Economical, facile synthesis of network-like carbon nanosheets and their use as an enhanced electrode material for sensitive detection of ascorbic acid

Han, Junfeng; Li, Yiju; Wang, Shaobin; Li, Runhao; Zhang, Hongquan; Yan, Yongde; Ye, Ke; Cheng, Kui; Cao, Dianxue; Wang, Guiling

doi:10.1039/c6ra28805g

Cited by 5 publications

(3 citation statements)

References 47 publications

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“…This pathway might be reinforced in the electron transfer kinetics of HQ and CT toward PTPCNS/GCE. [ 32,58,59 ]…”

Section: Resultsmentioning

confidence: 99%

“…This pathway might be reinforced in the electron transfer kinetics of HQ and CT toward PTPCNS/GCE. [32,58,59] The estimation specified the unique properties of PTPCNS that enlarge the electrocatalytic properties of GCE when PTPCNS is incorporated on the surface of GCE. This superior electrocatalytic property of PTPCNS was accountable for the faster electron transfer of HQ and CT toward PTPCNS/GCE and consequently, satisfactory resolution was achieved.…”

Section: S C H E M E 1 Probable Electron Transfer Mechanism Of Hq And...mentioning

confidence: 99%

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Porous tal palm carbon nanosheets as a sensing material for simultaneous detection of hydroquinone and catechol

Nayem

Sultana

Islam

et al. 2021

Electrochemical Science Adv

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In this article, an electrochemical sensor was prepared for the simultaneous detection of hydroquinone (HQ) and catechol (CT) by incorporating porous tal palm carbon nanosheets (PTPCNS) as the modifier substance on the surface of glassy carbon electrode (GCE). Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) were utilized to characterize the electrochemical properties of the designed (PTCNS/GCE) sensor. PTPCNS/GCE demonstrated excellent electro‐catalytic property toward resolving the individual voltametric signal of HQ and CT from their mixture. Differential pulse voltammetry (DPV) was applied to quantify the lower limit of HQ and CT. The calculated limit of detection (LOD) was 0.15 µM for HQ with the linear range of 1–300 µM and 0.49 µM for CT with the corresponding linear range 5–225 µM obtained for the proposed sensor. The limit of quantification (LOQ) was found 0.51 µM and 1.63 µM for HQ and CT, respectively. Modified PTPCNS/GCE exhibited excellent selectivity towards HQ and CT even in presence of 10 folds potential interference. The practical applicability of the proposed sensor was analyzed in tap water sample with an excellent recovery of 98–104% for HQ and 99–102% for CT.

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“…This pathway might be reinforced in the electron transfer kinetics of HQ and CT toward PTPCNS/GCE. [ 32,58,59 ]…”

Section: Resultsmentioning

confidence: 99%

Section: S C H E M E 1 Probable Electron Transfer Mechanism Of Hq And...mentioning

confidence: 99%

Porous tal palm carbon nanosheets as a sensing material for simultaneous detection of hydroquinone and catechol

Nayem

Sultana

Islam

et al. 2021

Electrochemical Science Adv

View full text Add to dashboard Cite

show abstract

“…The GCE has some advantages, such as good stability and conductivity, high rigidity and intensity, and it can be easily modified . In the previous studies, GCE was modified with different materials, such as Mn(III) tetratolylporphyrin chloride (MnTTPCl), Au nanoparticles (AuNPs), multi‐walled carbon nanotubes (MWNTs) and polyethyleneimine (PEI) (AuNPs/MWNTs/PEI), chrysanthemum‐like titanium nitride (CL‐TiN), BaWO 4 nanomaterials, gold nanoparticle‐decorated MoS 2 nanosheets (AuNPs@MoS 2 ), 3,4,9,10‐perylenetetracarboxylic acid (PTCA) and overoxidized dopamine polymer (PDAox), graphene oxide (GO)‐AuNPs, PdPt bimetallic alloy nanowires (PdPt BANWs), Ni(OH) 2 , network‐like carbon nanosheets (NCN), BiVO 4 /FeVO 4 nanocomposite, MoS 2 ‐PANI/rGO, reduced graphene oxide/Prussian blue (PrGO/PB) nanocomposite, and hexagonal boron nitride (h‐BN), for the determination of AA.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Determination of Ascorbic Acid Based on AgNPs/PVP‐Modified Glassy Carbon Electrode

