Helio Clean/Dyckerhoff

Research project on nitrogen oxide reduction

From 2009 to 2012, the “Helio Clean” project funded by the Federal Ministry of Education and Research dealt with the catalytic disintegration of air pollutants under sunlight exposure using building material surfaces that were functionally upgraded with nanoscale particles. This project aimed to not only derive fundamentally new findings but also to identify approaches to practical use, particularly to reduce the amount of nitrogen oxides (NOx) adhering to building material surfaces.

The research consortium included institutes at the German universities of Dresden, Hanover and Kassel, but also...

Related articles:

Issue 2018-02 Clean cities by means of photocatalysis

Less nitrogen oxides, more beautiful surfaces

Compliance with the limits set by the EU for nitrogen oxides is still posing a challenge for cities and municipalities. Contrary to measures such as driving bans, which have a negative impact on...

Issue 2015-04 Submitted by/Eingereicht von: Steag

Innovation: Photoment

Photoment is a concrete admixture with photocatalytic activity. It consists of a combination of flyash particles and different titanium dioxides (TiO2). On a photocatalytic surface, under the action...

Issue 2011-04 Photocatalytic activity of cement-bound systems

Comparison of two test methods

Up to this day, no uniformly standardized measurement and materials standards are available. Laboratory-scale measuring methods for quantifying the photocatalytic activity of surfaces are available....

Issue 2009-01 Innovative building materials

Reduction of air pollutants with TioCem®

In many German and European cities, air quality is an enormous problem. In addition to much-discussed fine particles, it is, above all, the oxides of nitrogen (NOX) and volatile organic compounds...

Issue 2013-09

Air purification using concrete products manufactured with special cement

Nitrogen oxides (NOX) are one of the most critical groups of air pollutants in the vicinity of major urban roads. One of the options to reduce the concentration of these pollutants in the air we...