The impact of nanometric Fe2O3 on the magnetic, electronic, and photocatalytic behavior of TiO2@Fe2O3 heterostructures
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F23%3A10453492" target="_blank" >RIV/00216208:11310/23:10453492 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=Ie_LMrVSlL" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=Ie_LMrVSlL</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.apsusc.2022.155186" target="_blank" >10.1016/j.apsusc.2022.155186</a>
Alternative languages
Result language
angličtina
Original language name
The impact of nanometric Fe2O3 on the magnetic, electronic, and photocatalytic behavior of TiO2@Fe2O3 heterostructures
Original language description
The synthesis method we used enables the homogeneous deposition of both relatively large and small Fe2O3 nanoparticles on the surface of TiO2. SAED analysis shows that TiO2 NCs crystallize in anatase form and Fe2O3 as hematite in all cases. The formation of a TiO2@Fe2O3 heterostructure leads to an increase in photocatalytic activity (in the presence of H2O2) compared to pure titanium and iron oxides. Mo center dot ssbauer spectra confirm the existence of the hematite structure of Fe2O3 and, together with XPS, the presence of Fe(3+) only. Fe2O3 nano -particles on the surface of TiO2 nanocrystals are in the paramagnetic/superparamagnetic state. Magnetization curves under ZFC and FC conditions also indicate the effect of the size of Fe2O3 particles on the magnetic properties of TiO2@Fe2O3 nanostructures. The magnetic properties of the TiO2@Fe2O3 heterostructure exhibit sensitivity to the size of nanometric Fe2O3 grains. The energies of optical transitions in nanometric Fe2O3 reveal the occurrence of a quantum-size effect. The heterostructures forms a complex structure; on the one hand, at the TiO2 acceptor level associated with the incorporation of Fe(3+) into the structure of TiO2 anatase there is present on the other hand, the microstructure differentiation responsible for the occurrence of three optical transitions in Fe2O3.
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
10402 - Inorganic and nuclear chemistry
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
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
Applied Surface Science
ISSN
0169-4332
e-ISSN
1873-5584
Volume of the periodical
608
Issue of the periodical within the volume
January
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
12
Pages from-to
155186
UT code for WoS article
000876921700006
EID of the result in the Scopus database
2-s2.0-85139816675