Spinel CoMn2O4 nano-/micro-spheres embedded RGO nanosheets modified disposable electrode for the highly sensitive electrochemical detection of metol

Venkatesh, Krishnan; Chen, Shen‐Ming; Karuppasamy, P.; Haidyrah, Ahmed S.; Karuppiah, Chelladurai; Yang, Chun‐Chen; Ramaraj, Sayee Kannan

doi:10.1016/j.jiec.2021.11.005

Cited by 20 publications

(16 citation statements)

References 37 publications

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“…The LOD was estimated using this equation and was found to be 2.1 nM. In addition, metrics include wide linear ranges and lower detection limits compared to other electrode materials for the determination of Metol, as shown in Table . ,,− Thus, the analytical findings indicate that LSO@ f -HNT is a promising candidate for Metol determination in real-time analysis.…”

Section: Resultsmentioning

confidence: 99%

“…The above result shows that the reaction is reversible. From 4-(methylamino) phenol hydrogen sulfate (Metol) to 4-(methylamino) cyclohexane-2,5-diene-1-one hydrogen sulfate, 2e – and 2H + are transferred in this reversible process, Scheme …”

Section: Resultsmentioning

confidence: 99%

“…All over the world, the field of photography has been developed enormously in the past few decades. Complex chemicals such as reducing agents, buffers, and chelating agents are used to translate latent pictures into visible image photography. , The significant chemical resources for use in the transfer of visual to latent concepts are Metol, dimezone, and hydroquinone . Among these three components, Metol is a well-known agent for picture development, and professional photographers have used it for over a century.…”

Section: Introductionmentioning

confidence: 99%

“…Among these three components, Metol is a well-known agent for picture development, and professional photographers have used it for over a century. Metol is a monochromic chemical that contains a phenol-substituted organic compound ( N -methyl- p -aminophenol sulfate), and it is used as a photographic developer and hair dye. , Organic compounds have a crucial role in the global growth in human health and environmental issues due to water contamination . Important chemical substances that are extremely harmful to human health are included in the organic pollutants, such as dyes, sulfur, and nitrogen derivatives.…”

Section: Introductionmentioning

confidence: 99%

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Designing Hybrid Lanthanum Stannate/Functionalized Halloysite Nanotubes as Electrode Material for Electrochemical Detection of 4-(Methylamino)phenol (Metol) in Environmental Samples

Radha

Wang

2023

ACS Sustainable Chem. Eng.

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Electrochemical applications such as electrical conductivity, sensitivity, selectivity, cost-effectiveness, and sampling techniques of different forms of pyrochlore oxide have been a field of current interest. In this regard, pyrochlore structured lanthanum stannate nanoparticles (LSO) decorated with functionalized halloysite nanotubes (f-HNT) were prepared via hydrothermal followed by sonochemical synthesis. The obtained samples were characterized through various spectroscopic and microscopic methods to investigate the LSO@f-HNT structure and morphology. Electrocatalytic studies of LSO@f-HNT were performed by cyclic voltammetry (CV) and differential pulse voltammetry (DPV) techniques. The beneficial response of LSO interacting with the hollow structured f-HNT groups of aluminol (Al−OH) and siloxane (Si−O−Si) enhances the electron transmission channel and active site size, both of which contribute to improved electrocatalytic performance. The fabricated sustainable LSO@f-HNT electrocatalyst exhibits outstanding selectivity and linear range (0.01−480 μM) with a detection limit of 2.1 nM and produces good recovery results (97.8−99.68%) under the optimized measurement conditions. This study discusses the design of the LSO@f-HNT composite and its application as an electrode material for the sensitive and focused electrochemical detection of hazardous Metol. This research demonstrates that LSO and f-HNT

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Designing Hybrid Lanthanum Stannate/Functionalized Halloysite Nanotubes as Electrode Material for Electrochemical Detection of 4-(Methylamino)phenol (Metol) in Environmental Samples

Radha

Wang

2023

ACS Sustainable Chem. Eng.

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“…It is obvious that fluorine doping enhances the photocatalytic behavior of g-C 3 N 4 . Upon addition of metol, an enormous change in the peak potential and peak current prove the excellent photocatalytic behavior . The electrochemical redox reaction is dose-dependent.…”

Section: Electrochemical Ability Of F/g-c3n4 Nanosheetsmentioning

confidence: 99%

Green Fluorine-Confined 2D layered Graphitic Carbon Nitride (g-C₃N₄) Nanosheets for Electrocatalysts and Photocatalysts toward the Detection and Degradation of Metol Drugs in Wastewater

Vasu

Ravi

Subramaniyam

et al. 2023

ACS Appl. Eng. Mater.

