This is a case study of photocatalytic coating on the exterior walls of a special nursing home for the elderly (anti-dirt measures).

The decomposition of organic dirt using photocatalysts and self-cleaning will break down the dirt on the exterior walls of the nursing home, allowing it to wash away with the power of rain and create a clean environment.

■Titanium Dioxide Raw Material By coating a titanium dioxide aqueous solution, which serves as the raw material for photocatalysts, on the ceilings and walls of buildings, it exhibits effects such as dirt resistance, deodorization, antibacterial properties, antiviral properties, and mold prevention. ■Indoor Photocatalyst When light hits the surface of the indoor photocatalyst, reactive oxygen species are generated on the surface, breaking down organic substances that cause dirt and odors into harmless water and carbon dioxide. ■Outdoor Photocatalyst When rain falls on the surface of the outdoor photocatalyst, the hydrophilic effect causes water to spread thinly beneath the dirt, contributing to self-cleaning as the dirt flows away with the water, thus maintaining the aesthetic of the building and reducing cleaning costs. ■Duration of Photocatalytic Effect Since titanium dioxide, the raw material for photocatalysts, is inorganic, it does not degrade due to ultraviolet light or other factors, and the effect continues for a long time as long as the coating substrate's paint surface or wallpaper does not peel off.

Photocatalysts and various wall materials (exterior and interior walls, etc.)