Enhancement Effect of TiO sub(2) Immobilized on Activated Carbon Filter for the Photodegradatoin of Pollutants at Typical Indoor Air Level

Previous studies have investigated the competition effect between water vapor and pollutants at the ppb level for adsorption sites. Findings showed that for high humidity conditions, rates of pollutant photodegradation were reduced significantly. As part of efforts aimed at enhancing the photodegradatoin of pollutants at the ppb level under conditions of high humidity, samples of titanium dioxide were immobilized on an activated carbon filter. Tests were then implemented using 200 ppb of nitrogen oxide and 20 ppb of benzene, toluene, ethylbenzene, and o-xylene as target contaminants. Data are reported from sensitivity analyses carried out for NO and BTEX under different residence times and humidity levels. The benefits provided by the combination of TiO sub(2) and activated carbon are highlighted.