Reduced graphene oxide-supported smart plasmonic AgPtPd porous nanoparticles for high-performance electrochemical detection of 2,4,6-trinitrotoluene

Zhang, Xinxin; Huo, Hongyue; Ma, Kongshuo; Zhao, Zhenlu

doi:10.1039/d2nj00434h

Cited by 2 publications

(1 citation statement)

References 33 publications

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“…It is, therefore, crucial to have a user-friendly, accurate, sensitive, and cost-effective real-time detection of TNT in order to build a green and safe society. In recent years, electrochemical detection has attracted considerable interest due to its convenient operation, high sensitivity and selectivity, fast response, inherent redox activity, cost-effectiveness, and portability. − …”

Section: Introductionmentioning

confidence: 99%

ZnO₂/CNT Nanocomposite-Based Electrochemical Sensors for the Detection of Trinitrotoluene

Sharma,

Jain,

Kumar

et al. 2023

ACS Chem. Health Saf.

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Global pollution of soil and water supplies due to the leftover dumping of nitroexplosives is a critical issue. Increasing mining and construction activity leads to a significant growth in the trinitrotoluene (TNT) market, making it a lethal contaminant that should be detected early to prevent consumption. Here, in this work, a highly sensitive voltammetric trinitrotoluene (TNT) sensor has been fabricated by modifying a gold electrode (AuE) with a ZnO 2 /carbon nanotube (CNT) nanocomposite (ZnO 2 /CNT@AuE). The ZnO 2 /CNT nanocomposite was synthesized by the coprecipitation method. Morphological and chemical analyses of the synthesized nanostructure was done through different high-end characterization techniques [Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM)]. The electrocatalytic reduction behavior of the electrochemical probe, ZnO 2 /CNT@AuE, toward TNT was studied in phosphate buffer solution (PBS, pH 7.0) using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) techniques. The ZnO 2 /CNT nanocomposite deposited on the electrode surface improves the conductivity and active sites for electrocatalytic reduction, significantly enhancing the designed sensor's performance. The fabricated sensor exhibited an outstanding sensing performance and a rapid response when exposed to TNT with a higher sensitivity (80.53 μA cm −2 μM −1 ) and a lower detection limit (3.4 nM). In addition to the excellent efficacy, the newly developed sensor showed high reproducibility and long-term stability on repeated use. The sensor detects TNT over a wide linear range (4−500 nm) and has good anti-interference capabilities. The ZnO 2 /CNT@AuE probe has been applied successfully to detect TNT in real water samples. Moreover, electrochemical applications can be expanded by implementing the present electrochemical strategy.

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Section: Introductionmentioning

confidence: 99%

ZnO₂/CNT Nanocomposite-Based Electrochemical Sensors for the Detection of Trinitrotoluene

Sharma,

Jain,

Kumar

et al. 2023

ACS Chem. Health Saf.

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Highly Sensitive Fluorescence Detection of 2,4,6‐Trinitrophenol Based on Hydrogen‐Bonded Organic Framework

Zhang

Shen

et al. 2023

Zeitschrift anorg allge chemie

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The highly sensitive detection of carcinogenic pollutant 2,4,6‐trinitrophenol (PA) is of great significance for environmental protection and human health. Based on the organic building block 1,3,6,8‐tetrakis (p‐benzoic acid) pyrene (H4TBAPy), the porous nano‐scale hydrogen‐bonded organic framework material (PFC‐1) was successfully synthesized. The large π‐π conjugated structure makes it to show excellent fluorescence characteristics. PFC‐1 showed excellent selective fluorescence detection for PA. PFC‐1 exhibited significant quenching effect upon the addition of PA. The quenching efficiency Ksv of PFC‐1 material for PA is 9.14×104 M−1 and the limit of detection (LOD) reaches 0.75 μM. PFC‐1 exhibits excellent fluorescence sensing performance for PA, which greatly expands the potential application of hydrogen‐bonded organic framework materials in the field of fluorescence sensing.

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Reduced graphene oxide-supported smart plasmonic AgPtPd porous nanoparticles for high-performance electrochemical detection of 2,4,6-trinitrotoluene

Abstract: Engineering favorable plasmonic-based catalytically active nanostructure has been an essential part of TNT sensing due to their synergistically enhanced catalytic performance. However, how to increase the catalytically dynamic species and...

Cited by 2 publications

References 33 publications

ZnO₂/CNT Nanocomposite-Based Electrochemical Sensors for the Detection of Trinitrotoluene

ZnO₂/CNT Nanocomposite-Based Electrochemical Sensors for the Detection of Trinitrotoluene

Highly Sensitive Fluorescence Detection of 2,4,6‐Trinitrophenol Based on Hydrogen‐Bonded Organic Framework

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Reduced graphene oxide-supported smart plasmonic AgPtPd porous nanoparticles for high-performance electrochemical detection of 2,4,6-trinitrotoluene

Abstract: Engineering favorable plasmonic-based catalytically active nanostructure has been an essential part of TNT sensing due to their synergistically enhanced catalytic performance. However, how to increase the catalytically dynamic species and...

Cited by 2 publications

References 33 publications

ZnO2/CNT Nanocomposite-Based Electrochemical Sensors for the Detection of Trinitrotoluene

ZnO2/CNT Nanocomposite-Based Electrochemical Sensors for the Detection of Trinitrotoluene

Highly Sensitive Fluorescence Detection of 2,4,6‐Trinitrophenol Based on Hydrogen‐Bonded Organic Framework

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Product

Resources

About

ZnO₂/CNT Nanocomposite-Based Electrochemical Sensors for the Detection of Trinitrotoluene

ZnO₂/CNT Nanocomposite-Based Electrochemical Sensors for the Detection of Trinitrotoluene