Flower-like 3D MoS2 microsphere/2D C3N4 nanosheet composite for highly sensitive electrochemical sensing of nitrite

Wang, Lan; Fan, Zhaoya; Yue, Feng; Zhang, Shuo; Qin, Shucheng; Luo, Chao; Pang, Long; Zhao, Jian; Du, Jingjing; Jin, Baodan; Zhang, Hongzhong

doi:10.1016/j.foodchem.2023.137027

Cited by 20 publications

(8 citation statements)

References 38 publications

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“…36 Two peaks of Zr 3d at 185.6 and 183.1 eV were assigned to Zr 3d 3/2 and Zr 3d 5/2 , respectively, indicating the existence of Zr 4+ . 37 Electrochemical properties of UIO-66-NH2@ErGO/GCE.-To estimate the active area of the electrodes, the redox properties of the UIO-66-NH 2 @ErGO-COOH/GCE and GCE were studied in Fe(CN) 6 3−/4− (1 mM) solution containing 0.1 M KCl at different scan rates (0.02 to 0.3 V•s −1 ). The electrode active surface areas of the detected electrodes were calculated by the Randles-Sevcik Eq.…”

Section: Resultsmentioning

confidence: 99%

Simultaneous Determination of Magnolol and Honokiol Using a Glassy Carbon Electrode Modified by UIO-66-NH₂ and Electroreduced Carboxylated Graphene Oxide

Zhang,

et al. 2024

J. Electrochem. Soc.

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An electrochemical sensor for the simultaneous detection of magnolol (MAG) and honokiol (HON) was constructed based on the metal-organic framework, UIO-66-NH2, and electroreduced carboxylated graphene oxide (ErGO-GOOH). The UIO-66-NH2@ErGO-COOH coating was characterized by scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and electrochemical impedance spectroscopy. Cyclic voltammetry was applied to investigate the electrochemical behavior of MAG and HON on UIO-66-NH2@ErGO-COOH/GCE. The electroanalytical method for the simultaneous determination of MAG and HON was established using linear sweep voltammetry. Under optimal experimental conditions, a linear range of 0.05 ~ 8 μM and limits of detection of 16 and 7.0 nm for MAG and HON, respectively, were obtained. The sensor exhibited good repeatability, reproducibility, stability and anti-interference ability. The sensor was successfully applied to the simultaneous detection of MAG and HON in urine and serum samples with good recovery.

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Section: Resultsmentioning

confidence: 99%

Simultaneous Determination of Magnolol and Honokiol Using a Glassy Carbon Electrode Modified by UIO-66-NH₂ and Electroreduced Carboxylated Graphene Oxide

Zhang,

et al. 2024

J. Electrochem. Soc.

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“…16 Riahifar et al modified GCE with cysteine immobilized Fe 3 O 4 @Au core−shell nanoparticles (Fe 3 O 4 @ Au@Cys) and reduced graphene oxide (RGO) nanocomposite, which showed an even lower LoD (0.008 μM). 17 Additional examples include electrodeposited AuNP on Cubased metal−organic framework (Cu-MOF) modified GCE, 18 light-scribed RGO electrode functionalized with iron oxide nanoparticles and RGO (ION-RGO) nanocomposites, 19 poly(brilliant cresyl blue) (PBCP) on an electrochemically reduced graphene oxide (ERGO) at activated GCE, 20 flowerlike three-dimensional (3D) MoS 2 microspheres with twodimensional (2D) C 3 N 4 nanosheets decorated GCE, 21 and pore-confined silver nanoparticles (AgNP) incorporated into a porphyrinic zirconium-based metal−organic framework (Zr-MOF) at a fluorine-doped tin oxide (FTO) substrate, 22 among others.…”

Section: Nitrite (Nomentioning

confidence: 99%

Iron Oxide, Reduced Graphene Oxide, and Electrodeposited Gold Nanoparticle-Based Electrodes for Nanomolar Detection of Nitrite in Food

Gross,

Paterno

2024

ACS Appl. Nano Mater.

