Synthesis And Study Of Mesoporous Magnetic Nanocomposite Particles

Magnetic nanoparticles (MNPs) have been of great interests because of their extensive applications. The synthesis of this type of materials, such as monodisperse metal and metaloxide nanoparticles have been provided in recent years. This study focused on the solvothermal method synthesis of Fe3O4 nanoparticles and prepared mesoporous Fe3O4-SiO2 nanocomposite. The solvothermal method is easy controlled and offered a good reproducibility. In the process of preparing mesoporous Fe3O4 nanocomposite, we use the hexadecyl trimethyl ammonium bromide (HTAB) as the micelle template and use an improved method to remove this template. Finally, we got the mesoporous Fe3O4 nanocomposite and compared the adsorption ability of this material to that of the-NH2 functionalized Fe3O4 nanoparticles. The result showed that mesoporous Fe3O4 nanoconposite has a better ability of adsorption and good reuseability. The content of this thesis is as following:1.Under the ethylene glycol circumstance, using iron chloride as starting material, we synthesis Fe3O4 nanoparticles and compare the difference between two experimental processes, with and without hexamethylene diamine.2.Fe3O4-SiO2 nanocomposite were prepared by the storb method. This material was used as core to prepare the mesoporous nanocomposite with the HTAB template. A Soxhlet extraction method was used in removing template process.3.Three different materials, mesoporous Fe3O4 nanocomposite,-NH2 functionalized Fe3O4 nanocomposite and Fe3O4-SiO2 were used to compare the adsorption of ribavirin, the result proving that the mesoporous Fe3O4 nanocomposite has the best adsorption ability and good reuseability.