Zinc oxide-copper sulfide semiconductor nano-heterostructure for low-level electrochemical detection of 4-nitrotoluene

Chakraborty, Urmila; Kaur, Ishneet; Chauhan, Aman; Kaur, Navneet; Kaur, Gurpreet; Chaudhary, Ganga Ram

doi:10.1016/j.electacta.2023.142160

Cited by 14 publications

(4 citation statements)

References 48 publications

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“…[5][6][7][8][9] One study also reported cancer in mice which was due to the exposure of 4NT. 2,[10][11][12] Hence, the determination of 4NT is the most important task to avoid the negative influences of the 4NT in the human being and aquatic life including environment. In this regard, analytical methods such as liquid chromatography, fluorescence, gas chromatography, chemiluminescence, and electrochemical sensing have been deployed for the sensing of 4NT.…”

Section: -Nitrophenol (4ntmentioning

confidence: 99%

“…In this regard, analytical methods such as liquid chromatography, fluorescence, gas chromatography, chemiluminescence, and electrochemical sensing have been deployed for the sensing of 4NT. 5,[11][12][13] The conventional methods such as chromatography are costly, time consuming and requires expert handling which are the main limitations of the conventional methods. [14][15][16][17][18] The electrochemical methods have received the significant attention because of the decent handling, low cost, simple and rapid sensing response, selectivity, portability and eco-friendliness.…”

Section: -Nitrophenol (4ntmentioning

confidence: 99%

“…6,8,9 In addition, various metal oxides and nanostructured materials have garnered prominent interest of the scientific community due to their excellent properties. [10][11][12][13] Previous reports exhibited the use of zinc oxide, manganese oxide (α-MnO 2 ), nickel oxide, graphene, copper oxide, and cerium oxide in the construction of electrochemical sensors towards the determination of various biomolecules and toxic substances. [19][20][21][22][23][24][25][26][27] The α-MnO 2 is one of the most widely used material for various optoelectronic and electrochemical applications.…”

Section: -Nitrophenol (4ntmentioning

confidence: 99%

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Hydrothermal Preparation of Manganese Dioxide/Sulfur Doped Reduced Graphene Oxide and Construction of 4-Nitrotoluene Sensor

Khan,

Ahmad,

Khan

et al. 2024

ECS J. Solid State Sci. Technol.

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Nitro-groups containing compounds are widely used in various applications but are considered highly toxic compounds. 4-nitrotoluene (4NT) belongs to the nitro-aromatic compounds and is a highly hazardous water contaminant. Thus, exploring new materials with excellent physiochemical and electrochemical properties is desirable for the construction of efficient 4NT sensors. The present study reports the fabrication of manganese dioxide/sulfur-doped reduced graphene oxide (α-MnO2/S@rGO) via hydrothermal synthesis procedure. The well-characterized α-MnO2/S@rGO was employed as a catalyst for the construction of α-MnO2/S@rGO modified screen printed carbon electrode (SPCE) for the detection of 4NT using cyclic voltammetry (CV). The α-MnO2/S@rGO modified electrode exhibits good electro-catalytic properties for the detection of 4NT compared to the bare SPCE, α-MnO2-, or S@rGO-modified electrodes. A reasonable detection limit of 0.5 μM with sensitivity of 1.97 μA.μM−1.cm−2 was obtained using α-MnO2/S@rGO modified electrode. The α-MnO2/S@rGO modified electrode demonstrated considerable selectivity for the sensing of 4NT in presence of various electro-active species. Note that the combination of catalytic α-MnO2 and conductive S@rGO present excellent synergistic interactions which improved the performance of the α-MnO2/S@rGO-modified electrode.

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Section: -Nitrophenol (4ntmentioning

confidence: 99%

Section: -Nitrophenol (4ntmentioning

confidence: 99%

Section: -Nitrophenol (4ntmentioning

confidence: 99%

See 1 more Smart Citation

Hydrothermal Preparation of Manganese Dioxide/Sulfur Doped Reduced Graphene Oxide and Construction of 4-Nitrotoluene Sensor

Khan,

Ahmad,

Khan

et al. 2024

ECS J. Solid State Sci. Technol.

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show abstract

“…Further, the prolonged consumption of 4-NT leads to severe health issues such as cardiovascular troubles, emphysema, dizziness, skin irritation, intoxication, endocrine disruption, and distraction in the central nervous system. Thus, the detection of 4-NT has become a serious concern [ 3 ]. So far, numerous analytical techniques, such as chemiluminescence [ 4 ], gas chromatography [ 5 ], fluorescence spectroscopy [ 6 ], liquid chromatography [ 7 ], and electrochemical analysis, have been employed in the determination of 4-NT [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Carbon Nanofiber Incorporated with CuWO4 for Sensitive Electrochemical Detection of 4-Nitrotoluene in Water Samples

Meenakshi

Sakthinathan

Chiu

2023

Sensors

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In the current work, copper tungsten oxide (CuWO4) nanoparticles are incorporated with carbon nanofiber (CNF) to form CNF/CuWO4 nanocomposite through a facile hydrothermal method. The prepared CNF/CuWO4 composite was applied to the electrochemical detection of hazardous organic pollutants of 4-nitrotoluene (4-NT). The well-defined CNF/CuWO4 nanocomposite is used as a modifier of glassy carbon electrode (GCE) to form CuWO4/CNF/GCE electrode for the detection of 4-NT. The physicochemical properties of CNF, CuWO4, and CNF/CuWO4 nanocomposite were examined by various characterization techniques, such as X-ray diffraction studies, field emission scanning electron microscopy, EDX-energy dispersive X-ray microanalysis, and high-resolution transmission electron microscopy. The electrochemical detection of 4-NT was evaluated using cyclic voltammetry (CV) the differential pulse voltammetry detection technique (DPV). The aforementioned CNF, CuWO4, and CNF/CuWO4 materials have better crystallinity with porous nature. The prepared CNF/CuWO4 nanocomposite has better electrocatalytic ability compared to other materials such as CNF, and CuWO4. The CuWO4/CNF/GCE electrode exhibited remarkable sensitivity of 7.258 μA μM−1 cm−2, a low limit of detection of 86.16 nM, and a long linear range of 0.2–100 μM. The CuWO4/CNF/GCE electrode exhibited distinguished selectivity, acceptable stability of about 90%, and well reproducibility. Meanwhile, the GCE/CNF/CuWO4 electrode has been applied to real sample analysis with better recovery results of 91.51 to 97.10%.

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Metal sulfide-based electrochemical sensors for the detection of organic water contaminants

Shingange,

Jijana,

Saasa

et al. 2025

Metal Sulfide Nanomaterials for Environmental Applications

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Zinc oxide-copper sulfide semiconductor nano-heterostructure for low-level electrochemical detection of 4-nitrotoluene

Cited by 14 publications

References 48 publications

Hydrothermal Preparation of Manganese Dioxide/Sulfur Doped Reduced Graphene Oxide and Construction of 4-Nitrotoluene Sensor

Hydrothermal Preparation of Manganese Dioxide/Sulfur Doped Reduced Graphene Oxide and Construction of 4-Nitrotoluene Sensor

Fabrication of Carbon Nanofiber Incorporated with CuWO4 for Sensitive Electrochemical Detection of 4-Nitrotoluene in Water Samples

Metal sulfide-based electrochemical sensors for the detection of organic water contaminants

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