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Au/TiO2 nanocomposites are prepared by the solventless solid grinding method, which consists in mechanically mixing AuPPh3Cl and titania P25 and applying a mild heat treatment to reduce Au (I) into Au (0) nanoparticles (Au NP). Given that gold oxides are not thermally stable, both air and hydrogen can be considered for such treatment. Air however leads to much more efficient photocatalysts than hydrogen,...
Photocatalytic removal of toluene in the gas phase was carried out over UV-illuminated sulfated titania materials in a cylinder-like continuous reactor. A series of SO42−–TiO 2 samples was obtained from the addition of H 2 SO 4 on an amorphous titanium hydroxide gel synthesized according to a classical sol–gel procedure. The wide variety of materials led to varying photocatalytic...
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