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Spherical Co-doped SiO2/Cu-grafted TiO2 hybrid particles were prepared using organic spherical monolith particles as a template. Rutile was crystallized in the monolith particles impregnated with a TiO2 precursor solution by hydrothermal treatment in a strong acid condition (2M HCl). Subsequent UV illumination assisted efficient decomposition of organic compounds in the particles during firing. The...
A rutile powder was modified with either Cu or Au, or both. Then, visible-light photocatalytic activity of the obtained powders was evaluated by the decomposition of gaseous 2-propanol (IPA) to acetone. The modified powders possessed almost identical Cu and Au concentrations, and the difference of specific surface area among the powders was within 10%. The order of acetone generation by photocatalytic...
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