Karaboduk

2019

ChemistrySelect

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The electrochemical determination of ascorbic acid was carried out at the surface of glassy carbon electrode (GCE) modified by silver nanoparticles (AgNPs):Polyvinylpyrrolidone (PVP). Nanocomposite was evaluated by fourier transform infrared spectroscopy, zeta potential, and X‐ray diffraction. Also, the surface morphologies of the developed electrode were investigated by scanning electron microscopy, and profilometer. The electrochemical performance of AgNPs/PVP/GCE was studied with cyclic voltammetry and electrochemical impedance spectroscopy measurements. The electrochemical studies demonstrated that the electrode had a large surface. Compared with the bare GCE, PVP/GCE, and AgNPs/GCE, the AgNPs/PVP‐modified GCE showed excellent performance for the electrochemical determination of ascorbic acid. At the optimized conditions of differential pulse voltammetry in pH 6.0 of phosphate buffer solution, the modified electrode allowed the determination of ascorbic acid on a potential of 0.54 V vs. Ag/AgCl. Under optimized conditions, the low detection limit of 0.047 μM and working range of 0.2‐1200 μM were obtained at the AgNPs/PVP/GCE. The AgNPs/PVP/GCE allowed to obtain highest peak current values at low concentrations. Moreover, the fabricated electrode also exhibited good repeatability, reproducibility, and stability. The developed electrode was successfully enforced for the analysis of ascorbic acid in banana, kiwi fruit, mango, and pineapple.

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High‐Performance Piezo‐Electrocatalytic Sensing of Ascorbic Acid with Nanostructured Wurtzite Zinc Oxide

et al. 2021

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plays a vital role in biological metabolisms, for example, the digestion of amino acids, as well as the synthesis of adrenalin, certain hormones, and neurotransmitters. [2] AA has also been commonly used for the prevention and treatment of scurvy, [3] cancer, [4] common cold, [5] and AIDS, [6] etc. The design and implementation of cost-effective, high-performance electrochemical sensors for the rapid and accurate quantification of AA concentration in foods or biological fluids are important for many societally pervasive applications such as clinical diagnostics, [7] wearable health monitoring, [8] food safety, [9] and environmental monitoring. [10] However, the direct electrooxidation of AA on the surface of the bare electrodes is irreversible. [11] Moreover, the subsequent hydrolysis of the reaction will cause electrode fouling with large overpotential, poor selectivity, low sensitivity, and unsatisfactory reproducibility. [12] Nanostructured catalysts with large specific surfaces and abundant active sites appeal to highly sensitive electrochemical sensing of various chemicals. Various nanomaterials, such as conducting polymers, [13] carbon materials, [14] and metal oxides, [15] have been explored for modifying the electrodes to efficiently detect AA, Nanostructured piezoelectric semiconductors offer unprecedented opportunities for high-performance sensing in numerous catalytic processes of biomedical, pharmaceutical, and agricultural interests, leveraging piezocatalysis that enhances the catalytic efficiency with the strain-induced piezoelectric field. Here, a cost-efficient, high-performance piezo-electrocatalytic sensor for detecting l-ascorbic acid (AA), a critical chemical for many organisms, metabolic processes, and medical treatments, is designed and demonstrated. Zinc oxide (ZnO) nanorods and nanosheets are prepared to characterize and compare their efficacy for the piezo-electrocatalysis of AA. The electrocatalytic efficacy of AA is significantly boosted by the piezoelectric polarization induced in the nanostructured semiconducting ZnO catalysts. The charge transfer between the strained ZnO nanostructures and AA is elucidated to reveal the mechanism for the related piezo-electrocatalytic process. The lowtemperature synthesis of high-quality ZnO nanostructures allows low-cost, scalable production, and integration directly into wearable electrocatalytic sensors whose performance can be boosted by otherwise wasted mechanical energy from the working environment, for example, human-generated mechanical signals.

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Economical, facile synthesis of network-like carbon nanosheets and their use as an enhanced electrode material for sensitive detection of ascorbic acid

Abstract: A highly sensitive electrochemical sensor for the detection of ascorbic acid (AA) was first fabricated using network-like carbon nanosheets (NCN) as an enhanced electrode modifier.

Cited by 5 publications

References 47 publications

Porous tal palm carbon nanosheets as a sensing material for simultaneous detection of hydroquinone and catechol

Porous tal palm carbon nanosheets as a sensing material for simultaneous detection of hydroquinone and catechol

Electrochemical Determination of Ascorbic Acid Based on AgNPs/PVP‐Modified Glassy Carbon Electrode

High‐Performance Piezo‐Electrocatalytic Sensing of Ascorbic Acid with Nanostructured Wurtzite Zinc Oxide

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