Surface Modification of ZnO Nanowires with CuO: A Tool to Realize Highly-Sensitive H2S Sensor

Goyal, C. P.; Goyal, Deepak; Ramgir, Niranjan S.; Navaneethan, M.; Hayakawa, Y.; Muthamizhchelvan, C.; Ikeda, Hiroya; Ponnusamy, S.

doi:10.1134/s1063783421030070

Cited by 8 publications

(5 citation statements)

References 33 publications

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“…The method for synthesis of ZnO/CuO can be done by chemical (Das and Srivastava, 2017;Goyal et al, 2021;Shinde et al, 2022;Saravanakkumar et al, 2018;Alzahrani, 2018;Jayaramudu et al, 2019) and not chemical method such as a biological method (Fouda et al, 2020;Adeyemi et al, 2022;Cao et al, 2021). The major synthesis of metal nanoparticles is divided into three methods: physical, chemical, and biological methods (Naveed Ul Haq et al, 2017) .…”

Section: Introductionmentioning

confidence: 99%

“…The researchers made a combination between metal oxide nanoparticles 1 and metal oxide nanoparticles 2 such as ZnO and CuO nanoparticles. This combination aims to increase sensitive biosensors (Solanki et al, 2011;Goyal et al, 2021), antibacterial (Saravanakkumar et al, 2018 , photocatalysts (Fouda et al, 2020) , and cytotoxicity properties (Cao et al, 2021) .…”

Section: Introductionmentioning

confidence: 99%

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Synthesis, Characterization of Chitosan-ZnO/CuO Nanoparticles Film, and its Effect as an Antibacterial Agent of Escherichia coli

Fatoni,

Rendowati,

Sirumapea

et al. 2023

Sci. Technol. Indones

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The film of chitosan- ZnO/CuO nanoparticles was synthesized. This study were the synthesis and characterization of the chitosan-ZnO/CuO nanoparticles film and its effect as an antibacterial of Escherichia coli. The ZnO, CuO, and ZnO/CuO were biosynthesized by biological method and for the synthesis of the chitosan-ZnO/CuO nanoparticles film, the casting method was adopted. The product was analyzed by FTIR spectroscopy, X-ray diffraction (XRD), and Scanning Electron Microscope (SEM), respectively. The product of chitosan-ZnO/CuO nanoparticles film as paper disk and agar disk diffusion method was selected to study an antibacterial agent of this product. The Zn-O or Cu-O group was observed at a peak between 468-675 cm−1 for ZnO and 503 and 619 cm−1 for CuO nanoparticles, respectively. ZnO, CuO, and ZnO/CuO nanoparticles are in the crystalline form and it has a crystallite size of 13.21, 13.21, and 11.49 nm respectively. After interacting with chitosan, the metal nanoparticles such as ZnO, CuO, and ZnO/CuO nanoparticles can change the crystalline form of chitosan to be amorphous form. The addition of ZnO, CuO, and ZnO/CuO nanoparticles in the chitosan will change the surface morphology of chitosan. Chitosan-ZnO/CuO nanoparticles film can inhibit the growth of Escherichia coli bacteria.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization of Chitosan-ZnO/CuO Nanoparticles Film, and its Effect as an Antibacterial Agent of Escherichia coli

Fatoni,

Rendowati,

Sirumapea

et al. 2023

Sci. Technol. Indones

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“…The response of traditional semiconductor adsorption sensors is based on a change in the resistance of the sensitive layer, which is due to a change in the depletion layer width near the surface of its crystal grains during interaction with gases [8][9][10]. Various metal oxides [11,12], their compounds and compositions [13,14], impurity-doped metal oxides [15,16] are usually used as sensitive materials. Meanwhile, the morphology of sensitive layers can be very diverse.…”

Section: Introductionmentioning

confidence: 99%

Gas sensitivity of nanostructured coatings based on zinc oxide nanorods under combined activation

et al. 2022

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This paper presents a study of the gas sensitivity of a nanostructured zinc oxide coating to isopropyl alcohol vapor during heating, ultraviolet irradiation, as well as simultaneous heating and irradiation. Simultaneous heating to 150oC and ultraviolet irradiation ensures an increase in the sensor layer response. A 10-fold decrease in the power consumption of an ultraviolet light-emitting diode results in a 1.2-fold decrease in the response of the sensor coating. Reducing the operating temperature of a gas sensor with low power consumption and achieving the required sensitivity can provide adsorption sensors integration into portable devices for monitoring ambient air quality. Keywords: zinc oxide, nanorods, gas sensor, UV irradiation, combined activation.

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“…Отклик традиционных полупроводниковых адсорбционных сенсоров основан на изменении сопротивления чувствительного слоя, которое обусловлено изменением ширины обедненной области вблизи поверхности его кристаллитов при взаимодействии с газами [8][9][10]. В качестве чувствительного материала, как правило, используются различные оксиды металлов [11,12], их соединения и композиции [13,14], оксиды металлов, легированные примесями [15,16]. При этом морфология чувствительных слоев может быть очень разнообразна.…”

Section: Introductionunclassified

Газочувствительность Наноструктурированных Покрытий На Основе Наностержней Оксида Цинка При Комбинированной Активации

Рябко¹,

Бобков²,

Налимова³

et al. 2022

Журнал Технической Физики

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This paper presents a study of the gas sensitivity of a nanostructured zinc oxide coating to isopropyl alcohol vapor during heating, ultraviolet irradiation, as well as simultaneous heating and irradiation. Simultaneous heating to 150 °C and ultraviolet irradiation ensures an increase in the sensor layer response. A 10-fold decrease in the power consumption of an ultraviolet light-emitting diode results in a 1.2-fold decrease in the response of the sensor coating. Reducing the operating temperature of a gas sensor with low power consumption and achieving the required sensitivity can provide adsorption sensors integration into portable devices for monitoring ambient air quality.

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Surface Modification of ZnO Nanowires with CuO: A Tool to Realize Highly-Sensitive H2S Sensor

Cited by 8 publications

References 33 publications

Synthesis, Characterization of Chitosan-ZnO/CuO Nanoparticles Film, and its Effect as an Antibacterial Agent of Escherichia coli

Synthesis, Characterization of Chitosan-ZnO/CuO Nanoparticles Film, and its Effect as an Antibacterial Agent of Escherichia coli

Gas sensitivity of nanostructured coatings based on zinc oxide nanorods under combined activation

Газочувствительность Наноструктурированных Покрытий На Основе Наностержней Оксида Цинка При Комбинированной Активации

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