Particle and Aerosol Research Vol. 6, No. 4, December 2010 |
ISSN : 1738-8716 (Print) ISSN : 2287-8130 (Online) |
Evaluation on the Photodegradation Rate of NOx Using High Efficiency Visible-Light Responsive Photocatalysts
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Abstracts
Titania is widely used as an effective photocatalyst for the photodegradation of environmental pollutants in air. In
this study, novel N-doped ZrO2/TiO2 photocatalysts were synthesized via sol-gel method and characterized by UV-Vis
spectrophotometer, transmission electron microscope, and X-ray diffractometer. N-doped ZrO2/TiO2 photocatalysts were
nano-sized with an average particle size of about 20 nm. The XRD pattern of N-doped ZrO2/TiO2 photocatalysts showed
both anatase and rutile phases. The photocatalytic activity of N-doped ZrO2/TiO2 photocatalysts was evaluated by degradation
of NO under UV and visible light irradiation at various parameters such as amount of photocatalyst, concentration
of NO, and intensity of light. The photocatalytic activity of N-doped ZrO2/TiO2 photocatalysts was effective for the
enhancement of the degradation of NO and higher than that of TiO2 photocatlysts under UV and visible light
Keywords£ºTiO2, Nanoparticle, Visible light, NO, Photocatalytic activity
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