Abstract
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.
Highlights
Discharge and disposal of hazardous pollutants are governed by strict regulations
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
Dextran-coated iron oxide nanoparticles, named as DINPs, were synthesized in order to be used for future environmental applications
Summary
Discharge and disposal of hazardous pollutants are governed by strict regulations. Nowadays, due to the increase in industrial manufacturing, the regulations for discharge of hazardous2018 The Authors. Discharge and disposal of hazardous pollutants are governed by strict regulations. Due to the increase in industrial manufacturing, the regulations for discharge of hazardous. Nanotechnology has already proved to be an effective way to treat wastewaters [1,2]. Nanomaterials possess high adsorptive capabilities and may be used effectively to remove heavy metal ions from wastewaters. When magnetic nanoparticles are used, they can capture and transport heavy metal ions, being controlled by an applied magnetic field and acting as efficient vehicles to separate pollutants from wastewaters [3]
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