Highly sensitive electrochemical sensor based on carbon-rich graphitic carbon nitride as an electrocatalyst for the detection of diphenylamine

Kesavan, Ganesh; Chen, Shen‐Ming

doi:10.1016/j.microc.2020.105587

Cited by 25 publications

(13 citation statements)

References 64 publications

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“…The remnants of DPAH •+ are found in fruits and in related supplementary food products. Consequently, there is a considerable risk of consuming excessive DPAH •+ , which might result in undesirable side effects such as hypertension, blood poisoning, head ache, eczema, bladder disease, tachycardia, cough, hemosiderosis, dermatitis, and erythropoiesis. , The inclusion of this significant pollutant on the list of preferred chemicals by the EU underlines the importance of its detection, where the EU directive 91/414/EEC displays 5–10 mg kg –1 as the highest reference concentration to be used. , DPAH •+ is also used in a variety of industrial operations, including DNA detection, the synthesis of photographic chemicals, and the production of azo-dyes, rubber, medicines, and plastics. It is employed as a parent compound for the manufacturing of nonsteroidal anti-inflammatory medications and as a stabilizing ingredient in explosives, fragrance goods, and propellants .…”

Section: Introductionmentioning

confidence: 99%

Surfactant-Assisted Synthesis of Praseodymium Orthovanadate Nanofiber-Supported NiFe-Layered Double Hydroxide Bifunctional Catalyst: The Electrochemical Detection and Degradation of Diphenylamine

et al. 2022

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Physiological storage disorders are caused by ineffective post-harvest handling of horticultural crops, particularly fruits. To address these post-harvest concerns, diphenylamine (DPAH •+ ) is widely used as a preservative to prevent fruit degradation and surface scald during storage around the world. Humans are negatively affected by the use of high concentrations of DPAH •+ because of the various health complications related to its exposure. As a result, accurate detection and quantification of DPAH •+ residues in treated fruits are critical. Rare earth metal orthovanadates, which have excellent physical and chemical properties, are potential materials for electrochemical sensors in this area. Herein, we present a simple and direct ultrasonication technique for the surfactant-assisted synthesis of praseodymium orthovanadate (PrVO 4 or PrV) loaded on nickel iron layered double hydroxide (NiFe-LDH) synthesized with deep eutectic solvent assistance, as well as its application as an effective catalyst in the detection and degradation of DPAH •+ in fruits and water samples. The current work presents supreme electrochemical features of a PrV@NiFe-LDH-modified screen-printed carbon electrode (SPCE) where cetyltrimethylammonium bromide (CTAB) surfactant-driven fabrication of PrV directs the formation of highly qualified engineered structures and the deep eutectic solvent based green synthesis of NiFe-LDH creates hierarchical lamellar structures following the principles of green chemistry. PrV and NiFe-LDH combine to produce a synergistic effect that improves the number of active sites, charge transfer kinetics, and electronic conductivity. Differential pulse voltammetry analysis of PrV@NiFe-LDH/SPCE reveals a dynamic working range (0.005−226.26 μM), increased sensitivity (133.13 μA μM −1 cm −2 ), enhanced photocatalytic activity, and low detection limit (0.001 μM), which are considered significant when compared with the former reported electrodes in the literature for the determination of DPAH ̇+ for its real-time applications.

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Section: Introductionmentioning

confidence: 99%

Surfactant-Assisted Synthesis of Praseodymium Orthovanadate Nanofiber-Supported NiFe-Layered Double Hydroxide Bifunctional Catalyst: The Electrochemical Detection and Degradation of Diphenylamine

et al. 2022

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“…18 Graphitic carbon nitride (g-C 3 N 4 ) is nitrogen and carbon rich polymeric semiconductor offers some special properties such as medium band gab (2.7 eV), low toxicity, easy preparation, larger surface area, and high electrocatalytic properties etc. 19,20 The g-C 3 N 4 is widely used in fabrication of electrochemical biosensor to detect biomolecules and boost the electrochemical performance of the biosensor. 21 In literature, Yola et al, for very rst time developed an molecular imprinted sensor based on g-C 3 N 4 for determination of melamine in food sample.…”

Section: Introductionmentioning

confidence: 99%

Graphitic carbon nitride and APTES modified advanced electrochemical biosensor for detection of 17β-estradiol in spiked food samples

Bacchu¹,

Hasan²,

Mamun³

et al. 2022

RSC Adv.

