Multivariate comparison of photocatalytic properties of thirteen nanostructured metal oxides for water purification.

J Environ Sci Health A Tox Hazard Subst Environ Eng

a Department of Medicinal Chemistry, Faculty of Pharmacy , Medical University of Lublin, Lublin , Poland.

Published: September 2019

Although the environmental photocatalysis is being developed for many years, the relationships between simple metal oxides have not been explored so far. In this study a multivariate comparison of thirteen nanostructured metal oxides (BiO, CeO, CoO, FeO, NiO, PrO, SnO, SrTiO, TiO, WO, ZnFeO, ZnO and ZrO) was performed. The solution containing twenty-six psychotropic pharmaceuticals was used as a model mixture. In order to ensure the influence of the dissolved organic matter on the process, all the experiments were conducted in the river water. Simulated solar radiation was applied as the most environmentally relevant. The high-resolution LC-MS profiles, obtained for the photocatalytic samples after 1 h of irradiation, were then submitted to the multivariate chemometric analysis. Graphical representations of principal component analysis and hierarchical cluster analysis enabled visualization of the relationships between the studied oxides. The registered degradation profiles were compared qualitatively and discussed.

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http://dx.doi.org/10.1080/10934529.2019.1598169DOI Listing

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