20.500.12556/RUL-153018 Multicomponent Cu-Mn-Fe silica supported catalysts to stimulate photo-Fenton-like water treatment under sunlight Removal of contaminants of emerging concern (CEC) from water is a serious problem. Using sunlight to assist in this process is one of the most sustainable methods for water treatment. In this study, we demonstrate that tailoring the morphology and optimizing the metal concentration in the multicomponent catalysts through an appropriate synthetic strategy leads to Fenton-like and photo-Fenton-like systems capable of effectively degrading bisphenol A and coumarin as model endocrine disruptors and coumarin as a probe for $^•$OH detection. Multicomponent Cu-Mn-Fe silica supported catalysts were prepared via direct synthesis by incorporating magnetic Fe$_3$O$_4$ nanoparticles, Mn and Cu during the formation of silica nanoparticles with interparticle mesoporosity. Comprehensive characterization by advanced microscopic and spectroscopic techniques revealed qualitatively and quantitatively the presence of magnetic Fe oxides covered with the silica support, isolated Mn cations/oxo species into silica framework and CuO particles attached to the silica framework. The Fenton-like activities of the catalysts are due to the catalytic disproportionation of H$_2$O$_2$ by Cu$^{2+}$ species and isolated Mn species in the silica support. The investigated catalysts are efficient concerning the homolytic cleavage of H$_2$O$_2$ to hydroxyl radicals, with a further positive effect of hydroxyl radical formation observed under visible-light illumination thus acting as photo-Fenton-like catalysts. Fe oxides with magnetic properties are used for easy separation of the catalyst/photocatalyst after the reaction and do not contribute to the catalytic/photocatalytic performance. magnetic catalyst photocatalyst water treatment sunlight contaminants of emerging concern photo-Fenton-like systems kemijsko inženirstvo varstvo okolja fotokataliza čiščenje vode sončna svetloba true false true Angleški jezik Slovenski jezik Članek v reviji 2023-12-14 13:30:52 2023-12-14 13:30:53 2024-10-01 15:24:41 0000-00-00 00:00:00 2023 0 0 11 str. iss. 5, art. 110369 Vol. 11 Oct. 2023 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 66 2213-3437 10.1016/j.jece.2023.110369 157430787 1-s2.0-S2213343723011089-main.pdf 1-s2.0-S2213343723011089-main.pdf 1 E484120A3498041E48FD6CFDE8919158 bc6b7626dfbf9f889936bd8e9d7bf9eee1c61dc4344398100eed1c1267b26903 0b1fd468-9a7d-11ee-91f8-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=178802 https://www.sciencedirect.com/science/article/pii/S2213343723011089 1 a01cdd84-9a7c-11ee-91f8-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=178801 Fakulteta za kemijo in kemijsko tehnologijo Fakulteta za gradbeništvo in geodezijo 0 0 0