2001 年 50 巻 6Appendix 号 p. 132-137
The photo-catalytic mechanism of the TiO2 crystallites was studied for formaldehyde adsorbed in the carbonized TiO2-woody composites. To do so, the effects of the presence of oxygen and/or water were investigated on photo-catalytic activities of the composites. As a result, it became clear that photo-catalysis of the carbonized TiO2-woody composites requires water to decompose formaldehyde into CO2. However, the oxygen is not essential for its decomposition. Based on this requirement, the photo-catalytic mechanism of the TiO2 crystallites was discussed for adsorbed formaldehyde in the carbonized TiO2-woody composites.
