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Au/Ti synergistically modified supports based on SiO.sub.2./sub. with different pore geometries and architectures
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SYSNO ASEP 0562808 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Au/Ti synergistically modified supports based on SiO2 with different pore geometries and architectures Author(s) Petcu, G. (RO)
Anghel, E.M. (RO)
Buixaderas, Elena (FZU-D) RID, ORCID
Atkinson, I. (RO)
Somacescu, S. (RO)
Baran, A. (RO)
Culita, D.C. (RO)
Trica, B. (RO)
Bradu, C. (RO)
Ciobanu, M. (RO)
Parvulescu, V. (RO)Number of authors 11 Article number 1129 Source Title Catalysts. - : MDPI
Roč. 12, č. 10 (2022)Number of pages 19 s. Language eng - English Country CH - Switzerland Keywords hierarchical zeolite Y ; 3D mesoporous silica ; Au/Ti-supported catalysts ; surface plasmon resonance effect ; photocatalytic degradation Subject RIV BL - Plasma and Gas Discharge Physics OECD category Condensed matter physics (including formerly solid state physics, supercond.) Method of publishing Open access Institutional support FZU-D - RVO:68378271 UT WOS 000874326000001 EID SCOPUS 85140852329 DOI 10.3390/catal12101129 Annotation New photocatalysts were obtained by immobilization of titanium and gold species on zeolite Y, hierarchical zeolite Y, MCM-48 and KIT-6 supports with microporous, hierarchical and mesoporous cubic structure. The obtained samples were characterized by X-ray diffraction (XRD), N2-physisorption, scanning and transmission electron microscopy (SEM/TEM), diffuse reflectance UV–Vis spectroscopy (DRUV-Vis), X-ray photoelectron spectroscopy (XPS), Raman and photoluminescence spectroscopy. The photocatalytic properties were evaluated in degradation of amoxicillin (AMX) from water, under UV (254 nm) and visible light (532 nm) irradiation. The higher degradation efficiency and best apparent rate constant were obtained under UV irradiation for Au-TiO2-KIT-6, while in the visible condition for the Au-TiO2-MCM-48 sample containing anatase, rutile and the greatest percent of Au metallic clusters were found (evidenced by XPS). Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2023 Electronic address https://hdl.handle.net/11104/0335001
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