Study on the Gas Sensitivity Properties of TiO2 Nanoparticles Modified by ZnO

YONG-MEI LIU, SI-FAN ZHANG, MIN LIU, FANG LI, HAN ZHANG

Abstract


TiO2 nanomaterials and ZnO doped TiO2 nanomaterials were synthesized by sol-gel method. The gas sensing properties of ZnO-doped TiO2 nanomaterials were investigated by using a parathermal gas sensor. Studies have shown that the responsiveness of ZnO-doped gas sensor to ethanol gas is increased from 80% to 87%, and the response recovery time is shortened to (1.5s, 1s). This method improves the gas sensitivity of the sensor.

Keywords


Sol-gel method, TiO2, ZnO, Responsivity, Gas sensitivityText


DOI
10.12783/dteees/peems2019/33967

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