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 of sunlight and artificial light, a photocatalytic reaction of the TiO2 is triggered, causing the harmful nitrogen oxides (NO2) from the air to be converted into nitrate (NO3-). The reaction can be repeated as often as desired and is not used up. The photocatalytic reaction, in addition, forms a superhydrophile surface that stays clean longer and is self-cleaning.

The special mix of round flyash...

Related articles:

Issue 2015-01

Increasing efficiency in the degradation of airborne pollutants by photocatalytically modified concretes

1. Introduction EU legislation increasingly defines limits for airborne pollutants as our awareness of the environment is growing, which directly influences our health and well-being [1]. Vehicle...

Issue 2015-05 Steag Power Minerals

Pollutant Reduction Forum: sunny outlook

It couldn’t really get any better: potential demand for the product being offered certainly exists, political framework conditions are right, and the public will not need much convincing of the...

Issue 2010-04 Evironmentally Materials

Photocatalytic Concrete in Color

Products made of photocatalytic concrete are mainly achieved by cements that are doped with photocatalytic titanium dioxide, therefore only white and grey products are commonly available. There is...

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...

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...