Nonenzymatic Amperometric Sensor for Nitrite Detection Based on a Nanocomposite Consisting of Nickel Hydroxide and Reduced Graphene Oxide

Wang, Yong; Cao, Wei; Yin, Chang; Zhuang, Qianfen; Ni, Yongnian

doi:10.1002/elan.201800627

Cited by 17 publications

(8 citation statements)

References 46 publications

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“…The polyNiCo_GCE showed much better nitrite oxidation capability compared to the polyCo_GCE and polyNi_GCE sensors. These results are also comparable to the previously reported Ni and Co based nitrite sensors. , These analyses confirm that the synthesized SMP material is highly effective for preparing an electrochemical nitrite sensor.…”

Section: Resultssupporting

confidence: 90%

“…Ni and Co metals have been extensively used as electrocatalysts for nitrite sensing due to their excellent ability for oxidizing nitrite species. , On the other hand, bisterpyrdine ligands are one of the most utilized ligands for constructing metallo-SMP assemblies. Such ligands show multidenticity properties through their N-heterocycles and provide a strong chelating effect by exhibiting a substantial binding affinity with metals through π–π* bonding from the metal to the ligand. , The unfunctionalized bisterpyridine moiety can coordinate with two hetero metals with similar coordination structures and gives rise to a randomly distributed heterometallic SMP .…”

Section: Introductionmentioning

confidence: 99%

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Fabrication of Ni–Co-Based Heterometallo-Supramolecular Polymer Films and the Study of Electron Transfer Kinetics for the Nonenzymatic Electrochemical Detection of Nitrite

Islam

Hasan

Akter

et al. 2019

ACS Appl. Polym. Mater.

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Here, we report the synthesis of a bimetallic supramolecular polymer (SMP) for fabricating an electrochemical nitrite sensor and study the reaction mechanism of the selective oxidation of nitrite by cyclic voltammetry (CV) simulation through the kinetic parameters evaluation. Symmetrical ligand-bearing terpyridine moieties [4′,4⁗-(1,4-Phenylene)bis(2,2′:6′,2″-terpyridine)] were complexed with Ni(II) and Co(II) salts (Co:Ni:Ligand-0.5:0.5:1) (polyNiCo) to synthesize a heterometallo-SMP. The polyNiCo was characterized by using UV/vis spectrophotometric titration, SEM, EDS, FT-IR, EIS, and CV techniques. The molecular weight of the polymer was determined from the intrinsic viscosity measurement using the Mark–Houwink–Sakurada equation. While the spectroscopic data revealed the structural morphologies and properties of the polyNiCo, electroanalytical characterization studies confirmed the high electrochemical activity and suitability of the polyNiCo heterometallo-SMP as an electrochemical sensor. A glassy carbon electrode (GCE) was used as the base for fabricating ployNiCo_GCE and also for detecting the nitrite analyte through the oxidation process. The kinetics for the irreversible oxidation mechanism were studied using scan-rate and pH-variation methods. The electroactive surface area, electron transfer coefficient, heterogeneous electron transfer rate constant, etc. parameters were studied using the Butler–Volmer equations. We simulated the CV for the nitrite oxidation process at the polyNiCo_GCE based on the analysis of the kinetic parameters obtained from the electroanalytical experiments. An exceptional agreement between the experimental and the simulated CV was found, which confirmed the validity of the calculated kinetic parameters. Using CV and amperometry techniques, we studied the effectiveness of the polyNiCo_GCE for detecting the nitrite analyte at different concentrations. The amperometry technique showed a wide linear range of 2.5 μM–1.73 mM and a limit of detection (LOD) of 0.45 μM. The sensor was also tested for interference, stability, and reproducibility. Real sample analysis was performed using both CV and amperometry techniques, and the obtained results were compared with the results obtained by using standard solutions.

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Section: Resultssupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Fabrication of Ni–Co-Based Heterometallo-Supramolecular Polymer Films and the Study of Electron Transfer Kinetics for the Nonenzymatic Electrochemical Detection of Nitrite

Islam

Hasan

Akter

et al. 2019

ACS Appl. Polym. Mater.

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“…Transition metal hydroxides have been proved to have high electro catalytic activity [120]. Wang et al synthesized Ni(OH) 2 /RGO nanocomposites by one-step solvothermal method for selective detection of nitrite [121]. The nano-material has a large surface area and good electro catalytic ability, which improves the catalytic performance of nitrite oxidation.…”

Section: Other Metal Compoundsmentioning

confidence: 99%

Application of Graphene-Based Materials for Detection of Nitrate and Nitrite in Water—A Review

