An Automobile Exhaust Sensor Utilizing Cataluminescence on Nanosized Fe3O4/SiO2

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Instrumentation was constructed for the detection of automobile exhaust utilizing cataluminescence method on nanosized Fe3O4/SiO2.The microspheres with a diameter of about 450 nm, were synthesized by the hydrolyzation of tetraethyl orthosilicate (TEOS). The scanning electronic microscopy (SEM), transmission electronmicroscopy (TEM) and energy dispersive spectroscopy (EDS) were employed to characterize the microspheres. Automobile exhaust, a harmful gas, was selected as a model to investigate the cataluminescence sensing properties of the SiO2/Fe3O4 microspheres in the current work. Results indicated that the microspheres exhibited outstanding cataluminescence properties. The performance of the SiO2/Fe3O4 microspheres based sensor instrument suggested the promising application of the SiO2/Fe3O4 nanomaterials for the detection of automobile exhaust.

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121-124

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February 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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