Εξειδίκευση τύπου :	Άρθρο σε επιστημονικό περιοδικό
Τίτλος:	Photocatalytic Properties of Titanium Dioxide Thin Films Doped with Noble Metals (Ag, Au, Pd, and Pt)
Δημιουργός/Συγγραφέας:	Moslah C. [EL] Κάνδυλα, Μαρία[EN] Kandyla, Maria [EL] Μούσδης, Γεώργιος Α.[EN] Mousdis, George A. Petropoulou G. Ksibi M.
Εκδότης:	Wiley-VCH Verlag
Ημερομηνία:	2018
Γλώσσα:	Αγγλικά
ISSN:	1862-6300
DOI:	10.1002/pssa.201800023
Περίληψη:	Sol-gel grown TiO2 thin films are deposited on glass substrates by spin-coating, using noble metals (M = Ag, Au, Pd, and Pt) for doping. The films are thermally treated at 500 °C, to obtain the anatase phase. The film properties are characterized by field-emission scanning electron microscopy (FE-SEM), energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), Raman spectroscopy, profilometry, and UV/VIS/NIR spectroscopy. FE-SEM images and EDX measurements show the presence of dopant elements in the metallic form. XRD and Raman measurements show the presence of the anatase phase for pure and doped samples. Optical measurements show the optical band gap decreases for Au and Pt doping, while it shows little change for Ag and Pd doping, compared to pure TiO2. The photocatalytic activity of all films is evaluated by measuring the rate of decolorization of methylene blue (MB) under UV irradiation. The normalization of the rate of degradation of MB according to the film thickness shows significant photocatalytic activity of all films with the following order Pt-TiO2 > Pd-TiO2 > Au-TiO2 > Ag-TiO2 > pure TiO2.
Τίτλος πηγής δημοσίευσης:	Physica Status Solidi (A) Applications and Materials Science
Τόμος/Κεφάλαιο:	215
Τεύχος:	17
Θεματική Κατηγορία:	[EL] Φυσική και θεωρητική χημεία[EN] Physical and theoretical chemistry [EL] Φασματοσκοπία[EN] Spectroscopy
Λέξεις-Κλειδιά:	methylene blue noble metal doping photocatalysis sol-gel/spin-coating thin films TiO2
Αξιολόγηση από ομότιμους (peer reviewed):	Ναι
Κάτοχος πνευματικών δικαιωμάτων:	© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Σημειώσεις:	Ministère de l’Enseignement Supérieur et de la Recherche Scientifique, MESRS; Εθνικό 'Ίδρυμα Ερευνών, EIE: MIS 5002409; Ministry of Higher Education and Scientific Research, MHESR; European Commission, EC; European Regional Development Fund, ERDF The research was financially supported by the Tunisian Ministry of Higher Education and Scientific Research and the National Hellenic Research Foundation (NHRF), through a Bilateral Scientific Cooperation. We acknowledge support of this work by the project ?Advanced Materials and Devices? (MIS 5002409) which is implemented under the ?Action for the Strategic Development on the Research and Technological Sector,? funded by the Operational Programme ?Competitiveness, Entrepreneurship and Innovation? (NSRF 2014?2020) and co-financed by Greece and the European Union (European Regional Development Fund).
Εμφανίζεται στις συλλογές:	Ινστιτούτο Θεωρητικής και Φυσικής Χημείας (ΙΘΦΧ) - Επιστημονικό έργο