Nano-Scale Metal Oxide Particles as Materials for Air Purification

摘要

A final report on the study of ultrafine metal oxide particles as destructiveadsorbents for toxic substances is presented. Successful treatment of organophosphorous compounds and chlorocarbons, where heteroatoms are extracted forming nontoxic metal phosphates and chlorides, has been carried out. Methods for preparing the nanoscale particles, including core/shell overlayer particles, have been worked out. Surface characterization, surface chemistry, heats of adsorption, surface catalyzed CH/D2 yields CD/H exchange, effect of surface --OH groups, electron transfer processes, (16)O/(18)O exchange, and studies of molecular metal oxides have been reported. A patentable invention dealing with Fe(2)O(3)/MgO core/shel structures is also described. Overall, 11 graduate students, research associates, and visiting professors have been involved in this work. Ultrafine, High surface Metal oxides, Nanoscale, Particles, Destructive adsorption, Organophosphorus, Chlorocarbons, Core/shell, Toxic surface.