Abstract
Triethylamine is an effective indicator for evaluating seafood freshness. Therefore, a device capable of real-time monitoring of triethylamine is required. In this study, WO3 nanomaterials prepared using sodium tungstate as the tungsten source were used to assemble semiconductor sensors to detect low concentrations of triethylamine at low temperatures. To investigate the effects of different structural guides on the sensor performance, citric and oxalic acids were used as structural guiding agents to obtain WO3 nanoplates and nanoparticles, respectively. At an optimal operating temperature of 255 °C, the WO3 nanoplate sensor exhibited a response of 56.57 to 10 ppm triethylamine, with a sensitivity of 50 in the tested concentration range of 2.5–25 ppm triethylamine, and response/recovery times of 9 s/69 s. WO3 nanoplates performed better than that of WO3 nanoparticles. In addition, the effect of different structural guiding agents on the sensor properties was explored, and the response mechanism of the semiconductor sensor was investigated. WO3 nanoplate shows fast response time, high selectivity and low detection limit, that is an excellent TEA sensor, which makes it more promising used in food detection for practical applications.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