Wang

et al. 2019

Sensors

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Nitrite and nitrate are widely found in various water environments but the potential toxicity of nitrite and nitrate poses a great threat to human health. Recently, many methods have been developed to detect nitrate and nitrite in water. One of them is to use graphene-based materials. Graphene is a two-dimensional carbon nano-material with sp 2 hybrid orbital, which has a large surface area and excellent conductivity and electron transfer ability. It is widely used for modifying electrodes for electrochemical sensors. Graphene based electrochemical sensors have the advantages of being low cost, effective and efficient for nitrite and nitrate detection. This paper reviews the application of graphene-based nanomaterials for electrochemical detection of nitrate and nitrite in water. The properties and advantages of the electrodes were modified by graphene, graphene oxide and reduced graphene oxide nanocomposite in the development of nitrite sensors are discussed in detail. Based on the review, the paper summarizes the working conditions and performance of different sensors, including working potential, pH, detection range, detection limit, sensitivity, reproducibility, repeatability and long-term stability. Furthermore, the challenges and suggestions for future research on the application of graphene-based nanocomposite electrochemical sensors for nitrite detection are also highlighted.Sensors 2020, 20, 54 2 of 35 deaths. Nitrite in drinking water can irreversibly convert hemoglobin into methemoglobin, which results in a decrease in oxygen carrying capacity in the blood [5]. It can react with secondary amines to produce n-nitrosamines, which are likely to lead to gastric cancer [6]. Since nitrate is converted into nitrite in the digestive tract, it also very harmful to the human body [7]. It can also lead to the unnatural reproduction of aquatic plants and algae, leading to "red tides" and the death of fish [8,9]. The United States (U.S.) Environmental Protection Agency has limited the nitrite and nitrate content in drinking water to 1 mg/L and 10 mg/L [10] and other countries have made similar regulations. The concentration of nitrate and nitrite in water has become one of the indexes for evaluating water quality. Therefore, the detection of nitrate and nitrite in water samples at low concentrations has been the focus of research [11].So far, many methods have been used to detect nitrate and nitrite, such as spectrophotometry [12][13][14], chemiluminescence [15,16], chromatography [17], fluorescence [18,19] and electrochemical methods [20][21][22]. Among them, the electrochemical method is one of the most commonly used detection methods because of its advantages of being low cost, fast, direct and high efficiency [23]. However, the sensitivity and accuracy of the electrodes are reduced because of disturbance by other substances. Bare electrodes need higher applied potential, which limits the application of bare electrodes [24]. Therefore, electrochemical techniques based on modified electrodes have been extensively...

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“…Raman spectra of GO and GOÀ Fc were used to analyze coupling between Fc structure and GO. As shown in Figure S1a, the G band caused by the in-plane vibration of the sp 2 carbon atom of GO was at 1600 cm À 1 , and the disorder D band appeared at 1358 cm À 1 [34,35]. In the Raman spectrum of GOÀ Fc, the D and G bands were transferred to 1351 and 1587 cm À 1 , respectively.…”

Section: Characterization Of Different Materialsmentioning

confidence: 94%

The Synthesis of Chitosan Decorated Reduced Graphene Oxide‐Ferrocene Nanocomposite and its Application in Electrochemical Detection Rhodamine B

Xing

Niu

et al. 2019

Electroanalysis

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Chitosan (CS) decorated reduced graphene oxide‐Ferrocene nanocomposite (RGO−Fc−CS) was synthesized by a one‐pot reaction. In the synthesis process of RGO−Fc−CS, GO−Fc was successfully self‐assembled via the π–π interaction, which had the features of large surface area and the high load. Then GO‐Fc and CS linked via one‐pot under alkaline conditions. The FT−IR, TGA, SEM were employed to characterize the successful synthesis of RGO−Fc−CS composites. A miniature electrochemical system was fabricated by RGO−Fc−CS modified glassy carbon electrode (expressed as RGO−Fc−CS/GCE) for the sensitive detection of RhB enantiomers via DPV. Electrochemical results revealed that the RGO−Fc−CS/GCE exhibited high molecular recognition toward RhB. Due to the synergy between the RGO−Fc and CS, the RGO−Fc−CS/GCE showed a linear range of 0.001–70 μM with a LOD of 0.5 nM, indicating that RGO−Fc−CS/GCE has broad application prospects to simplify monitor RhB real‐time.

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Nonenzymatic Amperometric Sensor for Nitrite Detection Based on a Nanocomposite Consisting of Nickel Hydroxide and Reduced Graphene Oxide

Cited by 17 publications

References 46 publications

Fabrication of Ni–Co-Based Heterometallo-Supramolecular Polymer Films and the Study of Electron Transfer Kinetics for the Nonenzymatic Electrochemical Detection of Nitrite

Fabrication of Ni–Co-Based Heterometallo-Supramolecular Polymer Films and the Study of Electron Transfer Kinetics for the Nonenzymatic Electrochemical Detection of Nitrite

Application of Graphene-Based Materials for Detection of Nitrate and Nitrite in Water—A Review

The Synthesis of Chitosan Decorated Reduced Graphene Oxide‐Ferrocene Nanocomposite and its Application in Electrochemical Detection Rhodamine B

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