Surface Organic Modification of Fe3O4 Magnetic Nanoparticles

武汉理工大学学报-材料科学版(英文版), 2008, 23(4): 436-439.

^1, , ^2, , ^3, , ^4, , ^5,

1.College of Material Science and Technology,Nanjing University of Technology,Nanjing 210009,China

2.College of Material Science and Technology,Nanjing University of Technology,Nanjing 210009,China

3.College of Material Science and Technology,Nanjing University of Technology,Nanjing 210009,China

4.College of Material Science and Technology,Nanjing University of Technology,Nanjing 210009,China

5.College of Material Science and Technology,Nanjing University of Technology,Nanjing 210009,China

基金项目: 江苏省自然科学基金(BK2007586) 江苏省计划项目(0701012B)

Surface Organic Modification of Fe3O4 Magnetic Nanoparticles

CUI Sheng ^1, , SHEN Xiaodong ^2, , LIN Benlan ^3, , JIANG Guodong ^4, , ZHANG Weihua ^5,

1.College of Material Science and Technology,Nanjing University of Technology,Nanjing 210009,China

2.College of Material Science and Technology,Nanjing University of Technology,Nanjing 210009,China

3.College of Material Science and Technology,Nanjing University of Technology,Nanjing 210009,China

4.College of Material Science and Technology,Nanjing University of Technology,Nanjing 210009,China

5.College of Material Science and Technology,Nanjing University of Technology,Nanjing 210009,China

Keywords： Fe3O4 nanoparticles

The surface organic modification of Fe3O4 nanoparticles with silane coupling reagent KH570 was studied.The modified and unmodified nanoparticles were characterized by FT-IR,XPS and TEM.The spectra of FT-IR and XPS revealed that KH570 was coated onto the surface of Fe3O4 nanoparticles to get Fe-O-Si bond and an organic coating layer also was formed.Fe3O4 nanoparticles were spheres partly with mean size of 18.8 nm studied by TEM,which was consistent with the result 17.9 nm calculated by Scherrer'S equation.KH570 was adsorbed on surface and formed chemistry bond to be steric hindrance repulsion which prevented nanoparticles from reuniting.Then glycol-based Fe3O4 magnetic liquids dispersed stably was gained.

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Surface Organic Modification of Fe3O4 Magnetic Nanoparticles

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