Riduzione inquinanti tossici

Dramatic reduction of toxic pollutants

Photocatalysis and the reduction of atmospheric pollutants

The photocatalytic materials developed by Global Engineering activate, in the presence of natural or artificial light, a continuous oxidation process of atmospheric pollutants. The principle is based on the use of titanium dioxide (TiO₂), capable of triggering chemical reactions that transform the main harmful substances present in the air into stable mineral residues that are chemically harmless.

Nitrogen oxides (NOx), carbon monoxide (CO), sulfur dioxide (SO₂), volatile organic compounds (VOCs) and carbon residues produced by traffic and urban activities are progressively degraded before they can accumulate in the environment.

An active and renewable action over time

The photocatalytic mechanism cannot be compared to filtration or passive barriers. The reaction is automatically reactivated whenever the treated surface is exposed to light, ensuring a constant and renewable action, without the consumption of electrical energy or the use of additional chemical substances.

Pollutants are not retained or masked, but decomposed at their source, directly contributing to the mitigation of atmospheric pollution.

Application evidence in urban and infrastructure environments

Documented experiments and applications demonstrate the effectiveness of photocatalytic treatments in real environments with high environmental pressure, such as:

  • high-traffic urban roads
  • noise barriers
  • architectural surfaces exposed to smog and exhaust gases

The antimicrobial properties of photocatalytic coatings also find application in:

  • residential indoor environments
  • schools and educational facilities
  • hospitals and healthcare environments
  • public and commercial spaces
  • underpasses, tunnels and semi-enclosed environments
  • surfaces exposed to humidity and mould formation

In the absence of natural light, suitable artificial light sources can be used to activate the process.

Key benefits

  • Reduction of nitrogen oxides (NOx) and volatile organic compounds (VOCs)
  • Degradation of pollutants generated by vehicular traffic
  • Improvement of air quality in urban and infrastructural environments
  • Contribution to the protection of public health
  • Support for environmental sustainability and urban regeneration strategies