The influence of catechols on the magnetization of iron oxide nanoparticles
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F23%3A00573325" target="_blank" >RIV/68378271:_____/23:00573325 - isvavai.cz</a>
Result on the web
<a href="https://hdl.handle.net/11104/0343789" target="_blank" >https://hdl.handle.net/11104/0343789</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/nano13121822" target="_blank" >10.3390/nano13121822</a>
Alternative languages
Result language
angličtina
Original language name
The influence of catechols on the magnetization of iron oxide nanoparticles
Original language description
In this study, MNPs were functionalized with pyrocatechol (CAT), pyrogallol (GAL), caffeic acid (CAF), and nitrodopamine (NDA) at pH 8 and pH 11. The functionalization of the MNPs was successful, except in the case of NDA at pH 11. The thermogravimetric analyses indicated that the surface concentration of the catechols was between 1.5 and 3.6 molecules/nm2. The saturation magnetizations (Ms) of the functionalized MNPs were higher than the starting material. XPS analyses showed only the presence of Fe(III) ions on the surface, thus refuting the idea of the Fe being reduced and magnetite being formed on the surfaces of the MNPs. Density functional theory (DFT) calculations were performed for two modes of adsorption of CAT onto two model surfaces: plain and adsorption via condensation. The total magnetization of both adsorption modes remained the same, indicating that the adsorption of the catechols does not affect the Ms.n
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
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
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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
Nanomaterials
ISSN
2079-4991
e-ISSN
2079-4991
Volume of the periodical
13
Issue of the periodical within the volume
12
Country of publishing house
CH - SWITZERLAND
Number of pages
13
Pages from-to
1822
UT code for WoS article
001017162500001
EID of the result in the Scopus database
2-s2.0-85164019672