Paper NM-TuP3
VOC Degradation Ability of VO_x-TiO₂ Mixed Nanoparticles Attached on Glass Fiber in the Flow Chamber Test

Tuesday, December 9, 2014, 4:00 pm, Room Mauka

Vo_x-TiO₂ nanocomposite samples made by one-pot synthesis showed the various catalytic activities depending on the calcination temperature. Photocatalytic activity of VO_x-TiO₂ nanoparticles fabricated at various temperatures were characterized by the degradation of methylene blue in aqueous solutions under UV irradiation. Nanocomposites show significant enhancement of decomposition of methylene blue and the reason is considered by the synergistic effect between two different materials. In this study, the prepared nanocomposite catalysts were attached on glass fiber by cross-linking method and photodegradation abilities were tested by the change of VOC gas concentration in a closed chamber. For the photocatalytic analysis of the prepared nanoparticles, the absorption spectra are measured by UV-visible spectrophotometer and the bandgap analysis are performed by Kubelka-Munk theory. VOC removal abilities are quantified by the variation of p-xylene concentration in the closed chamber. Obtained results show that the as-prepared Vo_x-TiO₂ nanocomposites have different degradation abilities depending on the calcination temperature and vanadium atomic percentage.