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Naslov:Variations of electronic properties on the behavior of visible light-triggered TiO[sub]2 +Au photocatalysts
Avtorji:ID Slapničar, Špela (Avtor)
ID Žerjav, Gregor (Avtor)
ID Roškarič, Matevž (Avtor)
ID Zavašnik, Janez (Avtor)
ID Pintar, Albin (Avtor)
Datoteke:URL URL - Izvorni URL, za dostop obiščite https://www.sciencedirect.com/science/article/pii/S0169433225006373?via%3Dihub
 
.pdf PDF - Predstavitvena datoteka, prenos (2,79 MB)
MD5: 2E852CE32A329E463C38A73F77B2D807
 
Jezik:Angleški jezik
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:Logo KI - Kemijski inštitut
Povzetek: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.
Status publikacije:Objavljeno
Verzija publikacije:Objavljena publikacija
Datum objave:30.06.2025
Leto izida:2025
Št. strani:str. 1-15
Številčenje:Vol. 695, [article no.] ǂ162923
Izvor:Applied Surface Science
PID:20.500.12556/DiRROS-21817 Novo okno
UDK:546
ISSN pri članku:0169-4332
DOI:10.1016/j.apsusc.2025.162923 Novo okno
COBISS.SI-ID:228881667 Novo okno
Avtorske pravice:© 2025 The Author(s). Published by Elsevier B.V.
Datum objave v DiRROS:03.04.2025
Število ogledov:135
Število prenosov:46
Metapodatki:XML DC-XML DC-RDF
:
SLAPNIČAR, Špela, ŽERJAV, Gregor, ROŠKARIČ, Matevž, ZAVAŠNIK, Janez in PINTAR, Albin, 2025, Variations of electronic properties on the behavior of visible light-triggered TiO[sub]2 +Au photocatalysts. Applied Surface Science [na spletu]. 2025. Vol. 695, no. 162923, p. 1–15. [Dostopano 6 april 2025]. DOI 10.1016/j.apsusc.2025.162923. Pridobljeno s: https://dirros.openscience.si/IzpisGradiva.php?lang=slv&id=21817
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Gradivo je del revije

Naslov:Applied Surface Science
Skrajšan naslov:Appl. surf. sci.
Založnik:North-Holland
ISSN:0169-4332
COBISS.SI-ID:3283215 Novo okno

Gradivo je financirano iz projekta

Financer:ARIS - Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije
Številka projekta:P2-0150
Naslov:Integralni pristop k preprečevanju onesnaževanja voda

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:08.03.2025
Vezano na:Text and Data Mining valid from 2025-06-01 Text and Data Mining valid from 2025-06-01 Version of Record valid from 2025-03-08

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:titanijev dioksid, zlati nanodelci, fotokataliza


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