MWCNT/Ti‐doped ZnO nanocomposite as electrochemical sensor for detecting glutamate and ascorbic acid

Pitiphattharabun, Siraprapa; Meesombad, Kornkamon; Panomsuwan, Gasidit; Jongprateep, Oratai

doi:10.1111/ijac.13879

Cited by 13 publications

(3 citation statements)

References 50 publications

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“…Previously, the solution combustion method has been applied in the synthesis of zinc oxide for the electrochemical detection of dopamine [58]. In addition, multiwalled carbon nanotubes (MWCNTs)/Ti-doped ZnO composites have been synthesized via the solution combustion method followed by hydrothermal impregnation [59]. The gas sensing performance of selfassembled porous ZnO/In 2 O 3 heterostructures through the solution combustion method has been examined towards Cl 2 and other hazardous gases detection [60].…”

Section: Combustion Routementioning

confidence: 99%

Recent advances in the synthesis of ZnO-based electrochemical sensors

Akhoondi,

Ahmad,

Nawaz Sharif

et al. 2023

Synth. Sinter.

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Until now, various composites based on zinc oxide (ZnO) have been investigated in electrochemical sensors. The physical and electrochemical properties of ZnO and its structure can improve the selectivity, sensitivity, and adaptability of nanocomposites. Therefore, the focus on the fabrication of cheap ZnO-based electrodes with affordable and easy transportability has increased. In addition, the electrochemical behavior is affected by the structure and morphology of the ZnO-based composite in detecting pollutants such as volatile organic compounds, heavy metals, and toxins. Furthermore, ZnO-based nanostructures are efficient in the fabrication of electrochemical sensors in the food industry, pharmaceutical analysis, and medical diagnostics. In this review, various techniques in the synthesis of ZnO-based electrodes and their effect on the particle size, shape, and morphology of compounds have been collected. Since the performance of chemical sensors has a direct relationship with the structure of the composite used in its electrode, it is necessary to discuss the new production methods, new concepts, strategies, and challenges. Additionally, new gains highlight recent developments and sensing of various analytes in the monitoring systems. These sensors have demonstrated a strong growth acceleration which could lead to the development of recent technologies. At last, an optimistic outlook is provided on the future of ZnO-based sensors and their challenges.

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Section: Combustion Routementioning

confidence: 99%

Recent advances in the synthesis of ZnO-based electrochemical sensors

Akhoondi,

Ahmad,

Nawaz Sharif

et al. 2023

Synth. Sinter.

View full text Add to dashboard Cite

show abstract

“…Disappointingly, despite the complicated and costly synthesis process of the precisely structured nanowire, the sensitivity and linear range of detection were far removed from expectations. Since then, even though the non-enzymatic glutamate sensors have been developed for ten years, there are still a limited number of works of literature published [18][19][20][21][22][23]. Islam et al reported RuO 2 -doped ZnO nanoparticles based on a non-enzymatic glutamate sensor, which reports a high sensitivity of up to 9.6 × 10 −5 µA/mM•cm 2 and the lowest detection limit of 0.0001 µM [22].…”

Section: Introductionmentioning

confidence: 99%

Porous Carbon Boosted Non-Enzymatic Glutamate Detection with Ultra-High Sensitivity in Broad Range Using Cu Ions

Han

Tong

et al. 2022

Nanomaterials

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A non-enzymatic electrochemical sensor, based on the electrode of a chitosan-derived carbon foam, has been successfully developed for the detection of glutamate. Attributed to the chelation of Cu ions and glutamate molecules, the glutamate could be detected in an amperometric way by means of the redox reactions of chelation compounds, which outperform the traditional enzymatic sensors. Moreover, due to the large electroactive surface area and effective electron transportation of the porous carbon foam, a remarkable electrochemical sensitivity up to 1.9 × 104 μA/mM∙cm2 and a broad-spectrum detection range from nM to mM scale have been achieved, which is two-orders of magnitude higher and one magnitude broader than the best reported values thus far. Furthermore, our reported glutamate detection system also demonstrates a desirable anti-interference ability as well as a durable stability. The experimental revelations show that the Cu ions chelation-assisted electrochemical sensor with carbon foam electrode has significant potential for an easy fabricating, enzyme-free, broad-spectrum, sensitive, anti-interfering, and stable glutamate-sensing platform.

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“…To achieve high-efficient sensing analysis, the performance of MOSs can be further improved by surface modification, doping and heterostructures construction. For example, ZnObased composites, like MWCNT/Ti-doped ZnO, [21] ZnO/rGO, [22] ZnO/polypyrrole, [23] ZnO/gÀ C 3 N 4 , [24] and NiOÀ ZnO, [25] show enhanced sensing property. Particularly, ZnO has photocatalytic function and widely application.…”

Section: Introductionmentioning

confidence: 99%

Constructing Netlike Nanosheets of ZnO/BiOCl with Heterojunction as Robust Material for Electrochemical Amine Detection

Ahmed

Zhao

Tian

et al. 2022

Chemistry A European J

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The electrochemical sensing is a potential method for detection of trace toxic substance. Herein, the heterojunction of netlike ZnO/BiOCl nanosheets was constructed for the enhanced electrochemical detection of ammonia. Cyclic voltammetry and linear sweep voltammetry were used to investigate the electrochemical performance. The results show that the ZnO/BiOCl‐modified electrode exhibits higher sensitivity towards ammonia compared with the ZnO and BiOCl‐based electrodes, which is ascribed to band structure and fast electron transfer. The high response of 11.8 μA mM−1 and a low detection limit (LOD) of 0.25 μM are achieved. In addition, the ZnO/BiOCl material exhibits high selectivity, repeatability and stability. The better linear relationship between concentration and current (R2=0.99) is significant for quantitative detection of ammonia, implying that netlike ZnO/BiOCl nanosheets can serve as electrochemical sensing platform for detecting toxic substance. This research provides a strategy for fabricating two‐dimensional netlike materials and regulating heterojunctions used for electrochemical application.

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MWCNT/Ti‐doped ZnO nanocomposite as electrochemical sensor for detecting glutamate and ascorbic acid

Cited by 13 publications

References 50 publications

Recent advances in the synthesis of ZnO-based electrochemical sensors

Recent advances in the synthesis of ZnO-based electrochemical sensors

Porous Carbon Boosted Non-Enzymatic Glutamate Detection with Ultra-High Sensitivity in Broad Range Using Cu Ions

Constructing Netlike Nanosheets of ZnO/BiOCl with Heterojunction as Robust Material for Electrochemical Amine Detection

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