The photocatalytic technology was applied to reduce formaldehyde. A photocatalytic filter used is made of the porous ceramics, is coated with TiO2 and has a three-dimensional structure. The experiment to reduce formaldehyde in the air was conducted by circulating the air through the filter irradiated with UV light in a 1m3 air chamber. The result showed that the formaldehyde was almost completely oxidized into carbon dioxide when the intensity of UV light is over 2.9mW/cm2. The removal performance of formaldehyde was improved as the intensity of UV light increased or as one more photocatalytic unit or two were set in series.
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机译：施用光催化技术以减少甲醛。使用的光催化过滤器由多孔陶瓷制成，涂有TiO 2并具有三维结构。通过在1M3空气室中用UV光照射的过滤器循环空气来进行减少空气中的甲醛的实验。结果表明，当UV光的强度超过2.9mW / cm 2时，甲醛几乎完全被氧化成二氧化碳。随着UV光的强度增加或更有光催化单元或两种串联设定，甲醛的去除性能得到改善。
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