20.500.12556/DiRROS-21379 Effect of Ce:Ti ratio and cerium salts on the properties of mesoporous Ti-Ce oxides and their photocatalytic activity To investigate the influence of different CeO2 precursors and Ce:Ti ratios, we have synthesised 8 mesoporous Ti-Ce oxides via the evaporation-induced self-assembly (EISA) method with Ce:Ti ratios between 0.2 and 20 mol%.The materials exhibited type IV isotherms and a specific surface area of 140–180 m2⋅g 1 with pore diameters in range of 3–20 nm. The crystalline phases of materials comprised predominantly anatase with a significant decrease in overall crystalline content with increasing Ce:Ti ratio. Materials with higher Ce:Ti ratio showed an increased light absorption in the visible region. Although crystalline CeO2 was not detected, the presence of Ce(IV) was confirmed by X-ray photoelectron spectroscopy. For the photocatalytic experiments, we compared these materials with the TiO2-CeO2 composites of our previously published syntheses to yield 16 samples synthesized via three synthesis approaches: (1) concurrent synthesis from titanium alkoxide and cerium salts in one pot, (2) synthesis of TiO2 in the presence of previously-synthesised CeO2 and (3) physical mixing of separately-synthesised TiO2 and CeO2. Samples produced by physically mixing the separately-synthesised TiO2 and CeO2 showed the best photocatalytic activity towards gaseous isopropanol degradation, while the samples with TiO2 synthesised in the presence of CeO2 showed the best photocatalytic stability. Ti-Ce oxides evaporation-induced self-assembly isopropanol oxidation photocatalysis mesoporous material Ti-Ce oksidi samourejanje z odparevanjem topila oksidacija izopropanola mezoporozni material true false true Elsevier Science Angleški jezik Slovenski jezik © 2025 The Authors. Published by Elsevier B.V. Neznano 2025-01-30 07:37:58 2025-01-30 08:20:44 2025-01-31 03:37:12 0000-00-00 00:00:00 2025 0 0 str. 1-15 [article no.] 115204 Vol. 449 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2025-01-16 54 1873-4308 10.1016/j.cattod.2025.115204 223125507 https://www.sciencedirect.com/science/article/pii/S0920586125000227 1 bf7c5c42-ded4-11ef-ba3f-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=30447 RAZ_Nadrah_Peter_2025.pdf RAZ_Nadrah_Peter_2025.pdf 1 7F3E9F07469AB28F6B9934F292DCDEA4 082611ac0bd957b9b6c92340ca9211f421522f907e1c7f2fc1dbf6e3d848e348 8898fbfa-deda-11ef-ba3f-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=30448 RAZ_Nadrah_Peter_2025.pdf RAZ_Nadrah_Peter_2025.pdf 1 98C009F1D16034FE3F8EAA206E6F019D 805658f1c599b1228c6fce39dfd1a1109fe6b6950b09596f78f2b5d325c57dfc 92272584-deda-11ef-ba3f-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=30449 Zavod za gradbeništvo Slovenije 0 0 0