Passive air quality improvement by photocatalysis

Photocatalysis for industry

Passive VOC and NOx degradation

Photocatalysis is a chemical reaction that removes pollutants commonly found in the atmosphere, such as VOCs, NOx and SOx through an oxidation process activated by solar energy.

The most commonly used photocatalyst is titanium dioxide(TiO2).

Photocatalysis

Decomposition of contaminants

Product test

Litoclean has subjected the product to exhaustive tests developed and controlled at the Fraunhofer Institute in Germany, which have yielded promising and decisive results that endorse the veracity of the action of the photocatalysis process offered by the product.

Pilot tests to evaluate the performance of the photocatalytic technique

Application of a constant flow of air with Toluene and another with Formaldehyde in a closed receptacle, primed with TiO2 nanoparticles and ultraviolet light.

Pilot test with toluene

Toluene concentration vs. time curve.

67.4% VOC removal by photocatalysis

No accumulation of toluene degradation products (formaldehyde, acetaldehyde, formic acid, acetic acid, acrolein, ethanol and other semi-volatile VOCs ) is observed, so their total elimination is affirmed.

The complete degradation of toluene would be confirmed.

1,000 ppb Toluene +Photocatalytic paint + UV = ~ 3 ppm CO2

Formaldehyde pilot test

Formaldehyde concentration vs. time curve.

fotocatalisis_04_eng

57.3% VOC removal by photocatalysis

No accumulation of the degradation products of formaldehyde (acetaldehyde, formic acid and acetic acid) is observed, so their total elimination is affirmed.

Formaldehyde + Catalyst product + UV = ~ CO2 + Water

Removal of VOCs present in the atmosphere by
photocatalysis.

Solutions for:

How do we help the industry?

Application

Water-based paint

Titanium dioxide
in nanoparticles

Nebulization
of the product

Any surface

Generates environmental improvement

In the presence of sunlight
or UV rays.

Litoclean has experience in the field of R&D&I. We apply photocatalysis to reduce pollutant concentrations and improve air quality.