In this thesis, I investigated the influence of platinum deposition on the photocatalytic properties of TiO₂ during the degradation of the azo dye Plasmocorinth B. I prepared several photocatalysts with varying amounts of deposited platinum and compared them with pure TiO₂ and commercial P-25. The efficiency of degradation was monitored using spectrophotometric measurements and total organic carbon (TOC) analysis. The results showed that platinum deposition improves photocatalytic activity, especially at higher concentrations. Additionally, oxygen bubbling further enhanced the degradation efficiency by increasing the formation of reactive oxygen species. The most effective degradation was achieved with TiO₂ containing the highest amount of platinum combined with oxygen supplementation.
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