Abstract
A gas-flow photoreactor working with a UV-A lamp or under direct sunshine to test materials of large size.
Highlights
Nowadays, it is imperative to develop new strategies and, side by side, new materials to clean the environment
Nitrogen oxides (NOx) are continuously monitored all over the world and guidelines on the alarm levels of these molecules in air were published by WHO1 and often recalled in the legislations of single countries worldwide
The main problem related to all these reactors is that the conditions are often far from reality: several parameters were already fixed and they are very good for the laboratory photocatalytic tests concerning the nitrogen oxides (NOx) analysis, there is no way to verify the real performance of a photocatalytic material in a true realistic context
Summary
It is imperative to develop new strategies and, side by side, new materials to clean the environment. Nitrogen oxides (NOx) are continuously monitored all over the world and guidelines on the alarm levels of these molecules in air were published by WHO1 and often recalled in the legislations of single countries worldwide. Photocatalysis with titanium dioxide as a semiconductor[2,3] seems to be a promising technique to reduce the pollutant concentration due to its powerful oxidation properties. The main problem related to all these reactors is that the conditions are often far from reality: several parameters were already fixed and they are very good for the laboratory photocatalytic tests concerning the NOx analysis, there is no way to verify the real performance of a photocatalytic material in a true realistic context
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