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Photocatalytic Oxidation of Indoor Air Volatile Organic Compounds (VOCs) in pub Level  

Jo, Wan-Kuen (Department of Environmental Engineering, Kyungpook National University)
Kim, Dong-Hyun (Department of Chemical Engineering, Kyungpook National University)
Ki, Jae-Chang (Department of Chemical Engineering, Kyungpook National University)
Huh, Jeung-Soo (Department of Material Sciences and Metallurgy, Kyungpook Notional University)
Publication Information
Journal of Korean Society for Atmospheric Environment / v.19, no.E4, 2003 , pp. 157-168 More about this Journal
Abstract
This study evaluated the technical feasibility of the application of titanium oxide (TiO$_2$) photocatalysis for the removal of VOCs in low ppb concentrations commonly associated with non -occupational indoor air quality issues. A series of experiments were conducted to evaluate four parameters (relative humidity (RH), hydraulic diameter (HD), photocatalytic oxidation (PCO) reactor material (RM), and inlet port size (IPS) of PCO reactor) for the PCO destruction efficiencies of the selected target VOCs. None of the target VOCs presented significant dependency on the RH, which is inconsistent with a few previous studies. However, it is noted that the three parameters (HD, RM and IPS) should be considered for better VOCs removal efficiencies for the application of TiO$_2$ photocatalytic technology for cleansing non -occupational indoor air. The PCO destruction of VOCs at concentrations associated with non-occupational indoor air quality issues can be up to nearly 100％. The amount of CO generated during PCO would be negligible in comparison to the indoor CO levels. These results can make the PCO reactor an important tool in the effort to improve non-occupational indoor air quality.
Keywords
Indoor air; Parameter; Photocatalytic oxidation; Titanium oxide; VOCs;
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