Fast elimination of organic airborne compounds by adsorption and catalytic oxidation over aerosol TiO2

High concentration TiO2 aerosol was generated by a sonic method and applied for the first time to air purification from vapors of organic compounds. Reactive adsorption and photocatalytic oxidation over aerosolized TiO2 nanoparticles result in complete elimination of acetone and dimethyl methylphosphonate vapors over the timescale of few minutes, which demonstrates a good prospect of this novel method for practical air treatment. (C) 2008 Elsevier B.V. All rights reserved.