Conductometric sensor for gaseous sulfur-mustard simulant by gold nanoparticles anchored on ZnO nanosheets prepared via microwave irradiation

Lee, Minkyung; Kim, Min Young; Kim, Jihee; Park, Chul Oh; Choa, Ha Eun; Lee, Seung Yong; Park, Myung Kyu; Min, Hyegi; Lee, Kyu Hyoung; Lee, Wooyoung

doi:10.1016/j.snb.2023.133726

Cited by 9 publications

(1 citation statement)

References 70 publications

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“…Au/ZnO has been fabricated by various conventional methods, such as co-precipitation (Y. Li, Chen, & Zhao, 2018), co-sputtering (Pal et al, 2001), ion sputtering (Dai, Ding, Chen, & Fu, 2023), microwave irradiation (M. Lee et al, 2023;Mishra & Satpati, 2022), hydrothermal (Dai et al, 2023), one-pot coordinationcalcination (Lin et al, 2022), ion implantation (Macková et al, 2022), and green method (Syahjoko Saputra et al, 2021). The sonochemical method is a simple, fast, nontoxic, and environment-friendly synthesis technique (C. Li et al, 2023), where acoustic cavitation is produced when ultrasonic waves pass through a liquid media (McKenzie, Karimi, Ashokkumar, & Qiao, 2019;Yang Teh, Yeong Wu, & Ching Juan, 2017).…”

Section: Introductionmentioning

confidence: 99%

Sonochemical Synthesis, Characterization, and Photocatalytic Performance Evaluation of Au/ZnO Nanocomposite for Methyl Orange Degradation

Chowdhury,

Fatema,

Afrin

et al. 2023

ejtas

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This study examines the impact of gold (Au) incorporation on zinc oxide (ZnO) nanoparticles. Both pure ZnO and Au/ZnO nanocomposite have been synthesized using a unique and environmentally friendly sonochemical approach. The as-synthesized Au/ZnO nanocomposite was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and ultraviolet-visible (UV-vis) spectroscopic techniques. Under UV-visible irradiation, the photocatalytic effectiveness of ZnO nanoparticles and Au/ZnO nanocomposites for the degradation of dye was examined. The results demonstrated that the nanocomposite has greater photocatalytic activity than ZnO nanoparticles. This is due to the effective electron transfer from ZnO to Au prolonging the lifetime of photogenerated holes, which play the most important role in the dye degradation process.

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Section: Introductionmentioning

confidence: 99%

Sonochemical Synthesis, Characterization, and Photocatalytic Performance Evaluation of Au/ZnO Nanocomposite for Methyl Orange Degradation

Chowdhury,

Fatema,

Afrin

et al. 2023

ejtas

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Au- ZnFe2O4 hollow microspheres based gas sensor for detecting the mustard gas simulant 2-chloroethyl ethyl sulfide

Yang,

Qin,

Pan

et al. 2024

ANAL. SCI.

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Mustard gas, a representative of blister agents, poses a severe threat to human health. Although the structure of 2-chloroethyl ethyl sulfide (2-CEES) is similar to mustard gas, 2-CEES is non-toxic, rendering it a commonly employed simulant in related research. ZnFe2O4-based semiconductor gas sensors exhibit numerous advantages, including structural stability, high sensitivities, and easy miniaturization. However, they exhibit insufficient sensitivity at low concentrations and require high operating temperatures. Owing to the effect of electronic and chemical sensitization, the gas-sensing performance of a sensor may be remarkably enhanced via the sensitization method of noble metal loading. In this study, based on the morphologies of ZnFe2O4 hollow microspheres, a solvothermal method was adopted to realize different levels of Au loading. Toward 1 ppm of 2-CEES, the gas sensor based on 2 wt.% Au-loaded ZnFe2O4 hollow microspheres exhibited a response sensitivity twice that of the gas sensor based on pure ZnFe2O4; furthermore, the response/recovery times decreased. Additionally, the sensor displayed excellent linear response to low concentrations of 2-CEES, outstanding selectivity in the presence of several common volatile organic compounds, and good repeatability, as well as long-term stability. The Au-loaded ZnFe2O4-based sensor has considerable potential for use in detecting toxic chemical agents and their simulants. Graphical abstract

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Synthesis of ZnO nanorods loaded with SnO2 cubes and the mechanism of improved ethanol sensing performance with DFT calculation

Du,

Zhang,

Shan

et al. 2024

Materials Science in Semiconductor Processing

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Conductometric sensor for gaseous sulfur-mustard simulant by gold nanoparticles anchored on ZnO nanosheets prepared via microwave irradiation

Cited by 9 publications

References 70 publications

Sonochemical Synthesis, Characterization, and Photocatalytic Performance Evaluation of Au/ZnO Nanocomposite for Methyl Orange Degradation

Sonochemical Synthesis, Characterization, and Photocatalytic Performance Evaluation of Au/ZnO Nanocomposite for Methyl Orange Degradation

Au- ZnFe2O4 hollow microspheres based gas sensor for detecting the mustard gas simulant 2-chloroethyl ethyl sulfide

Synthesis of ZnO nanorods loaded with SnO2 cubes and the mechanism of improved ethanol sensing performance with DFT calculation

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