|Title||Nanocomposites Based on Chitozan and Carbon Nanotubers with Iron Oxides Formed by in situ Precipitation|
Iron oxide nanoparticles
|Date of Issue||2013|
|Publisher||Sumy State University|
|Citation||Nanocomposites Based on Chitozan and Carbon Nanotubers with Iron Oxides Formed by in situ Precipitation [Текст] / I.M. Bolbukh, G.S. Gunko, G.Y. Yurkov et al. // Nanomaterials: Applications & Properties (NAP-2013): 2-nd International conference, Alushta, the Crimea, September 17-22, 2012 / Edited by: A. Pogrebnjak. - Sumy: Sumy State University, 2013. - V.2, No3. - 03NCNN18|
Composites which contain iron oxide nanoparticles and unmodified or aminated silica were synthesised
by in situ precipitation of ferrous salts in chitozan or glucose solution. Nanocomposites based on oxidized
or aminated carbon nanotubers were obtained by immobilizing oxide nanoparticles in surface layer during
salt precipitation in water dispersion. The metal-containing phase was obtained by the Elmore reaction using
different ratios of ferrous ammonium sulfate hexahydrate (FeSO4∙(NH4)2SO4∙6H2O) and ferric chloride
hexahydrate (FeCl3∙6H2O). The composites obtained were characterized using FTIR spectroscopy. In addition
for selected samples XRD, DSC, and specific surface area measurements were carry out. 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 functional ity.
Characteristics and location of iron oxide nanoparticles in nanotubers modified layer are strongly depended
from nature of the groups attached to surface.
When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/35367
|Appears in Collections:||
Наукові видання (ЕлІТ)
|Bolbukh_Nanocomposites.pdf||486,62 kB||Adobe PDF||117|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.