Mechanism analysis of Indoor Formaldehyde decomposition by Nano-titanium Ozide
The effects of nano-titanium oxide dosage, sunlight exposure time, adsorption time on the formaldehyde removal efficiency were studied. The nano-titanium oxide was characterized by a scanning electron microscope and X-ray diffraction analysis. The catalysis mechanisms of nano-titanium oxide on formaldehyde removal efficiency were discussed. The results show that formaldehyde removal efficiency of nano-titanium oxide was 42.5％ and 59.6％ without and with sunlight; it was 7％ and 22.6％ higher than that of active carbon respectively. Nano-TiO2 can directly react in the range of suns ray wavelength to decompound formaldehyde. The results may be used to provide a useful basis for further applying nano-TiO2 to indoor air purification in the near future.
Nano-TiO2 ptotocatalysis formaldehyde adsorption
Shuqin Wang Yiming Zhang Manyin Hu
School of Environmental Science and Engineering, North China Electric Power University, Baoding, P. R. China
国际会议
上海
英文
2954-2956
2008-05-16（万方平台首次上网日期，不代表论文的发表时间）