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The nitrite ion (NO2 –) is used as a preservative of food and drink and has been widely used in the food industry. Nonetheless, it is a potential precursor of nitrosamines, which are known for their carcinogenic activity. Therefore, monitoring of nitrite in foods and drinks is of paramount importance for food safety. Herein, we report a very sensitive electroanalytical method for the determination of nitrite in food samples, capable of detecting nitrite at the nanomolar level. For that purpose, a nanocomposite electrode comprising a multilayered film of iron oxide nanoparticles and reduced graphene oxide (ION-RGO) was decorated with electrodeposited gold nanoparticles (AuNP) and operated by electrochemical impedance spectroscopy (EIS). It is observed a synergistic combination of the electrocatalytic activity of ION-RGO, the electrical conductivity of AuNP, and the interrogation of the electrode within the charge-transfer frequency range, which mitigates unwanted capacitive effects and enhances the nitrite electrooxidation. Consequently, nitrite has been detected within a wide linear range (r 2 > 0.999) of 0.58–3019 μM and with a limit of detection of 2.4 nM. Owing to the improved adhesion of AuNP to the ION-RGO framework, the electrode is highly stable and lasts for at least 30 consecutive runs without losing its sensitivity. Additionally, the proposed method enables the determination of nitrite in sausage and milk samples, when it performs identically to a reference method at the 95% confidence level.

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“…However, MoS 2 is most unique in that it has a noncentrosymmetric structure and a direct energy gap, which is quite different from graphene, and its structure is shown in Figure a. In recent years, as a typical representative of two-dimensional transition metal sulfides (TMDs), MoS 2 has become a research hotspot in the field of emerging materials due to its unique physical and chemical properties, such as electrochemistry, sensors, medical treatment, photocatalysts, ion storage, and so on . At the same time, MoS 2 has good application prospects in energy storage and microwave absorption materials and devices. − …”

Section: Introductionmentioning

confidence: 99%

MoS₂-Based Nanocomposites for Microwave Absorption: A Review

Li,

et al. 2024

ACS Appl. Nano Mater.

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Molybdenum disulfide (MoS2), as a two-dimensional material, has a potential application prospect in microwave absorption, electromagnetic shielding, energy storage, electrochemistry, and other fields due to its unique structure, excellent electrical conductivity, abundant surface area, and good mechanical strength. In this paper, the microwave absorbing properties of MoS2-based composites are reviewed objectively, and the recent research achievements and progress in dielectric loss type and magnetic loss type composites are summarized. Then, the microwave absorption mechanism of MoS2-based composites is systematically analyzed in terms of dielectric loss and magnetic loss. At the same time, the application of MoS2-based microwave absorbing materials in current social needs is summarized including military radar stealth and civil electronic communication. In addition, the challenges and bottlenecks in the future development of microwave absorber materials are also presented.

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Flower-like 3D MoS2 microsphere/2D C3N4 nanosheet composite for highly sensitive electrochemical sensing of nitrite

Cited by 20 publications

References 38 publications

Simultaneous Determination of Magnolol and Honokiol Using a Glassy Carbon Electrode Modified by UIO-66-NH₂ and Electroreduced Carboxylated Graphene Oxide

Simultaneous Determination of Magnolol and Honokiol Using a Glassy Carbon Electrode Modified by UIO-66-NH₂ and Electroreduced Carboxylated Graphene Oxide

Iron Oxide, Reduced Graphene Oxide, and Electrodeposited Gold Nanoparticle-Based Electrodes for Nanomolar Detection of Nitrite in Food

MoS₂-Based Nanocomposites for Microwave Absorption: A Review

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Flower-like 3D MoS2 microsphere/2D C3N4 nanosheet composite for highly sensitive electrochemical sensing of nitrite

Cited by 20 publications

References 38 publications

Simultaneous Determination of Magnolol and Honokiol Using a Glassy Carbon Electrode Modified by UIO-66-NH2 and Electroreduced Carboxylated Graphene Oxide

Simultaneous Determination of Magnolol and Honokiol Using a Glassy Carbon Electrode Modified by UIO-66-NH2 and Electroreduced Carboxylated Graphene Oxide

Iron Oxide, Reduced Graphene Oxide, and Electrodeposited Gold Nanoparticle-Based Electrodes for Nanomolar Detection of Nitrite in Food

MoS2-Based Nanocomposites for Microwave Absorption: A Review

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Simultaneous Determination of Magnolol and Honokiol Using a Glassy Carbon Electrode Modified by UIO-66-NH₂ and Electroreduced Carboxylated Graphene Oxide

Simultaneous Determination of Magnolol and Honokiol Using a Glassy Carbon Electrode Modified by UIO-66-NH₂ and Electroreduced Carboxylated Graphene Oxide

MoS₂-Based Nanocomposites for Microwave Absorption: A Review