| Summary: | 碩士 === 靜宜大學 === 應用化學系 === 105 === In this study, sensing material TiO2 polymeric nanospheres are prepared by hydrothermal synthesis from carbon spheres and titanium (IV) n-butoxide. For detecting formaldehyde gas, the sensing materials were characterized by X-ray Diffraction (XRD), high resolution surface area and porosimetry analyser (ASAP/BET), field emission scanning electron microscope (FESEM), transmission electron microscope (TEM), energy dispersive spectrometer (EDS) and elemental analyzer. It exhibited a high response to 10 ppm at room temperature, response time (T90) is 74 seconds and recovery time (Tr90) is 102 seconds. It might be used in detecting formaldehyde gas and improve quality of air in the future.
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