期刊
ROYAL SOCIETY OPEN SCIENCE
卷 5, 期 3, 页码 -出版社
ROYAL SOC
DOI: 10.1098/rsos.171525
关键词
magnetic nanoparticles; organic compounds; environmental applications; characterization techniques
资金
- UEFISCDI through PNIII Program [7PTE/2016, 87BG/2016]
- UEFISCDI through POC Program [ID P_37_649, 49/2016]
- UEFISCDI through UPB-GEX Program [68/25.09.2017, 43/2017]
Synthesis and characterization of iron oxide nanoparticles coated with a large molar weight dextran for environmental applications are reported. The first experiments involved the synthesis of iron oxide nanoparticles which were coated with dextran at different concentrations. The synthesis was performed by a co-precipitation technique, while the coating of iron oxide nanoparticles was carried out in solution. The obtained nanoparticles were characterized by using scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction spectrometry, Fourier transform infrared spectroscopy and superconducting quantum interference device magnetometry. The results demonstrated a successful coating of iron oxide nanoparticles with large molar weight dextran, of which agglomeration tendency depended on the amount of dextran in the coating solution. SEM and TEM observations have shown that the iron oxide nanoparticles are of about 7 nm in size.
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