Rapid synthesis of cypress-like CuO nanomaterials and CuO/MWCNTs composites for ultra-high sensitivity electrochemical sensing of nitrite

Zhang, Guangliang; Pan, Peng; Yang, Zhengchun; Niu, Huimin; Li, Jun; Zhang, Cong; Meng, Jiaojie; Song, Yanfei; Bao, Qiwen; Wei, Jun; Li, Gang; Liao, Zhenyu

doi:10.1016/j.microc.2020.105439

Cited by 18 publications

(4 citation statements)

References 49 publications

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“…7 (b) shows a good linear fitting relationship, relational equation I(μA) = −0.0233 C H2O2 (μM) - 4.9193, R 2 = 0.997. According to the standard calculation method (S/N = 3) [52] , and the formula for the detection limit: cL = K ∙ Sb /m [53] , giving a detection limit of 0.24 μM and a sensitivity of 118.7 μAmM −1 cm −2 . Fig.…”

Section: Resultsmentioning

confidence: 99%

One-step synthesis of nanosilver embedding laser-induced graphene for H2O2 sensor

Shen

Pan

et al. 2023

Synthetic Metals

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Section: Resultsmentioning

confidence: 99%

One-step synthesis of nanosilver embedding laser-induced graphene for H2O2 sensor

Shen

Pan

et al. 2023

Synthetic Metals

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“…CuO is a P-type semiconductor with narrow bandgap (E g ) of 1.2 eV, which shows attractive properties such as high electrical conductivity, good stability, efficient electrode in photovoltaics, high mechanical strength, high catalytic activity and high temperature durability. Moreover, CuO is low cost and abundant non-toxic semiconductor [25][26][27][28][29] . The CuO based materials are widely used in gas sensor, photocatalyst and lithium ion electrode materials.…”

Section: −mentioning

confidence: 99%

Structural and morphological tuning of Cu-based metal oxide nanoparticles by a facile chemical method and highly electrochemical sensing of sulphite

Sudha

Murugadoss

Thangamuthu

2021

Sci Rep

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A facile one-step chemical method is introduced for the successful synthesis of Cu2O, CuO and CuNa2(OH)4 crystal structures and their electrochemical properties were also investigated. X-ray diffraction studies revealed that these copper-based oxide nanoparticles display different crystal structures such as cubic (Cu2O), monoclinic (CuO) and orthorhombic [CuNa2(OH)4]. The microstructural information of nanoparticles was investigated by transmission electron microscopy. It shows attractive morphologies of different orientation such as rod like structure, nanobeads and well-aligned uniform nanorod for Cu2O, CuO and CuNa2(OH)4, respectively. Electrochemical sensing of sulphite (SO32−) on these three copper-based oxide modified electrodes was investigated. Among the three different crystal structures, CuO shows promising electrocatalytic activity towards oxidation of sulphite. A linear variation in peak current was obtained for SO32− oxidation from 0.2 to 15 mM under the optimum experimental condition. The sensitivity and detection limit were in the order of 48.5 µA cm−2 mM−1 and 1.8 µM, respectively. Finally, practical utility of CuO modified electrode was demonstrated for the estimation of sulphite in commercial wine samples.

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“…Thus, the g-C 3 N 4 /Bi 2 S 3 -adapted electrode is recommended and preferred for NO 2 – detection. The obtained results are compared with previously reported NO 2 – detections in Table . − …”

Section: Resultsmentioning

confidence: 70%

Sea-Urchin-Like Bi₂S₃ Microstructures Decorated with Graphitic Carbon Nitride Nanosheets for Use in Food Preservation

Kogularasu

Sriram

Wang

et al. 2022

ACS Appl. Nano Mater.

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Although nitrite (NO2 –) is listed as a poisonous inorganic pollutant that is dangerous to humans and other creatures, it is widely used in food preservatives and agricultural products. It is frequently detected in many foods, water, environmental systems, and biological samples. In recent times, many techniques for detecting and monitoring NO2 – have been proposed. Among them, the electrochemical method has been receiving particular attention due to its ease of operation. At the same time, nanocrystals of metal sulfide materials have gained the attention of researchers due to a wide range of materials with efficiently tunable properties. This article presents a rational hydrothermal approach to the synthesis of size- and morphology-controlled hierarchically grown bismuth sulfide (Bi2S3) nanorods. Changes are made to the prime parameter; temperature yields the g-C3N4 nanosheets covered on the sea-urchin-like structure of Bi2S3 nanorods. The textural characteristics, surface morphology, and chemical compositions of g-C3N4/Bi2S3 have been studied using a selection of spectroscopic methods. Accordingly, the produced catalysts were examined to detect the electrochemically active NO2 –. The g-C3N4/Bi2S3-modified electrode attained a broad linear range (0.001–385.4 μM) and a higher sensitivity with a lower detection limit (0.4 nM). Therefore, g-C3N4/Bi2S3 hierarchically grown through the hydrothermal route could be a promising sensing platform to determine NO2 – in real-time.

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Rapid synthesis of cypress-like CuO nanomaterials and CuO/MWCNTs composites for ultra-high sensitivity electrochemical sensing of nitrite

Cited by 18 publications

References 49 publications

One-step synthesis of nanosilver embedding laser-induced graphene for H2O2 sensor

One-step synthesis of nanosilver embedding laser-induced graphene for H2O2 sensor

Structural and morphological tuning of Cu-based metal oxide nanoparticles by a facile chemical method and highly electrochemical sensing of sulphite

Sea-Urchin-Like Bi₂S₃ Microstructures Decorated with Graphitic Carbon Nitride Nanosheets for Use in Food Preservation

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Rapid synthesis of cypress-like CuO nanomaterials and CuO/MWCNTs composites for ultra-high sensitivity electrochemical sensing of nitrite

Cited by 18 publications

References 49 publications

One-step synthesis of nanosilver embedding laser-induced graphene for H2O2 sensor

One-step synthesis of nanosilver embedding laser-induced graphene for H2O2 sensor

Structural and morphological tuning of Cu-based metal oxide nanoparticles by a facile chemical method and highly electrochemical sensing of sulphite

Sea-Urchin-Like Bi2S3 Microstructures Decorated with Graphitic Carbon Nitride Nanosheets for Use in Food Preservation

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Product

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Sea-Urchin-Like Bi₂S₃ Microstructures Decorated with Graphitic Carbon Nitride Nanosheets for Use in Food Preservation