Iron Doped SBA-15 Mesoporous Silica Studied by Mössbauer Spectroscopy
Joint Authors
Laskowski, Łukasz
Laskowska, Magdalena
Jelonkiewicz, Jerzy
Galkowski, Tomasz
Pawlik, Piotr
Piech, Henryk
Doskocz, Marek
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-03-29
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
Mesoporous silica SBA-15 containing propyl-iron-phosphonate groups were considered to confirm their molecular structure.
To detect the iron-containing group configuration the Mössbauer spectroscopy was used.
Both mesoporous silica SBA-15 containing propyl-iron-phosphonate groups and pure doping agent (iron acetylacetate) were investigated using Mössbauer spectroscopy.
The parameters such as isomer shift, quadrupole splitting, and asymmetry in 57Fe Mössbauer spectra were analyzed.
The differences in Mössbauer spectra were explained assuming different local surroundings of Fe nuclei.
On this base we were able to conclude about activation of phosphonate units by iron ions and determinate the oxidation state of the metal ion.
To examine bonding between iron atoms and phosphonic units the resonance Raman spectroscopy was applied.
The density functional theory (DFT) approach was used to make adequate calculations.
The distribution of active units inside silica matrix was estimated by comparison of calculated vibrational spectra with the experimental ones.
Analysis of both Mössbauer and resonance Raman spectra seems to confirm the correctness of the synthesis procedure.
Also EDX elemental analysis confirms our conclusions.
American Psychological Association (APA)
Laskowski, Łukasz& Laskowska, Magdalena& Jelonkiewicz, Jerzy& Galkowski, Tomasz& Pawlik, Piotr& Piech, Henryk…[et al.]. 2016. Iron Doped SBA-15 Mesoporous Silica Studied by Mössbauer Spectroscopy. Journal of Nanomaterials،Vol. 2016, no. 2016, pp.1-6.
https://search.emarefa.net/detail/BIM-1108998
Modern Language Association (MLA)
Laskowski, Łukasz…[et al.]. Iron Doped SBA-15 Mesoporous Silica Studied by Mössbauer Spectroscopy. Journal of Nanomaterials No. 2016 (2016), pp.1-6.
https://search.emarefa.net/detail/BIM-1108998
American Medical Association (AMA)
Laskowski, Łukasz& Laskowska, Magdalena& Jelonkiewicz, Jerzy& Galkowski, Tomasz& Pawlik, Piotr& Piech, Henryk…[et al.]. Iron Doped SBA-15 Mesoporous Silica Studied by Mössbauer Spectroscopy. Journal of Nanomaterials. 2016. Vol. 2016, no. 2016, pp.1-6.
https://search.emarefa.net/detail/BIM-1108998
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1108998