| Title |
Reduction of Nitrogen Oxide by a Photocatalyst Ventilation Duct System |
| Authors |
Yong Woo Song ; Seong Eun Kim ; Yong Gi Jung ; Jae Yun Yoo ; Jin Chul Park |
| DOI |
https://doi.org/10.6110/KJACR.2020.32.11.526 |
| Keywords |
이산화티탄; 광촉매; 질소산화물; 실물 실험; 덕트 장비; 자외선 램프 TiO2; Photocatalyst; NOx; Mock-up test; Duct system; UV lamp |
| Abstract |
This study was conducted to prepare a plan to apply TiO2 photocatalysts to ventilation systems to reduce NOx, a representative particulate matter precursor, to solve the recent particulate matter problem. Ventilation is a typical way to reduce enclosed indoor pollutants. However, other than applying filters, the ability to reduce precursor substances is limited. Therefore, this study intended to verify NOx reduction by applying a TiO2 photocatalyst coating material to the inside of the ventilation duct and exposing it to UV-A light. The experiment was conducted by changing the reference light and light volume of ISO 22197-1. The results showed that the NOx reduction was proportional to the UV-A light volume change and that the duct ventilation system could reduce NOx by more than 95%, even at low light volume. |