Photocatalyst Property of Nano-Titanium Dioxide to Prevent Color Change of Poplar (Populus deltoides) Wood

This study was conducted to analyze optical properties of nano-titanium dioxide by radiation UV. In this study, is used to poplar samples for measure analyze optical that are sensitive to UV radiation and will be color change easily. The samples impregnated by nano titanium dioxide with three concentrations of 5/0, 75/0, and 1%. Then in artificial weathering system in time intervals of 100, 200 and 400 h placed in a condition which was applied only the UV radiation. Color changes measured using spectrophotometer. Results showed that in treated samples with nano titanium dioxide created little color change rather than untreated samples. So that the effect of nano titanium dioxide protective against UV damage after this period was clearly observeable to untreated samples. Browning in samples that were impregnated with nano titanium dioxide, significantly reduced while the color change occurred in all control samples. Of this observations, concluded that nano titanium dioxide can be used in formulations for wood protection against UV damage.