Photocatalytic Concrete for Clean Air in Underground Tunnels

Credit: Korea Institute of Civil Engineering and Building Technology

An artificial light source has been installed, allowing the photocatalytic function to work even underground where natural light does not reach.

« Photocatalytic Concrete for Clean Air in Underground Tunnels

Credit: Korea Institute of Civil Engineering and Building Technology

The NOx concentration level decreased by approximately 18% 24 hours after the application of the photocatalytic concrete. This data represents the average value of the entire measurement period (2022.12.14. ~ 2023.01.12., 4 weeks).

« Photocatalytic Concrete for Clean Air in Underground Tunnels

Credit: Korea Institute of Civil Engineering and Building Technology

Mechanism of photocatalytic degradation of air pollutants on the surface of photocatalytic concrete.

« Photocatalytic Concrete for Clean Air in Underground Tunnels

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