Nitrobenzene electrochemical sensor based on silver nanoparticle supported on poly-melamine functional multi-walled carbon nanotube

Ren, Jianguo; Li, Liujia; Cui, Min; Zhai, Miao; Yu, Congcong; Ji, Xueping

doi:10.1007/s11581-016-1713-2

Cited by 15 publications

(3 citation statements)

References 40 publications

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“…The broad P1 peak in the potential range of −0.3 V and 0.2 V and P2 peak in the range of −0.6 V and −0.3 V were associated to electrochemical oxidation of glucose into gluconolactone, while the N1 peak in the potential range of −0.65 and −0.25 V originated from further oxidation or removal of the intermediates and the reduction of Pd oxides. In contrast, nanostructured Ag is inactive for electrochemical glucose detection . We further summarized the mass activities of bimetallic PdAg NWs with different compositional ratios based on the peak intensities of P1 (Figure d).…”

Section: Resultsmentioning

confidence: 99%

“…In contrast, nanostructured Ag is inactive for electrochemical glucose detection. [36,37] We further summarized the mass activities of bimetallic PdAg NWs with different compositional ratios based on the peak intensities of P1 (Figure 3d). Obviously, ultrathin Pd 2 Ag 1 singlecrystalline NWs displayed the best performance toward electrochemical detection of glucose.…”

Section: Resultsmentioning

confidence: 99%

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An Electrochemical Non‐Enzymatic Glucose Sensor Based on Ultrathin PdAg Single‐Crystalline Nanowires

Sun

et al. 2020

ChemPlusChem

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Electrochemical non-enzymatic sensors have great potential for prompt and efficient detection of glucose. Herein, a novel, highly efficient electrochemical non-enzymatic glucose sensor is reported that is based on ultrathin PdAg single-crystalline nanowires (NWs). Ultrathin PdAg NWs are fabricated by a facile one-pot aqueous synthesis through an in situ growth strategy with an amphiphilic surfactant as the template. A comparison of the activities of PdAg NWs with different compositional ratios and nanostructures shows that ultrathin Pd 2 Ag 1 NWs hold the best performance toward electrochemical detection of glucose with an operable sensitivity of 11.6 μA mM À 1 cm À 2 and a linear response range of 0.1-8 mM. Structural and compositional features of the Pd 2 Ag 1 NWs allow an excellent selectivity, rapid response, and good long-term stability for electrochemical glucose sensor. This work thus provides a new possibility for the rational design and synthesis of noble-metal-based nanomaterials for non-enzymatic sensors.[a] Dr.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

An Electrochemical Non‐Enzymatic Glucose Sensor Based on Ultrathin PdAg Single‐Crystalline Nanowires

Sun

et al. 2020

ChemPlusChem

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“…Ren et al devised a sensitive electrochemical sensor to detect nitrobenzene on immobilized silver NPs (AgNP)-PME- MWCNT on a GCE . It has been found that the modified electrode had an effective electrocatalytic contribution to reduce NBz and remarkably declined the nitrobenzene overpotential; therefore, the peak current enhanced greatly compared with the bare GCE or the other modified electrodes.…”

Section: Polymer Nanocomposites-based Electrochemical Sensors For The...mentioning

confidence: 99%

Recent Developments in Polymer Nanocomposite-Based Electrochemical Sensors for Detecting Environmental Pollutants

Tajik

Beitollahi

Nejad

et al. 2021

Ind. Eng. Chem. Res.

163

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The human population is generally subjected to diverse pollutants and contaminants in the environment like those in the air, soil, foodstuffs, and drinking water. Therefore, the development of novel purification techniques and efficient detection devices for pollutants is an important challenge. To date, experts in the field have designed distinctive analytical procedures for the detection of pollutants including gas chromatography/mass spectrometry and atomic absorption spectroscopy. While the mentioned procedures enjoy high sensitivity, they suffer from being laborious, expensive, require advanced skills for operation, and are inconvenient to deploy as a result of their massive size. Therefore, in response to the above-mentioned limitations, electrochemical sensors are being developed that enjoy robustness, selectivity, sensitivity, and real-time measurements. Considerable advancements in nanomaterials-based electrochemical sensor platforms have helped to generate new technologies to ensure environmental and human safety. Recently, investigators have expanded considerable effort to utilize polymer nanocomposites for building the electrochemical sensors in view of their promising features such as very good electrocatalytic activities, higher electrical conductivity, and effective surface area in comparison to the traditional polymers. Herein, the first section of this review briefly discusses the most important methods for polymer nanocomposites synthesis, such as in situ polymerization, direct mixing of polymer and nanofillers (melt-mixing and solution-mixing), sol–gel, and electrochemical methods. It then summarizes the current utilization of polymer nanocomposites for the preparation of electrochemical sensors as a novel approach for monitoring and detecting environmental pollutants which include heavy metal ions, pesticides, phenolic compounds, nitroaromatic compounds, nitrite, and hydrazine in different mediums. Finally, the current challenges and future directions for the polymer nanocomposites-based electrochemical sensing of environmental pollutants are outlined.

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Nanocarbon material-supported conducting poly(melamine) nanoparticle-modified screen-printed carbon electrodes for highly sensitive determination of nitrofuran drugs by adsorptive stripping voltammetry

Chiu

et al. 2018

Anal Bioanal Chem

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The toxicity of nitrofuran drugs has attracted great attention, and the reported electroanalytical methods suffered limited sensitivity. In this work, a sensitive electrochemical assay in the cathodic region is developed to determine four nitrofuran derivatives, including nitrofurantoin (NFT), nitrofurazone (NFZ), furaltadone (FTD), and furazolidone (FZD). The screen-printed carbon electrode (SPCE) was used as the electrode substrate, and the sensing surface was composed of multi-walled carbon nanotube (MWCNT) and conducting poly(melamine) (PME). The overoxidation-pretreated MWCNTs affect the surface morphology of the electrodeposited PME and, thus, the interaction with nitrofuran drugs. The characteristics of the nanocomposite-modified electrode surfaces were well characterized by field emission scanning electron microscopy (FE-SEM), X-ray photoelectron spectroscopy (XPS), and surface water contact angle experiments. The nanocomposite-modified electrodes exhibited excellent adsorption and electrochemical reduction of nitrofurans by cyclic voltammetry. The proposed assay exhibited a linear range of sub-micro to micro molar concentrations for the four drugs under the optimized differential pulse voltammetric (DPV) technique. The detection limits were found to be in the nanomolar ranges. The developed assay was applied to detect NFT in two real samples, and the results showed good recoveries that ranged from 99.0 to 104.8% and 98.0 to 103.2% for milk and lake water samples, respectively. Graphical abstract ᅟ.

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Nitrobenzene electrochemical sensor based on silver nanoparticle supported on poly-melamine functional multi-walled carbon nanotube

Cited by 15 publications

References 40 publications

An Electrochemical Non‐Enzymatic Glucose Sensor Based on Ultrathin PdAg Single‐Crystalline Nanowires

An Electrochemical Non‐Enzymatic Glucose Sensor Based on Ultrathin PdAg Single‐Crystalline Nanowires

Recent Developments in Polymer Nanocomposite-Based Electrochemical Sensors for Detecting Environmental Pollutants

Nanocarbon material-supported conducting poly(melamine) nanoparticle-modified screen-printed carbon electrodes for highly sensitive determination of nitrofuran drugs by adsorptive stripping voltammetry

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