Textural characterization of the biocomposites with iron oxides formed by in situ precipitation

Iuliia Bolbukh, Oleg Popkov, Gleb Yurkov, Ajna Tóth, K. László, Valentin Tertykh

Research output: Contribution to journalArticle

Abstract

Composites which contain iron oxide nanoparticles and unmodified or aminated silica were synthesised by in situ precipitation of ferrous salts in chitosan or glucose solution. The metal-containing phase was obtained by the Elmore reaction using different ratios of ferrous ammonium sulfate hexahydrate (FeSO4(NH4)2SO46H2O) and ferric chloride hexahydrate (FeCl36H2O). The cross-linked chitosan and composites obtained were characterized using FTIR spectroscopy. In addition for selected samples XRD, DSC, and specific surface area measurements were carry out. Features of chitosan structure in the presence of iron oxide nanoparticles and silica were studied along with effects of the nature of the iron oxides precursors, silica surface, and stabilizer on iron oxide particles size and composition. The analysis results indicate that in situ co-precipitation of iron oxide precursors in chitosan or glucose allows producing Fe3O4 particles with the average size ca. 5-7 nm. The presence of silica leads to particles size decrease which can be controlled, along with iron oxide particles location, by changing the silica surface functionality.

Original languageEnglish
Pages (from-to)92-102
Number of pages11
JournalJournal of Nanostructured Polymers and Nanocomposites
Volume7
Issue number3
Publication statusPublished - 2011

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Iron oxides
Silicon Dioxide
Chitosan
Silica
Glucose
Particle size
Nanoparticles
Composite materials
Coprecipitation
Specific surface area
ferric oxide
Salts
Metals
Spectroscopy
Chemical analysis

ASJC Scopus subject areas

  • Ceramics and Composites
  • Polymers and Plastics

Cite this

Textural characterization of the biocomposites with iron oxides formed by in situ precipitation. / Bolbukh, Iuliia; Popkov, Oleg; Yurkov, Gleb; Tóth, Ajna; László, K.; Tertykh, Valentin.

In: Journal of Nanostructured Polymers and Nanocomposites, Vol. 7, No. 3, 2011, p. 92-102.

Research output: Contribution to journalArticle

Bolbukh, Iuliia ; Popkov, Oleg ; Yurkov, Gleb ; Tóth, Ajna ; László, K. ; Tertykh, Valentin. / Textural characterization of the biocomposites with iron oxides formed by in situ precipitation. In: Journal of Nanostructured Polymers and Nanocomposites. 2011 ; Vol. 7, No. 3. pp. 92-102.
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