科研之友
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摘要
The green synthesis of gas-sensing materials, which monitor volatile organic compounds, avoid synthesis-induced pollution, and thus is a major challenge faced by scientific researchers. Herein, we report a microwave-assisted green synthesis of Ag-decorated SnO2 nanorods with water being used as solvent and comparatively non-toxic chemicals being used as reactant. The as-prepared product was characterised by X-ray diffraction, scanning electron microscopy and transmission electron microscopy. The results showed onedimensional Ag-decorated SnO2 nanorods constituted of tetragonal rutile phase of SnO2 and cubic phase of Ag were successfully prepared. Ethanol was used as a model system for measuring gas-sensing properties and an enhanced gas-sensing property was found due to Ag decoration. Moreover, a linear dependence of the sensitivity on the ethanol concentration was observed.
