Size and distribution of the iron oxide nanoparticles in SBA-15 nanoporous silica via SANS study

Structural characteristics of nanocomposite series consisting of iron oxide nanoparticles (NPs) embedded in the regular pores of amorphous silica matrix (SBA-15) were investigated by means of small angle neutron scattering (SANS). By virtue of unique neutron properties, insight into the inner struct...

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Bibliographic Details
Published in:Scientific reports 2019-11, Vol.9 (1), p.15852-9, Article 15852
Main Authors: Zeleňáková, Adriana, Hrubovčák, Pavol, Kapusta, Ondrej, Kučerka, Norbert, Kuklin, Aleksander, Ivankov, Oleksandr, Zeleňák, Vladimír
Format: Article
Language:English
Subjects:
639/766
639/766/119
639/766/119/1002
639/766/25
Humanities and Social Sciences
Iron oxides
multidisciplinary
Nanoparticles
Neutron scattering
Neutrons
Science
Science (multidisciplinary)
Silica
Size distribution
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Summary:Structural characteristics of nanocomposite series consisting of iron oxide nanoparticles (NPs) embedded in the regular pores of amorphous silica matrix (SBA-15) were investigated by means of small angle neutron scattering (SANS). By virtue of unique neutron properties, insight into the inner structure and matter organization of this kind of systems was facilitated for the first time. Based on rigorous experimental support, fundamental model describing the neutron scattering intensity distribution was proposed by assuming general composite structural features. Model application to SANS data confirmed the presence of iron oxide NPs in the body of examined matrices, providing additional information on their shape, concentration and size distribution. Scattering superposition principle employed in the model conception allows for tailoring its fundamental characteristics, and renders it a potent and versatile tool for a wide range of applications.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-019-52417-w