Size-controlled monodisperse hydrophobic and hydrophilic magnetite nanoparticles: One-pot synthesis, characterization, and the mechanism study

作者：Chen, Fenghua^*; Zhao, Taonan; Chen, Qingtao; Han, Lifeng; Fang, Shaoming; Chen, Zhijun

来源：Materials Research Bulletin, 2013, 48(10): 4093-4099.

DOI：10.1016/j.materresbull.2013.06.027

• Magnetic materials
• Nanostructures
• Chemical synthesis
• Magnetic properties

Depending on whether to add oleic acid in the reaction system, monodisperse magnetite nanoparticles with hydrophobicity and hydrophilicity are prepared by one-step "polyolthermal reaction". Combined techniques of TEM, XRD, XPS and FTIR are used to characterize the obtained nanoparticles. The diameter of nanoparticles can be tuned easily by a simple change in the reaction time and the concentration of iron precursor. The method proposed here combines all the advantages of the high-temperature thermal decomposition method and the solvothermal process. Details about formation processes of magnetite nanoparticles are studied using UV-vis absorption spectrum. The result shows a different nucleation procedure and nucleation time for oil-soluble and water-soluble nanoparticles due to the presence of oleic acid. Magnetic properties of the prepared magnetite nanoparticles are also measured on vibrating sample magnetometer at room temperature.

• 出版日期2013-10
• 单位郑州轻工业大学