Song Yong-Woo, Kim Seong-Eun, Yoo Min-Sang, Park Jin-Chul
School of Architecture and Building Science, Chung-Ang University, Seoul 06794, Republic of Korea.
Graduate School, Chung-Ang University, Seoul 06794, Republic of Korea.
Materials (Basel). 2023 Sep 25;16(19):6399. doi: 10.3390/ma16196399.
This study experimentally confirmed the effect of TiO photocatalysts on the removal of indoor air pollutants. In the experiment, toluene, a representative indoor air pollutant, was removed using a coating agent containing TiO photocatalysts. Conditions proposed by the International Organization for Standardization (ISO) were applied mutatis mutandis, and a photoreactor for an experiment was manufactured. The experiment was divided into two categories. The first experiment was conducted under ISO conditions using the TiO photocatalyst coating agent. In the second experiment, the amount of ultraviolet-A (UV-A) light was varied depending on the lamp's service life, and the volume of the reactor was varied depending on the number of contaminants. The results showed that the TiO photocatalytic coating agent reduced the effect of toluene. This reduction effect can be increased as a primary function depending on the changes in the amount of UV-A light and reactor volume. However, because toluene is decomposed in this study, additional organic pollutants such as benzene and butadiene can be produced. Because these pollutants are decomposed by the TiO photocatalysts, the overall reduction performance may change. Nonetheless, TiO photocatalysts can be used to examine the effect of indoor pollutant reduction in indoor ventilation systems and building materials.
本研究通过实验证实了二氧化钛光催化剂对去除室内空气污染物的效果。在实验中，使用含有二氧化钛光催化剂的涂层剂去除了典型的室内空气污染物甲苯。国际标准化组织（ISO）提出的条件被类推应用，并制造了用于实验的光反应器。实验分为两类。第一个实验是在ISO条件下使用二氧化钛光催化剂涂层剂进行的。在第二个实验中，紫外线A（UV-A）光的量根据灯的使用寿命而变化，反应器的体积根据污染物的数量而变化。结果表明，二氧化钛光催化涂层剂降低了甲苯的含量。这种降低效果可以作为主要函数随着UV-A光量和反应器体积的变化而增加。然而，由于本研究中甲苯被分解，可能会产生额外的有机污染物，如苯和丁二烯。由于这些污染物会被二氧化钛光催化剂分解，整体降低性能可能会发生变化。尽管如此，二氧化钛光催化剂可用于研究室内通风系统和建筑材料中室内污染物减少的效果。
