(Limitation of space allows only a selection of papers to be mentioned). Preface. INVITED PAPERS: TiO2 Photocatalysis: Fundamentals. Conditions for an efficient photocatalytic activity of TiO2 particles (H. Gerischer). Fundamental photoelectrochemistry of TiO2 and SrTiO3 applied to environmental problems (J.M. Kesselman, A. Kumar, N.S. Lewis). Size quantization effects in photocatalysis (A.J. Nozik). Initial rates of TiO2-photocatalyzed degradations of water pollutants: Influences of adsorption, pH and photon-flux (J. Cunningham, P. Sedlak). TiO2 mediated photocatalysis using visible light: Photosensitization approach (P.V. Kamat, K. Vinodgopal). Photocatalyzed Water Treatment. Photocatalysis in water purification: Possibilities, problems and prospects (R.W. Matthews). Photoassisted oxidation of oil and organic spills on water (A. Heller et al.). The role of hydroxyl radicals in the photocatalyzed detoxification of organic pollutants: Pulse radiolysis and time-resolved diffuse reflectance measurements (M.A. Fox). The TiO2-mediated photocatalytic degradation of chloroalkenes in water (J.F. Kenneke, J.L. Ferry, W.H. Glaze). TiO2 photocatalytic destruction of water aromatic pollutants: Intermediates; properties-degradability correlation; effects of inorganic ions and TiO2 surface area; comparisons with H2O2 processes (P. Pichat et al.). Identifying primary events and the nature of intermediates formed during the photocatalyzed oxidation of organics mediated by irradiated semiconductors (N. Serpone, E.Pelizzetti, H. Hidaka). Biological treatment of Kraft wastewater following pretreatment of the extraction waste stream by illuminating titanium dioxide and membranes (R.A. Sierka, C.W. Bryant). Photocatalytic detoxification: Novel catalysts, mechanisms and solar applications (D.W. Bahnemann et al.). TiO2 photocatalysis for the destruction of organics and the reduction of heavy metals (M.R. Prairie, B.M. Stange, L.R. Evans). Photocatalyzed Air Treatment. Removal of low concentration air pollutants through photoassisted heterogeneous catalysis (T. Ibusuki et al.). Titanium dioxide mediated photochemical destruction of trichloroethylene vapours in air (W. Holden et al.). Flow reactor studies of TiO2 photocatalytic treatment of airborne nitroglycerin (A. T-Raissi, N.Z. Muradov). Mechanistic studies in TiO2 systems: Photocatalytic degradation of chloro- and nitrophenols (K.A. Gray et al.). Photoreactor Design. Photoreactors for purification and decontamination of air (D.F. Ollis). TiO2 photocatalytic treatment of water. Reactor design and optimization experiments (L. Jakob et al.). Operation of a solar photocatalytic water treatment system at a superfund site (J.E. Pacheco et al.). TiO2 Photo-oxidation Processes: Economics and Roles. Microbiological issues related to drinking water disinfection chemistry: Opportunities for further TiO2 research (J.C. Ireland). Treatment of organic contaminants in air by photocatalytic oxidation: A commercialization perspective (R. Miller, R. Fox). CONTRIBUTED PAPERS: Liquid Phase. Treatment of industrial wastewaters by photocatalytic oxidation on TiO2 (L. Tinucci et al.). Photocatalytic oxidation of multi-component organochlorine mixtures in water (T.P.M. Koster et al.). Kinetic and radiation studies for the photoreactor design in photocatalytic detoxification processes using TiO2 (S. Cervera-March et al.). Dependence of photocatalytic reaction rate on photocatalyst concentration in aqueous suspensions (H. Kawaguchi). Gas Phase. Photocatalytic abatement of nitrogen oxides (P.H. Jordan, P.L. Yue). Control of VOC emissions from air-stripping towers: Development of gas-phase photocatalytic process (K-M. Wang, B.J. Marinas). Photocatalytic activity of TiO2 thin film under room light (T. Watanabe et al.). Catalysts and Reactors. Solar detoxification of polluted water: Comparing the efficiencies of a parabolic trough reactor and a novel thin-film-fixed-bed reactor (D. Bockelmann et al.). Photocatalysis of organic effluents in a falling film reactor (H.C. Yatmaz, C.R. Howarth, C. Wallis). Photoacoustic study of light-induced charge separation in TiO2 particles (Y. Takaoka, I. Aketa, S. Murasawa).