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“…4 In addition, the tri-s-triazine ring structure and the elevated condensation provide high thermal stability (600 • C in the air) and chemical inertness (in both acid and base medium), 5,6 and excellent electronic configuration makes it an excellent material for various photochemical and electrochemical sensor applications. [7][8][9][10][11] In recent days, various metal and nonmetal doping methods were demonstrated to fine-tune the optical and electronic characteristics of the polymeric graphitic carbon nitride. 12,13 Because of the structural similarities of both graphene and g-C 3 N 4 , it can be utilized for varied electrochemical potentials.…”

Section: Introductionmentioning

confidence: 99%

“…The g‐C 3 N 4 is an allotrope with a structural similarity of graphene but strong covalent bonding of C‐N bonding than the C‐C bond in graphene sheet and identical week van der Waals force between each layer 4 . In addition, the tri‐s‐triazine ring structure and the elevated condensation provide high thermal stability (600°C in the air) and chemical inertness (in both acid and base medium), 5,6 and excellent electronic configuration makes it an excellent material for various photochemical and electrochemical sensor applications 7–11 . In recent days, various metal and nonmetal doping methods were demonstrated to fine‐tune the optical and electronic characteristics of the polymeric graphitic carbon nitride 12,13 .…”

Section: Introductionmentioning

confidence: 99%

Metal‐free Sulfur‐doped graphitic carbon nitride‐modified GCE‐based electrocatalyst for the enhanced electrochemical determination of Omeprazole in Drug formulations and Biological Samples

Pandian

Kalayarasi

Gopinath

2022

Biotech and App Biochem

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This study presents a novel sulfur-doped graphitic carbon nitride (S@g-C 3 N 4 ) with a wider potential range as electrocatalyst for electrochemical sensor application. The S@g-C 3 N 4 nanosheets were successfully prepared with a ball milling method by mixing appropriate molar concentration required precursors. The as-synthesized heteroatom-doped graphitic carbon nitride is characterized by spectroscopic techniques including PL, DRS-UV, FT-IR, and Brunauer-Emmett-Teller equation. The morphological features were studied by FE-SEM and HR-TEM analysis. Chit-S@g-C 3 N 4 -modified glassy carbon electrode (GCE) was employed for the electrochemical detection of omeprazole (OMZ) use in drug formulations. We have noted an oxidation peak current response at a potential of +0.8 V versus Ag/AgCl in PBS medium (0.1 M, pH 7.0). Differential pulse voltammetry amperometry experimental method can be used to measure the concentration of OMZ for quantitative studies in known samples. Under the optimized experimental condition, the calibration plot was constructed by plotting the peak currents versus OMZ in the linear ranges from 6.0 × 10 −7 to 26 × 10 −5 M. The linear regression equation is estimated to be I p (μA) = 0.9518 (C/μM) + 0.3340 with a good correlation coefficient of 0.9996. The lower determination limit was found to be 20 nM and the current sensitivity was calculated (31.722 μA μM −1 cm −2 ). The developed sensor was utilized successfully to determine the OMZ concentration in drug formulations and biological fluids. These results revealed that the Chit-S@g-C 3 N 4 -modified GCE showed excellent electroanalytical performance for the detection of OMZ at a low LOD, wider linear range, high sensitivity, good reproducibility, long-term storage stability, and selectivity with an acceptable relative standard deviation value.

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Highly sensitive electrochemical sensor based on carbon-rich graphitic carbon nitride as an electrocatalyst for the detection of diphenylamine

Cited by 25 publications

References 64 publications

Surfactant-Assisted Synthesis of Praseodymium Orthovanadate Nanofiber-Supported NiFe-Layered Double Hydroxide Bifunctional Catalyst: The Electrochemical Detection and Degradation of Diphenylamine

Surfactant-Assisted Synthesis of Praseodymium Orthovanadate Nanofiber-Supported NiFe-Layered Double Hydroxide Bifunctional Catalyst: The Electrochemical Detection and Degradation of Diphenylamine

Graphitic carbon nitride and APTES modified advanced electrochemical biosensor for detection of 17β-estradiol in spiked food samples

Metal‐free Sulfur‐doped graphitic carbon nitride‐modified GCE‐based electrocatalyst for the enhanced electrochemical determination of Omeprazole in Drug formulations and Biological Samples

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