20.500.12556/DiRROS-21817 Variations of electronic properties on the behavior of visible light-triggered TiO[sub]2 +Au photocatalysts Au catalysts (1 wt% Au) using anatase TiO2 nanorods (TNR, SBET =106 m2/g) or nanospheres (TNP, SBET =86 m2/g). The majority of Au particles in the prepared TiO2 +Au catalysts were in the range of 20–30 nm, with slight differences observed between the TNR +Au and TNP +Au samples. It is noteworthy that the addition of Au did not significantly change the specific surface area and crystallinity of the TiO2 supports. Evaluation of photocatalytic activity using ABTS•+ cation oxidation, DMPO/DMSO spin trapping and bisphenol A (BPA) degradation under visible-light illumination showed different behaviour of TNR +Au and TNP +Au catalysts. The TNR +Au catalyst produced mainly e-, while the TNP +Au catalyst exhibited efficient O2 •- production, which was confirmed by electron paramagnetic resonance spin trapping analyses. Conversely, due to its high Schottky barrier height (SBH) and the properties of the Au nanoparticles, the TNR +Au catalyst could not facilitate an oxygen reduction reaction but effectively produced e- as it reduced ABTS•+. The results show that the degra dation of BPA in the presence of the TNR +Au photocatalyst occurs through the involvement of e- and a small amount of hydroxyl radicals (OH•). Comprehensive characterization techniques provided insights into the intricate relationships between catalyst structure, composition and catalytic activity. titanijev dioksid zlati nanodelci fotokataliza true false true Applied Surface Science Angleški jezik Slovenski jezik © 2025 The Author(s). Published by Elsevier B.V. Neznano 2025-04-03 12:43:59 2025-04-03 12:51:48 2025-10-24 03:49:54 0000-00-00 00:00:00 2025 0 0 str. 1-15 [article no.] ǂ162923 Vol. 695 30 Jun. 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2025-06-30 546 0169-4332 10.1016/j.apsusc.2025.162923 228881667 https://www.sciencedirect.com/science/article/pii/S0169433225006373?via%3Dihub 0 3e75313e-1079-11f0-963a-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=31451 RAZ_Slapnicar_Spela_2025.pdf RAZ_Slapnicar_Spela_2025.pdf 1 2E852CE32A329E463C38A73F77B2D807 6e1967467a0d4b40613e1488569ab8146a1035403f91d71fef5a21a61e7ad724 322ded55-1079-11f0-963a-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=31450 Kemijski inštitut 0 0 0