Abstract
Although Bi2WO6 has been widely used in a variety of fields, its underlying application in gas sensing have been seldom reported. In this work, the bulk Bi2WO6 with cracks were fabricated via one-step hydrothermal method for the first time, and its crystal structure and morphology were characterized by many techniques. The static sensor testing system was employed to investigate the gas sensing performance of bulk Bi2WO6. The results indicate that Bi2WO6 is capable of detecting triethylamine gas with ultrafast response time (7 s) and recovery speed (8 s), high selectivity, which showing the Bi2WO6 is a promising materials for fabricating triethylamine sensors. In addition, the gas sensing mechanism of Bi2WO6 was also discussed.
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