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The "To carry two faces under one hood" technique is used in this article to study how hazardous environmental contaminants are removed by photocatalysis and electrochemistry. By the thermal decomposition approach, nanosheets of F-doped graphitic carbon nitride (g-C 3 N 4 ) are synthesized using varying weight percentages of NH 4 F (1, 2, and 3 wt %). Various characterization techniques are applied to study the physiochemical properties of the synthesized F/g-C 3 N 4 nanosheets. The electrochemical characteristics of F/g-C 3 N 4 nanosheets are investigated by decorating a screen-printed carbon electrode (SPCE) with F/g-C 3 N 4 and successfully utilizing it for the detection of the organic water effluent metol. F/g-C 3 N 4 exhibits excellent sensitivity, stability, repeatability, and reproducibility toward the detection of metol with a lower limit of detection (7.483 nM) in the linear range of 0.2−40 μM. The real-time potential application of the decorated electrode for the detection of metol in various real water samples shows excellent recovery percentages. F/g-C 3 N 4 (2 wt %) has a lower band gap with better charge-transfer properties when compared to bulk g-C 3 N 4 and F/g-C 3 N 4 (1 and 3 wt %). A higher photocatalytic degradation efficiency of 80% is obtained within a short treatment time (60 min) using F2/g-C 3 N 4 . The visible light-assisted metol degradation process follows pseudo-firstorder kinetics. Moreover, gas chromatography−mass spectrometry (GC−MS) analysis further validates the degradation response and proposes potential degradation pathways. Investigating the toxicity of the treated water using green gram seeds shows that the treated water is safe to consume and does not contain any toxins. In this respect, F/g-C 3 N 4 nanosheets are outstanding electrophotocatalytic materials that are extremely effective and have a wide range of applications.

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Nanostructured Spinel Manganates and Their Composites for Electrochemical Energy Conversion and Storage

Rani

Sivanantham

Cho

2023

Adv Funct Materials

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Spinel manganates (AMn2O4; A = Co, Ni, Cu, Zn, and Fe; collectively referred to as AMO) are promising electrode materials for water electrolyzers, pseudocapacitors, and batteries owing to their inherent advantages such as valence variability, high catalytic activity, conductivity, stability, low‐cost, and environmental friendliness. Nanostructured materials, with a large surface area and short ion diffusion length, offer great potential for achieving enhanced electrochemical performance. This review summarizes spinel manganates with various nanostructured morphologies and discusses the impact of the structure and composition on the electrochemical performance. The review demonstrates that nanostructured spinel manganates with preferred A‐site cation significantly improve the thermodynamics and electrochemical reaction kinetics at solid–liquid and solid–solid interfaces. Notably, faceted, hollow, 1D nanostructured CoMn2O4 and its nanocomposites (CoMn/CoMn2O4 and NiMn2O4/C) exhibit outstanding electrochemical performance. The review also provides an overview of the importance of energy conversion and storage, and the advantages of spinel manganates as electrode materials. Additionally, the review describes feasible methods of synthesizing AMO nanostructures and nanocomposites. The insights provided in this review are expected to contribute to the synthesis of spinel manganates with desired morphologies and compositions, enabling the future development of efficient electrode materials for energy conversion and storage devices.

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Spinel CoMn2O4 nano-/micro-spheres embedded RGO nanosheets modified disposable electrode for the highly sensitive electrochemical detection of metol

Cited by 20 publications

References 37 publications

Designing Hybrid Lanthanum Stannate/Functionalized Halloysite Nanotubes as Electrode Material for Electrochemical Detection of 4-(Methylamino)phenol (Metol) in Environmental Samples

Designing Hybrid Lanthanum Stannate/Functionalized Halloysite Nanotubes as Electrode Material for Electrochemical Detection of 4-(Methylamino)phenol (Metol) in Environmental Samples

Green Fluorine-Confined 2D layered Graphitic Carbon Nitride (g-C₃N₄) Nanosheets for Electrocatalysts and Photocatalysts toward the Detection and Degradation of Metol Drugs in Wastewater

Nanostructured Spinel Manganates and Their Composites for Electrochemical Energy Conversion and Storage

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Spinel CoMn2O4 nano-/micro-spheres embedded RGO nanosheets modified disposable electrode for the highly sensitive electrochemical detection of metol

Cited by 20 publications

References 37 publications

Designing Hybrid Lanthanum Stannate/Functionalized Halloysite Nanotubes as Electrode Material for Electrochemical Detection of 4-(Methylamino)phenol (Metol) in Environmental Samples

Designing Hybrid Lanthanum Stannate/Functionalized Halloysite Nanotubes as Electrode Material for Electrochemical Detection of 4-(Methylamino)phenol (Metol) in Environmental Samples

Green Fluorine-Confined 2D layered Graphitic Carbon Nitride (g-C3N4) Nanosheets for Electrocatalysts and Photocatalysts toward the Detection and Degradation of Metol Drugs in Wastewater

Nanostructured Spinel Manganates and Their Composites for Electrochemical Energy Conversion and Storage

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Product

Resources

About

Green Fluorine-Confined 2D layered Graphitic Carbon Nitride (g-C₃N₄) Nanosheets for Electrocatalysts and Photocatalysts toward the Detection and Degradation of Metol Drugs in Wastewater