四川大学学报（自然科学版）2011，Vol.48Issue(1)：133-138,6.DOI:10.3969/j.issn.0490-6756.2011.01.023
不同方法制备的Fe3O4磁性纳米粒表面性能研究
The surface property investigation of Fe304 nanoparticles synthesized via different methods
摘要
Abstract
There are extensive applications for superparamagnetic Fe3 04 nanoparticles in the field of science and nanotechnology, biomedicine. Therefore, magnetite nanoparticles with different surface properties will show different physical and chemical properties. It is very important to investigate the surface physical and chemical properties of Fe304 nanoparticles. X-ray photoelectron spectroscopy (XPS) is a very common and effective method to characterize the surface properties of nanoparticles. In this study,XPS and X-ray diffraction (XRD) characterization was introduced to analyze the surface element of Fe304 nanoparticles prepared via co-precipitation and high temperature decomposition method. Results showed that the obtained nanoparticles were all magnetite crystals. There is oleate on the surface of Fe3 04 nanoparticles prepared by high temperature decomposition method. Through the ligand-exchange method, dopamine could be successfully coated on the surface of Fe3 04 nanoparticles through strong covalent bond.关键词
Fe3O4/纳米晶体/XPS/XRD/表面性质Key words
Fe304 nanoparticles/ XPS/ XRD/ surface property分类
医药卫生引用本文复制引用
朱荣,江雯,曾晓波,吴尧,顾忠伟..不同方法制备的Fe3O4磁性纳米粒表面性能研究[J].四川大学学报（自然科学版）,2011,48(1):133-138,6.基金项目
国家自然科学基金面上项目(50773046) （50773046）
国家自然科学基金重点项目(50633020) （50633020）
