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Naslov:Synthesis and characterization of plasmonic Au/TiO2 nanorod solids for heterogeneous photocatalysis
Avtorji:ID Slapničar, Špela (Avtor)
ID Žerjav, Gregor (Avtor)
ID Zavašnik, Janez (Avtor)
ID Finšgar, Matjaž (Avtor)
ID Pintar, Albin (Avtor)
Datoteke:URL URL - Izvorni URL, za dostop obiščite https://www.sciencedirect.com/science/article/pii/S2213343723005742?via%3Dihub
 
.pdf PDF - Predstavitvena datoteka, prenos (4,16 MB)
MD5: 4D8ED7857E9447E434451F493FDDF6AB
 
Jezik:Angleški jezik
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:Logo KI - Kemijski inštitut
Povzetek:Plasmonic Au (1 wt%) catalysts deposited on hydrothermally synthesized TiO2 nanorods (TNR) were investigated in this study. Based on the duration of mixing of the Au precursor/TNR suspension during the wet impregnation synthesis and parameters of the end calcination, Au/TiO2 catalysts with different sizes of Au nanoparticles (Au NPs) were obtained. The prepared solids were thoroughly characterized by several instrumental techniques to investigate property-activity relationships. Regardless of the size of Au particles on the catalyst surface, an absorption peak at 550 nm occurred in all UV-Vis diffuse reflectance spectra of the investigated Au/TiO2 catalysts, which is characteristic of the localized surface plasmon resonance effect exerted by metallic Au NPs. By measuring the formation of reactive oxygen species under visible-light illumination using various scavengers, the production of superoxide anion radicals (O2•single bond) and hydroxyl radicals were identified, however, the former were found to represent the main reactive oxygen species that govern the oxidation of aqueous bisphenol A (BPA) employed as a model organic pollutant. The activity of Au/TiO2 catalysts for the generation of O2•single bond radicals (and BPA oxidation) increases by increasing the Schottky barrier height, which is due to the slow reduction of water-dissolved O2 on the catalyst surface.
Ključne besede:heterogeneous photocatalysis, titanate nanorods, gold nanoparticles, wet impregnation, localized surface plasmon resonance effect
Status publikacije:Objavljeno
Verzija publikacije:Objavljena publikacija
Datum objave:01.06.2023
Založnik:Elsevier B.V.
Leto izida:2023
Št. strani:str. 1-11
Številčenje:Vol. 11, iss. 3, [article no.] 109835
Izvor:Journal of environmental chemical engineering
PID:20.500.12556/DiRROS-16467 Novo okno
UDK:620.3
ISSN pri članku:2213-3437
DOI:10.1016/j.jece.2023.109835 Novo okno
COBISS.SI-ID:147848195 Novo okno
Avtorske pravice:© 2023 The Author(s). Published by Elsevier Ltd.
Opomba:Nasl. z nasl. zaslona; Soavtorji: Gregor Žerjav, Janez Zavašnik, Matjaž Finšgar, Albin Pintar; Opis vira z dne 5. 4. 2023;
Datum objave v DiRROS:26.04.2023
Število ogledov:1411
Število prenosov:571
Metapodatki:XML DC-XML DC-RDF
:
SLAPNIČAR, Špela, ŽERJAV, Gregor, ZAVAŠNIK, Janez, FINŠGAR, Matjaž in PINTAR, Albin, 2023, Synthesis and characterization of plasmonic Au/TiO2 nanorod solids for heterogeneous photocatalysis. Journal of environmental chemical engineering [na spletu]. 2023. Vol. 11, no. 3,  109835, p. 1–11. [Dostopano 12 april 2025]. DOI 10.1016/j.jece.2023.109835. Pridobljeno s: https://dirros.openscience.si/IzpisGradiva.php?lang=slv&id=16467
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Gradivo je del revije

Naslov:Journal of environmental chemical engineering
Založnik:Elsevier B.V.
ISSN:2213-3437
COBISS.SI-ID:519695385 Novo okno

Gradivo je financirano iz projekta

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Program financ.:Javna agencija Republike Slovenije za raziskovalno dejavnost
Številka projekta:P2-0150
Naslov:Integralni pristop k preprečevanju onesnaževanja voda
Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Program financ.:Javna agencija Republike Slovenije za raziskovalno dejavnost
Številka projekta:P2-0118
Naslov:Tekstilna kemija in napredni tekstilni materiali

Licence

Licenca:CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
Začetek licenciranja:31.03.2023
Vezano na:Text and Data Mining valid from 2023-06-01 Version of Record valid from 2023-03-31

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:heterogena fotokataliza, titanatove nanopalčke, zlati nanodelci, impregnacija


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