Nano-Greenhouse Photo-catalyst uses light energy when it reacts, in the same manner that photosynthesis use chlorophyll to produce O for cleaning forest. e- and h+ made when light hits photo-catalyst. TiO2 produce two kinds of active oxygen such as O2- and OH on the surface of TiO2 by reacting with O2 and H2O in the air. Particularly because OH has high oxidization and reduction potentials, it has excellent effects in decomposition of NOx, SOx, and VOCs, deodorization.
Photo catalyst coating also oxidizes every object material by sterilizing more than 99% of bacteria and germs such as pathogenic coli-form bacillus, staphylococcus ATCC 6538P, and O-157. When light is irradiated, high hydrophilic-OH is produced. Since one of two kinds of oxygen that constitute TiO2 reacts with h20 in the air, the surface of Ti02 has an excellent ability to prevent pollution, and to eliminate pollutants on it. Ti02 photo-catalyst is very economical in that it reacts with fluorescent light as well as with sunlight, so that it functions almost permanently with our natural daily/nightly 24 hour cycle.

from:nanogreenhouse.com