Εξειδίκευση τύπου :	Άρθρο σε επιστημονικό περιοδικό
Τίτλος:	Functionalized MoS 2 supported core-shell Ag@Au nanoclusters for managing electronic processes in photocatalysis
Δημιουργός/Συγγραφέας:	Koklioti M.A. Saucedo-Orozco I. Quintana M. [EL] Ταγματάρχης, Νίκος[EN] Tagmatarchis, Nikos
Εκδότης:	Elsevier Ltd
Ημερομηνία:	2019
Γλώσσα:	Αγγλικά
ISSN:	0025-5408
DOI:	10.1016/j.materresbull.2019.02.021
Περίληψη:	Metal nanoclusters (M NCs ) based on gold as core and silver as shell, abbreviated as Ag@Au NCs , were electrostatically associated with functionalized semiconducting MoS 2 nanosheets, abbreviated as f-MoS 2 . The realization of the Ag@Au NCs /f-MoS 2 ensemble was manifested by UV–vis and photoluminescence titration assays, while its morphology was evidenced by high-angle annular dark-field STEM imaging coupled with EDX analyses. Photoinduced intra-ensemble charge-transfer phenomena were witnessed and attributed to the suppression and concomitant shift of Ag@Au NC photoluminescence by incremental additions of f-MoS 2 . The Ag@Au NCs /f-MoS 2 was employed as RhB photodegradation catalyst for wastewater purification from organic pollutant dyes. The production of highly oxidant radicals from the photogenerated electron-hole pairs within Ag@Au NCs /f-MoS 2 were found to be the main reactive species, while the holes left on Ag@Au NCs attacked RhB, as evidenced by the disappearance of the characteristic absorption peak. The photocatalytic reaction by the ensemble followed fast kinetics as compared with bare Ag@Au NCs or individual Au NCs and Ag NCs.
Τίτλος πηγής δημοσίευσης:	Materials Research Bulletin
Τόμος/Κεφάλαιο:	114
Σελίδες:	112-120
Θεματική Κατηγορία:	[EL] Φυσική και θεωρητική χημεία[EN] Physical and theoretical chemistry
Λέξεις-Κλειδιά:	Core-Shell nanoclusters Donor-acceptor Functionalization Photocatalysis Transition metal dichalcogenides
Αξιολόγηση από ομότιμους (peer reviewed):	Ναι
Κάτοχος πνευματικών δικαιωμάτων:	© 2019 Elsevier Ltd
Σημειώσεις:	General Secretariat for Research and Technology, GSRT; Siemens; Hellenic Foundation for Research and Innovation, ΕΛ.ΙΔ.Ε.Κ: 2015-2017
Εμφανίζεται στις συλλογές:	Ινστιτούτο Θεωρητικής και Φυσικής Χημείας (ΙΘΦΧ) - Επιστημονικό έργο