Pt Single Atoms as Co-Catalysts on CdS-Sensitized Single-Crystalline TiO2 Nanoflakes for Enhanced Visible Light Photocatalytic H2 Generation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15640%2F23%3A73620184" target="_blank" >RIV/61989592:15640/23:73620184 - isvavai.cz</a>
Alternative codes found
RIV/61989100:27640/23:10253034
Result on the web
<a href="https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/cctc.202300327" target="_blank" >https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/cctc.202300327</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/cctc.202300327" target="_blank" >10.1002/cctc.202300327</a>
Alternative languages
Result language
angličtina
Original language name
Pt Single Atoms as Co-Catalysts on CdS-Sensitized Single-Crystalline TiO2 Nanoflakes for Enhanced Visible Light Photocatalytic H2 Generation
Original language description
Studies on single-atom catalysts (SACs) with individually isolated metal atoms anchored on specific supports have gained great interest in photocatalysis due to their enhanced catalytic activity and optimal atom utilization. By providing an optimized number of active sites and enhancing their intrinsic activity, SACs afford a distinctive platform for photocatalysis at the atomic level. In this study, we investigate the photocatalytic H-2 generation of Pt single atoms (SAs) anchored on CdS-sensitized single crystalline anatase TiO2 nanoflakes (ATNF) in the visible spectral range. Vertically-aligned ATNF were synthesized on fluorine-doped tin oxide substrates by a hydrothermal process, which were further sensitized by CdS nanoislands (NIs) using the successive ionic layer adsorption and reaction (SILAR) technique. Finally, a reactive-deposition approach was used to successfully anchor Pt SAs on CdS-sensitized ATNF. Under optimized conditions, the highest photocatalytic H-2 evolution on Pt-anchored single atom CdS sensitized ATNF was 17.8 mu L h(-1) under visible light illumination, which is 15.8, 7.5, and 6.7-fold higher than bare CdS/FTO, PtSA/CdS/FTO, and ATNF, respectively. Overall, the density of Pt SAs plays a vital role via strong trapping of the photogenerated electrons and significantly improves the efficiency of electron-hole separation, making PtSA/ATNF efficient solar-driven photocatalysts.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
21002 - Nano-processes (applications on nano-scale); (biomaterials to be 2.9)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ChemCatChem
ISSN
1867-3880
e-ISSN
1867-3899
Volume of the periodical
15
Issue of the periodical within the volume
12
Country of publishing house
DE - GERMANY
Number of pages
8
Pages from-to
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UT code for WoS article
000989571900001
EID of the result in the Scopus database
2-s2.0-85159570871