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Composite TiO2/SiO2 porous thin films prepared using the sol–gel process were doped with dispersion of bipyramid-like gold nanoparticles (AuBP). The impact of the presence of the nanoparticles on the photocatalytic activity during degradation of formic acid in aqueous media was fully investigated and an improvement of the efficiency was observed. The films compositions and structures were characterized...
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