PHOTOCATALYTIC DEGRADATION OF MIXTURE OF PHARMACEUTICALS BY OXIDE ZnO/TiO2 NANOPOWDER
DOI:
https://doi.org/10.24867/01HZ01BubuljKeywords:
photocatalytics, pharmaceuticals, naproxen, diclofenac, ketoprofen, ibuprofen, ZnO/Ti02 nanopowderAbstract
In this paper, the efficiency of photocatalytic degradation of mixture of pharmaceuticals (naproxen, diclofenac, ketoprofen and ibuprofen) in the aqueous medium using photocatalysts based on nanoparticle powder which is activated by UV radiation, has been examined. The results indicates the justification of the combination of zinc oxide with titanium (IV) oxide in order to increase the efficiency of the photocatalytic decomposition process. It has been shown that the degradation of diclofenac, ketoprofen and ibuprofen takes place efficiently regardless of the mass of the catalyst, the initial concentration of the pharmaceuticals, and the pH conditions. Naproxen has proven to be the most resistant pharmaceutical and degradation constants are calculated for naproxen only, which may be used as guidelines in further research.
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