UV-PCO device for indoor VOCs removal: Investigation on multiple compounds effect

Adsorption and degradation of model volatile organic compounds by a combined titania–montmorillonite–silica photocatalyst

“…5b), it is noted that the photocatalytic oxidation efficiencies for single and binary system are very close, although the former is slightly higher than the latter. Similar conclusion was also obtained for the photocatalytic degradation of the mixtures of toluene and ethyl benzene, suggesting that this was due to the small interference effect among tested VOCs within the selected concentration range [39]. This interference effect was also found in the photocatalytic oxidation of mixed toluene and benzene [40] and during the combustion oxidation of benzene-EA mixtures [41].…”

Ordered TiO2 nanotubes: The effect of preparation parameters on the photocatalytic activity in air purification process

“…Among to the others methods, heterogeneous photocatalysis has been proposed to remove both organic and inorganic compounds together with microorganisms from outdoor and indoor air. TiO 2 materials were used to degrade compounds such as: trichloroethylene, methanol, benzene [1], toluene [2,3], acetone, ethanol [3], acetaldehyde [4], carbon monoxide, nitric oxides [5], mixture of different VOCs [6] and also a pathogenic microorganisms, like Legionella pneumophila bacteria [7]. Different geometry and construction of the reactors were used to perform photocatalytic air purification process [8,9].…”

Characteristics of Photocatalytic Oxidation of Toluene, Benzene, and Their Mixture

“…The PCO kinetics of TCE and toluene mixtures in air are, thus, shown to exhibit strong promotion and inhibition behavior in contrast to that expected from the single-species kinetic degradation data. Chen et al 25 tested the removal efficiency of a UV-PCO reactor for single and multiple VOCs on selected groups of compounds, such as toluene, ethylbenzene, octane, decane, and dodecane, in a full-scale chamber under low VOC concentration levels. It was found that the interference effect among test VOCs were generally small in the 2-VOC and 3-VOC mixture tests.…”