UV-Activated NO2 Gas Sensing by Nanocrystalline ZnO: Mechanistic Insights from Mass Spectrometry Investigations
نویسندگان
چکیده
In this work, the photostimulated processes of O2 and NO2 molecules with surface ZnO under UV radiation were studied by in situ mass spectrometry temperature range 30–100 ?C. Nanocrystalline needle-like was synthesized decomposition basic zinc carbonate at 300 ?C, concentration oxygen vacancies it controlled reductive post-annealing an inert gas 170 The materials characterized XRD, SEM, low-temperature nitrogen adsorption (BET), XPS, Raman spectroscopy, PL spectroscopy. Irradiation samples light causes photoabsorption both NO2. photoadsorption properties are compared its defective structure gas-sensitive to A model sensor response photoactivation is proposed.
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ژورنال
عنوان ژورنال: Chemosensors
سال: 2022
ISSN: ['2227-9040']
DOI: https://doi.org/10.3390/chemosensors10040147