Abstract
The detection of trichloroethylene has attracted much attention because trichloroethylene has an important effect on human health. The sensitivity of the SnO2/RGO gas sensor arrays to 200 ppm trichloroethylene in air was investigated. The adsorption and surface reactions of trichloroethylene were investigated in 250−350℃ by in-situ diffuse reflection Fourier transform infrared spectroscopy (DIRFTS) on SnO2/RGO films. Dichloroacetyl chloride (DCAC), single chloroacetic acid salt(CH2ClCOO-), COCl2, HCl, H2O, CO and CO2 surface species are formed during trichloroethylene adsorption at 250−350°C. A possible mechanism of the reaction process is discussed.
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