This is a case study of photocatalytic coating on the exterior wall of a dental clinic (anti-fouling measures).

The photocatalytic decomposition of organic contaminants and self-cleaning will break down the substances causing dirt in dental buildings, allowing them to wash away with rain and create a clean environment.

By applying a titanium dioxide aqueous solution, which is the raw material for photocatalysts, to the ceilings and walls of buildings, it exhibits effects such as anti-soiling, deodorization, antibacterial properties, antiviral properties, and mold prevention. When light hits the surface of the indoor photocatalyst application, reactive oxygen species are generated on the surface, breaking down organic substances that cause dirt and odors into harmless water and carbon dioxide. For outdoor photocatalyst applications, when it rains, a hydrophilic effect causes water to spread thinly beneath the dirt, allowing for self-cleaning as the surface dirt washes away, contributing to the maintenance of the building's aesthetics and reducing cleaning costs. Since the raw material for photocatalysts, titanium dioxide, is inorganic, it does not degrade due to ultraviolet rays or other factors, and its effects last for a long time. A glass coating on floor tiles creates a strong water-repellent surface. The water-repellent effect prevents the penetration of waste water, such as urine, making it easier to clean, and also reduces odors caused by bacteria and other sources.

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