Performance of ultraviolet photocatalytic for indoor air cleaning applications

A report of an experimental evaluation of an ultraviolet photocatalytic oxidation (UVPCO) device with tungsten oxide modified titanium dioxide (TiO2) as the photocatalyst, is presented in this paper. Conversion efficiencies and clean air delivery rates have been measured for individual VOC components of several indoor relevant mixtures established at realistically low concentration levels. The formation of gas-phase products of incomplete conversion has been then investigated.