The Fe3O4 films were prepared by in-situ oxidative hydrolysis on chitosan. The structures and characteristics of the prepared Fe3O4 films were investigated by X-ray diffractometry (XRD), scanning electron microscopy (SEM), atom force microscopy (AFM), vibrating sample magnetometry (VSM) and thermogravimetric-differential thermal analysis (TG-DTA). The results show that, (1) the as-synthesized Fe3O4 films are pure Fe3O4 with cubic inverse spinel structure; (2) the network structured film can be obtained at lower temperature, and the compact particle film at higher temperature; (3) the prepared Fe3O4 films are super-paramagnetic, and the saturation magnetization is improved with increasing the reaction temperature, which is 49.03 emu/g at 80℃;(4) the temperature of phase transformation from Fe3O4 to α-Fe2O3 is about 495℃. Besides, the formation mechanism of Fe3O4 film was also proposed.
参考文献
| [1] | Thomas A Sorenson;Simon A Morton;G Dan Waddill;Jay A Switzer .[J].Journal of the American Chemical Society,2002,124:7604. |
| [2] | Y. Zhou;Ciaran McEvoy;IV. Shvets .Influence of reducing thermo-chemical treatment on magnetic properties of magnetite Fe_3O_4 (10 0) epitaxial films[J].Journal of Magnetism and Magnetic Materials,2005(2):1033-1036. |
| [3] | S. M. Watts;K. Nakajima;S. van Dijken;J. M. D. Coey .Transport characteristics of magnetite thin films grown onto GaAs substrates[J].Journal of Applied Physics,2004(11):7465-7467. |
| [4] | A. Bollero;M. Ziese;R. Holme .Influence of thickness on microstructural and magnetic properties in Fe_3O_4 thin films produced by PLD[J].Journal of Magnetism and Magnetic Materials,2005(1/2):279-289. |
| [5] | K. Shalini;G.N. Subbanna;S. Chandrasekaran;S.A. Shivashankar .Thin films of iron oxide by low pressure MOCVD using a novel precursor: tris(t-butyl-3-oxo-butanoato)iron(Ⅲ)[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,2003(1):56-60. |
| [6] | Masafumi Chiba;Kazumasa Morio;Yoshiharu Koizumi .[J].Journal of Magnetism and Magnetic Materials,2002,239:457. |
| [7] | X D Liu;Seiichi Tokura;Masahiro Haruki;Norio Nishi,Nobuo Sakairi .[J].Carbohydrate Polymers,2002,49(02):103. |
| [8] | W S Wan Ngah;S Ab Ghani;A Kamari .[J].Bioresource Technology,2005,96(04):443. |
| [9] | 王姗,房喻,张颖,王明珍,胡道道,廖奕坤.壳聚糖-CdS复合膜制备及其对吡啶的传感特性[J].物理化学学报,2003(06):514-518. |
| [10] | X L Luo;J J Xu;Q Zhang;G J Yang,H Y Chen .[J].Bios Bioe,2005,21:190. |
| [11] | J Wang;K Zhang;Z W Peng;Q W Chen .[J].Journal of Crystal Growth,2004,266:500. |
| [12] | R H Chen;M L Tsaih .[J].Journal of Applied Polymer Science,1997,66:161. |
| [13] | J Berger;M Reist;J M Mayer;O Felt N A Peppas,R Gurny .[J].European Journal of Pharmaceutics and Biopharmaceutics,2004,57:19. |
| [14] | 张秀军,郎惠云,魏永锋,张维平.壳聚糖亚铁螯合物的合成及吸附动力学[J].应用化学,2003(08):749-753. |
| [15] | L Liz;J Quintela;J Mira .[J].Journal of Materials Science,1994,29:3797. |
| [16] | Zhongbing Huang;Fangqiong Tang .Preparation,structure,and magnetic properties of polystyrene coated by Fe_3O_4 nanoparticles[J].Journal of Colloid and Interface Science,2004(1):142-147. |
| [17] | J Wang;J Sun;Q Sun;Q Chen .[J].Materials Research Bulletin,2003,38:1113. |
| [18] | M.M. Beppu;E.J. Arruda;R.S. Vieira;N.N. Santos .Adsorption of Cu(Ⅱ) on porous chitosan membranes functionalized with histidine[J].Journal of Membrane Science,2004(1/2):227-235. |
| [19] | I. Yamaguchi;K. Tokuchi;H. Fukuzaki .Preparation and microstructure analysis of chitosan/hydroxyapatite nanocomposites[J].Journal of biomedical materials research, Part B. Applied biomaterials,2001(1):20-27. |
| [20] | 邹涛,郭灿雄,段雪,张密林.强磁性Fe3O4纳米粒子的制备及其性能表征[J].精细化工,2002(12):707-710. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%