本研究采用沸腾回流共转化法制备锰锌铁氧体纳米颗粒的基础上,分别采用TC-114(钛酸酯)、KH-151(硅烷)、TC-114与KH-15复配对铁氧体颗粒进行包覆.结果表明:包覆后的锰锌铁氧体纳米颗粒均是尖晶石结构,偶联剂包覆使纳米锰锌铁氧体颗粒尺寸变小,其中TC-114与KH-151复配后包覆得到的锰锌铁氧体纳米颗粒粒径最小(17.7 nm),比未包覆的颗粒减少10.9 nm.经TC-114、KH-151包覆后的锰锌铁氧体颗粒FT-IR光谱中分别出现了Ti-O-Fe,Si-O-S两个新的吸收峰.Zeta电位测试结果表明其有最低电位-46.1 mV,在所测pH范围最稳定(绝对值均大于30 mV),分散效果最佳.烧结后包覆颗粒的饱和磁化强度大幅提高,其中经TC-114与KH-151复配包覆的颗粒比未包覆提高了29.5％,矫顽力降低了32.3％.
参考文献
| [1] | Xuan YM;Li Q;Yang G .Synthesis and magnetic properties of Mn-Zn ferrite nanoparticles[J].Journal of Magnetism and Magnetic Materials,2007(2):464-469. |
| [2] | 崔银芳,王新,魏雨,郝顺利,王永明.软磁锰锌铁氧体纳米晶的制备及测试分析[J].人工晶体学报,2005(06):1096-1099. |
| [3] | Qiailing Li;Wenting Wang .Fabrication and properties of Mn_(0.5)Zn_(0.5)Fe_2O_4 nanofibers[J].Solid state sciences,2010(8):1303-1306. |
| [4] | Makoto Takafuji;Shunichi Ide;Hirotaka Ihara;Zhenghe Xu .Preparation of Poly(1-vinylimidazole)-Grafted Magnetic Nanoparticles and Their Application for Removal of Metal Ions[J].Chemistry of Materials,2004(10):1977-1983. |
| [5] | 姚超,丁永红,林西平,杨绪杰,陆路德,汪信.纳米TiO2有机表面改性的研究[J].无机化学学报,2005(05):638-642. |
| [6] | Wei Liu;Zhipeng Xie;Cui Jia .Surface modification of ceramic powders by titanate coupling agent for injection molding using partially water soluble binder system[J].Journal of the European Ceramic Society,2012(5):1001-1006. |
| [7] | Shen XC;Fang XZ;Zhou YH;Liang H .Synthesis and characterization of 3-aminopropyltriethoxysilane-modified superparamagnetic magnetite nanoparticles[J].Chemistry Letters,2004(11):1468-1469. |
| [8] | Angermann, A.;Hartmann, E.;T?pfer, J. .Mixed-metal carbonates as precursors for the synthesis of nanocrystalline MnZn ferrites[J].Journal of Magnetism and Magnetic Materials,2010(21):3455-3459. |
| [9] | Mohammed, K.A.;Al-Rawas, A.D.;Gismelseed, A.M.;Sellai, A.;Widatallah, H.M.;Yousif, A.;Elzain, M.E.;Shongwe, M. .Infrared and structural studies of Mg _(1-x)Zn _xFe _2O _4 ferrites[J].Physica, B. Condensed Matter,2012(4):795-804. |
| [10] | Wei-Sheng Chen;Yu-Lun Chang;Hsing-I Hsiang .Effects of titanate coupling agent on the dielectric properties of NiZn ferrite powders-epoxy resin coatings[J].CERAMICS INTERNATIONAL,2011(7):2347-2352. |
| [11] | Hemeda OM.;Barakat MM.;Said MZ. .Spectral and transport phenomena in Ni ferrite-substituted Gd2O3[J].Journal of Magnetism and Magnetic Materials,2001(2):132-142. |
| [12] | Yanlong Tai;Jiasheng Qian;Yuchuan Zhang .Study of surface modification of nano-SiO2 with macromolecular coupling agent (LMPB-g-MAH)[J].Chemical engineering journal,2008(1/3):354-361. |
| [13] | 黄可龙,陈洁,刘素琴,李桂银.磁性Fe3O4/壳聚糖的化学修饰及包覆机理研究[J].无机化学学报,2007(08):1491-1495. |
| [14] | 李世琳,毛健,陈治,李华峰,陈国需,蒋渝.纳米银溶胶稳定性的影响机制研究[J].稀有金属材料与工程,2008(08):1436-1440. |
| [15] | 孙文通,王仕兴,张晓红,钟读波,王亚琴,祝红昆,李军明.层层自组装修饰磁性纳米粒子及蛋白质吸附研究[J].化学学报,2011(03):351-355. |
| [16] | Teja, AS;Koh, PY .Synthesis, properties, and applications of magnetic iron oxide nanoparticles[J].Progress in Crystal Growth and Characterization of Materials,2009(1/2):22-45. |
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