CristalACTiV™ TiO₂: Sustaining Air Quality Through NOx Abatement

As part of Tronox’s Specialty business, CristalACTiV™ titanium dioxide (TiO₂) products have been at the forefront of environmental innovation, helping reduce nitrogen oxide (NOx) emissions and improve air quality since the 1980s.

CristalACTiV™ TiO₂ plays a vital role in Selective Catalytic Reduction (SCR) systems used in coal- and gas-fired power plants, heavy-duty diesel vehicles, off-road equipment, and marine engines to reduce NOx emissions. For over two decades, catalysts based on our products have been trusted by leading truck manufacturers to meet increasingly stringent global regulations. As emission standards evolve, so do our solutions—ensuring compliance and cleaner air.

Yet even with source-level controls, NOx concentrations often exceed safe limits in urban environments. CristalACTiV™ TiO₂ provides a secondary line of defense when formulated into photocatalytic materials. Activated by UV light, these materials catalyze reactions that convert NOx into harmless compounds, helping to purify the air we breathe.

Today, these ultrafine TiO₂ materials are also engineered to support emerging technologies in catalysis, energy storage, and electronics—contributing to reduced waste, lower greenhouse gas (GHG) emissions, and enhanced energy efficiency.

This commitment to air quality is deeply rooted in Tronox’s Environmental, Social, and Governance (ESG) strategy. We were there when NOx abatement technologies first emerged. We are here today—driving innovation and supporting global sustainability goals. And we will be there tomorrow—continuing to develop advanced TiO₂ solutions that contribute to a cleaner, healthier planet.

To learn more about CristalACTiV™ products for environmental catalysis and photocatalysis, visit:

• Environmental Catalysis: https://www.cristalactiv.com/industries/environmental-catalysis/
• Photocatalysis: https://www.cristalactiv.com/industries/photocatalysis/
• Ultrafine & Specialty TiO₂: https://www.tronox.com/products/ultrafine-and-specialty-titanium-dioxide