 104.0%. These results showed that the actual application of BPA detection was rapid and precise when placed in environmental water and even useful for safety verification.

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Enhanced Electrochemical Sensing Based on Perylenetetracarboxylic Acid Functionalized Carbon Nanohorns Hybrids Modified Electrode

Cited by 8 publications

References 37 publications

Carbon Spheres Wrapped with Molybdenum Disulfide Nanostructure for Sensitive Electrochemical Sensing of 4-aminophenol

Carbon Spheres Wrapped with Molybdenum Disulfide Nanostructure for Sensitive Electrochemical Sensing of 4-aminophenol

Highly sensitive electrochemical sensor based on novel Ag Nps/Ppti films for detection of hydrazine

A Very Simple Method for Detection of Bisphenol A in Environmental Water by Heme Signal Amplification

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