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以日用荧光灯和自然光为照射光源 ,研究了TiO2 薄膜的光催化灭菌性能 ,对比了具有不同紫外 可见吸收边波长薄膜的灭菌性能 .结果显示 ,在日用荧光灯照射下吸收边波长在 384nm的TiO2 薄膜具有较优的灭菌性能 ,而吸收边波长为 2 96nm的薄膜未显示明显的灭菌效果 .在室外自然光条件下 ,薄膜显示了灭菌性能 .
The photocatalytic sterilization of TiO2 thin films was studied by using fluorescent lamps and natural light as illuminating light sources, and the sterilization performance of films with different wavelength of UV-visible absorption was compared. The results showed that the absorption wavelength of the TiO2 films was 384nm TiO2 film has better sterilization performance, while the absorption edge wavelength of 2 96nm film showed no significant sterilization effect in outdoor natural light conditions, the film shows the sterilization performance.