Abstract
Light irradiation enhanced ZnO/ZnFe2O4 sensors for triethylamine gas detections have been reported in this paper. ZnO/ZnFe2O4 composites with a hexagonal nanostructure were synthesized by calcination of Zn, Fe layered double hydroxides (Zn2Fe-LDH) at certain temperatures. Focusing on the general problem that the metal oxide gas sensors for triethylamine detection often have high working temperatures around 200°C, the assistance approach of light irradiation has been conducted in our work. Under the light irradiation, the gas sensing measurement indicates that the sample calcined at 600°C shows considerable response to triethylamine at the working temperature of 80°C. For comparison, the introduction of light irradiation has lowered the working temperature markedly, which might have potential to monitor TEA in industrial production in the future.
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