Strongly coupled design of zinc oxide-nanorods/copper tin sulfide-nanoflowers nanostructures: An electrochemical study in 4-nitrochlorobenzene detection

Kokulnathan, Thangavelu; Vishnuraj, Ramakrishnan; Wang, Tzyy-Jiann; Pullithadathil, Biji; Rangarajan, Murali; Ahmed, Faheem; Alshahrani, Thamraa

doi:10.1016/j.cej.2023.147747

Cited by 10 publications

(4 citation statements)

References 83 publications

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“…Various analytical approaches are developed in detecting H 2 O 2 , which include surface-enhanced Raman spectroscopy, electrochemical detection, molecularly imprinted sensors, enzyme-linked immunoassay, photoluminescence, photoelectrochemical sensors, colorimetric detection, mass spectrometry, high-performance liquid chromatography, and colorimetric detection. − Among these, electrochemical detection has drawn tremendous attention due to its fast response, high sensitivity, portability, high reliability, better accuracy, miniaturization, low cost, and user-friendly approach. − Electrode materials are vital in electrochemical analysis to achieve an enhanced and high electrochemical performance. Kaplan et al fabricated a nonenzymatic electrochemical sensor based on nickel–iron oxide@sulfur-doped reduced graphene oxide modified glassy carbon electrodes (GCEs) to detect H 2 O 2 .…”

Section: Introductionmentioning

confidence: 99%

“… 17 − 23 Among these, electrochemical detection has drawn tremendous attention due to its fast response, high sensitivity, portability, high reliability, better accuracy, miniaturization, low cost, and user-friendly approach. 24 − 29 Electrode materials are vital in electrochemical analysis to achieve an enhanced and high electrochemical performance. Kaplan et al fabricated a nonenzymatic electrochemical sensor based on nickel–iron oxide@sulfur-doped reduced graphene oxide modified glassy carbon electrodes (GCEs) to detect H 2 O 2 .…”

Section: Introductionmentioning

confidence: 99%

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Synergism of Holmium Orthovanadate/Phosphorus-Doped Carbon Nitride Nanocomposite: Nonenzymatic Electrochemical Detection of Hydrogen Peroxide

Kokulnathan,

Wang,

Ahmed

et al. 2024

Inorg. Chem.

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Developing efficient and robust electrode materials for electrochemical sensors is critical for real-time analysis. In this paper, a hierarchical holmium vanadate/phosphorus-doped graphitic carbon nitride (HoVO 4 /P-CN) nanocomposite is synthesized and used as an electrode material for electrochemical detection of hydrogen peroxide (H 2 O 2 ). The HoVO 4 /P-CN nanocomposite exhibits superior electrocatalytic activity at a peak potential of −0.412 V toward H 2 O 2 reduction in alkaline electrolytes while compared with other reported electrocatalysts. The HoVO 4 /P-CN electrochemical platform operated under the optimized conditions shows excellent analytical performance for H 2 O 2 detection with a linear concentration range of 0.009−77.4 μM, a high sensitivity of 0.72 μA μM −1 cm −2 , and a low detection limit of 3.0 nΜ. Furthermore, the HoVO 4 /P-CN-modified electrode exhibits high selectivity, remarkable stability, good repeatability, and satisfactory reproducibility in detecting H 2 O 2 . Its superior performance can be attributed to a large specific surface area, high conductivity, more active surface sites, unique structure, and synergistic action of HoVO 4 and P-CN to benefit enhanced electrochemical activity. The proposed HoVO 4 /P-CN electrochemical platform is effectively applied to ascertain the quantity of H 2 O 2 in food and biological samples. This work outlines a promising and effectual strategy for the sensitive electrochemical detection of H 2 O 2 in real-world samples.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synergism of Holmium Orthovanadate/Phosphorus-Doped Carbon Nitride Nanocomposite: Nonenzymatic Electrochemical Detection of Hydrogen Peroxide

Kokulnathan,

Wang,

Ahmed

et al. 2024

Inorg. Chem.

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“…19,20 Among these, transition metal-based nanomaterials (TMNs) are commonly used because of their low cost, availability, and good chemical stability. 21 TMNs have been developed over the past era and were proposed for electrochemical applications. 22,23 Regarding scientific and technical prospects, TMN tungstate is the oxide ceramic class developed and initiated to have vast electrocatalytic applications.…”

Section: ■ Introductionmentioning

confidence: 99%

“…A novel electrocatalyst is needed to change electrodes to accurately assay NPs quickly. Electrode modification has used noble metals, carbon-based compounds, metal oxides, metal hydroxides, and polymers. , Among these, transition metal-based nanomaterials (TMNs) are commonly used because of their low cost, availability, and good chemical stability …”

Section: Introductionmentioning

confidence: 99%

Nickel Tungstate Nanoparticle-Modified Screen-Printed Carbon Electrode: The Disposal Strip for the Electrochemical Detection of Tertiary Butylhydroquinone

Akila,

Sakthinathan,

Chiu

et al. 2024

ACS Appl. Eng. Mater.

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The food industry routinely uses synthetic antioxidants, which have garnered a great deal of attention due to the toxicity of these substances. tert-Butylhydroquinone (THQ) is a phenolic derivative commonly found in foods, including milk, meat products, fried baked goods, and cooking oil. It is capable of causing nutritional issues and chronic diseases if ingested in excess. Food safety requires precise and fast THQ detection since excessive THQ in food harms human health. In this study, nickel tungstate nanoparticles (NiWO 4 ) were synthesized hydrothermally and further utilized as an electrode material for electrochemical THQ detection. The prepared NiWO 4 nanoparticle's physicochemical properties and surface morphologies were wisely analyzed using analytical methods. The Nyquist plot of NiWO 4 exhibits a smaller R ct value of 132.15 Ω•cm 2 with a higher electrochemical active surface area of 0.097 cm 2 compared to a bare screen-printed carbon electrodes (SPCEs). Under ideal conditions, the NiWO 4 /SPCE exhibits reduction peak potential at E pc = −0.19 V with good linearity from 0.01−20.90 and 20.90−557.1 μM of THQ concentration and a limit of detection of 0.002 μM (S/N = 3) and anti-interfering capabilities. The practicality of NiWO 4 /SPCE for THQ measurement in food samples was successfully tested, and the recovery ranges (±96.8−99.8%) demonstrated NiWO 4 /SPCE as promising electrode materials for accurate sample analysis.

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Hydrothermal synthesis of iron titanate hexagonal nanoplates for electrochemical detection of nitrofurazone

Nair,

Kokulnathan,

Wang

et al. 2024

Microchim Acta

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Strongly coupled design of zinc oxide-nanorods/copper tin sulfide-nanoflowers nanostructures: An electrochemical study in 4-nitrochlorobenzene detection

Cited by 10 publications

References 83 publications

Synergism of Holmium Orthovanadate/Phosphorus-Doped Carbon Nitride Nanocomposite: Nonenzymatic Electrochemical Detection of Hydrogen Peroxide

Synergism of Holmium Orthovanadate/Phosphorus-Doped Carbon Nitride Nanocomposite: Nonenzymatic Electrochemical Detection of Hydrogen Peroxide

Nickel Tungstate Nanoparticle-Modified Screen-Printed Carbon Electrode: The Disposal Strip for the Electrochemical Detection of Tertiary Butylhydroquinone

Hydrothermal synthesis of iron titanate hexagonal nanoplates for electrochemical detection of nitrofurazone

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