Light-Induced Defect Formation and Pt Single Atoms Synergistically Boost Photocatalytic H2Production in 2D TiO2-Bronze Nanosheets
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15640%2F22%3A73618676" target="_blank" >RIV/61989592:15640/22:73618676 - isvavai.cz</a>
Alternative codes found
RIV/61989100:27640/22:10251577
Result on the web
<a href="https://pubs.acs.org/doi/10.1021/acssuschemeng.2c05708" target="_blank" >https://pubs.acs.org/doi/10.1021/acssuschemeng.2c05708</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acssuschemeng.2c05708" target="_blank" >10.1021/acssuschemeng.2c05708</a>
Alternative languages
Result language
angličtina
Original language name
Light-Induced Defect Formation and Pt Single Atoms Synergistically Boost Photocatalytic H2Production in 2D TiO2-Bronze Nanosheets
Original language description
Ultrathin two-dimensional (2D) semiconductor nanosheets decorated with single atomic species (SAs) have recently attracted increasing attention due to their abundant surface-exposed reactive sites and maximum SAs binding capabilities thus lowering the catalyst cost, without sacrificing high performance for photocatalytic hydrogen (H2) production from water. Here, we present a strategy to prepare titanium dioxide-bronze nanosheets (TiO2-BNS) and H2-reduced TiO2nanosheets (TiO2-HRNS) synthesized, characterized, and applied for photocatalytic H2production. Surprisingly, black TiO2-HRNS show complete photo inactivity, while the TiO2-BNS-Pt0.05nanohybrid shows excellent H2production rate with a very low loading of 0.05 wt % Pt. TiO2-BNS-Pt0.05presents around 10 and 99 times higher photocatalytic rate than pristine TiO2-BNS under solar and 365 nm UV-LED light irradiation, respectively. Due to the 2D morphology and the presence of abundant coordinating sites, the successful formation of widely dispersed Pt SAs was achieved. Most excitingly, the in situ formation of surface-exposed defect sites (Ti3+) was observed for TiO2-BNS under light illumination, suggesting their significant role in enhancing the H2production rate. This self-activation and amplification behavior of TiO2-BNS can be extended to other 2D systems and applied to other photocatalytic reactions, thus providing a facile approach for fully utilizing noble metal catalysts via the successful formation of SAs.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
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
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ACS Sustainable Chemistry & Engineering
ISSN
2168-0485
e-ISSN
2168-0485
Volume of the periodical
10
Issue of the periodical within the volume
51
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
"17286 "- 17296
UT code for WoS article
000901623800001
EID of the result in the Scopus database
2-s2.0-85144253205