采用原位生长法,以钛氧有机化合物为前驱物低温液相在磁性Fe3O4的表面直接形成纳米TiO2,制得Fe3O4/TiO2纳米磁性复合体,利用XRD、SEM、DLS、XPS和PPMS(磁性材料综合物性测量系统)对样品的结构和性能进行表征,并讨论Ti-O-Fe键的形成机理.结果表明:Fe3O4表面被锐钛型的TiO2包覆,且包覆效果良好.该磁性复合体颗粒分布均匀,平均粒径为59nm,饱和磁化强度为3.2emu/g,矫顽力为21 Oe.
参考文献
| [1] | P.J. van der Zaag;P.J.H. Bloemen;J.M. Gaines .On the construction of an Fe_(3)O_(4)-based all-oxide spin valve[J].Journal of Magnetism and Magnetic Materials,2000(1/3):301-308. |
| [2] | Sahoo Y;Goodarzi A;Swihart MT;Ohulchanskyy TY;Kaur N;Furlani EP;Prasad PN .Aqueous ferrofluid of magnetite nanoparticles: Fluorescence labeling and magnetophoretic control[J].The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical,2005(9):3879-3885. |
| [3] | YAN H;ZHANG J C;YOU C X et al.Influences of different synthesis conditions on properties of Fe3O4 nanoparticles[J].Materials Chemistry and Physics,2009,113:46-52. |
| [4] | Hong RY;Pan TT;Han YP;Li HZ;Ding J;Han SJ .Magnetic field synthesis of Fe3O4 nanoparticles used as a precursor of ferrofluids[J].Journal of Magnetism and Magnetic Materials,2007(1):37-47. |
| [5] | John T;Rannacher D;Engel A .Influence of surface tension on the conical meniscus of a magnetic fluid in the field of a current-carrying wire[J].Journal of Magnetism and Magnetic Materials,2007(1):31-35. |
| [6] | Fannin PC;Marin CN;Malaescu I;Stefu N .An investigation of the microscopic and macroscopic properties of magnetic fluids[J].Physica, B. Condensed Matter,2007(1/2):87-92. |
| [7] | Kumar Gupta A;R Naregalkar R;Deep Vaidya V;Gupta M .Recent advances on surface engineering of magnetic iron oxide nanoparticles and their biomedical applications[J].Nanomed,2007,2(01):23-39. |
| [8] | 陈瑾,张辉,杨德仁,谢秋萍,黄海.超顺磁性Fe3O4纳米颗粒的多元醇法制备及其在磁共振造影剂中的应用[J].材料科学与工程学报,2008(06):878-883. |
| [9] | 林本兰,沈晓冬,崔升.白蛋白包覆纳米Fe3O4磁性粒子的制备与表征[J].材料科学与工程学报,2007(01):88-90. |
| [10] | 蒋琳,高峰,贺蓉,崔大祥.氧化硅包裹四氧化三铁微球的制备及表征[J].材料科学与工程学报,2009(03):352-355. |
| [11] | Tyrpekl V;Vejpravova J P;Roca A G et al.Magnetically separable photocatalytic composie gamma-Fe2O3@TiO2 synthesized by heterogeneous precipitation[J].Appl Surf Sei,2011,257(11):4844-4848. |
| [12] | SHI Zhongliang,ZHANG Xiaoyan,YAO Shuhua.Synthesis and photocatalytic properties of lanthanum doped anatase TiO2 coated Fe3O4 composites[J].稀有金属（英文版）,2011(03):252-257. |
| [13] | Watson S;Beydoun D;Amal R .Synthesis of a novel magnetic photoeatalyst by deposition of nanosized TiO2 crystals on to a magnetic core[J].Journal of Photochemistry and Photobiology A:Chemistry,2002,148:303-313. |
| [14] | Beydoun D.;Amal R. .Implications of heat treatment on the properties of a magnetic iron oxide-titanium dioxide photocatalyst[J].Materials Science & Engineering, B. Solid-State Materials for Advanced Technology,2002(1):71-81. |
| [15] | Ye F X;Ohmori A .The photocatalytic activity and photoabsorption of plasma sprayed TiO2-Fe3O4 binary oxide coatings[J].Surface and Coatings Technology,2002,160:62-67. |
| [16] | Weiping Huang;Xianghai Tang;Israel Felner .Preparation and characterization of Fe_xO_y-TiO_2 via sonochemical synthesis[J].Materials Research Bulletin: An International Journal Reporting Research on Crystal Growth and Materials Preparation and Characterization,2002(10):1721-1735. |
| [17] | Gao Y.;Chen BH.;Li HL.;Ma YX. .Preparation and characterization of a magnetically separated photocatalyst and its catalytic properties[J].Materials Chemistry and Physics,2003(1):348-355. |
| [18] | Li Y;Xu XQ;Qi DW;Deng CH;Yang PY;Zhang XM .Novel Fe3O4@TiO2 core-shell microspheres for selective enrichment of phosphopeptides in phosphoproteome analysis[J].Journal of proteome research,2008(6):2526-2538. |
| [19] | Chen CT;Chen YC .Fe3O4/TiO2 core/shell nanoparticles as affinity probes for the analysis of phosphopeptides using TiO2 surface-assisted laser desorption/ionization mass spectrometry[J].Analytical chemistry,2005(18):5912-5919. |
| [20] | Chun-Ling Zhu;Mi-Lin Zhang;Ying-Jie Qiao .Fe3O4/TiO2 Core/Shell Nanotubes: Synthesis and Magnetic and Electromagnetic Wave Absorption Characteristics[J].The journal of physical chemistry, C. Nanomaterials and interfaces,2010(39):16229-16235. |
| [21] | 陈小泉,古国榜,刘焕彬.钛酸丁酯与乙酐的反应和产物钛氧有机化合物结构分析[J].化学学报,2003(10):1592-1596. |
| [22] | 陈小泉,古国榜.钛氧有机化合物常压低温液相合成纳米二氧化钛晶体的研究[J].无机化学学报,2002(07):749-752. |
| [23] | JCPDS:89-4319.The Intertional Center for Diffraction Data[S].Philadelphia,PA,USA,2004. |
| [24] | Cheng, TC;Yao, KS;Yeh, N;Chang, CI;Hsu, HC;Chien, YT;Chang, CY .Visible light activated bactericidal effect of TiO2/Fe3O4 magnetic particles on fish pathogens[J].Surface & Coatings Technology,2009(6/7):1141-1144. |
| [25] | JCPDS:84-1285.The Intertional Center for Diffraction Data[S].Philadelphia,PA,USA,2004. |
| [26] | 覃操,王亭杰,金涌.液相沉积法制备TiO2颗粒表面包覆SiO2纳米膜[J].物理化学学报,2002(10):884-889. |
| [27] | 施卫贤,杨俊,王亭杰,金涌.磁性 Fe3O4微粒表面有机改性[J].物理化学学报,2001(06):507-510. |
| [28] | Wei Yan;Han Bing;Hu Xiaoyang.Synthesis of Fe3 O4 nanopaiticles and their magnetic properties[J].ProEng,2010(27):632-637. |
| [29] | 陈善飞,王正良,虞秀平.磁性液体的粘度在外施磁场下呈各向异性的机理研究[J].磁性材料及器件,2008(01):21-23. |
| [30] | 刘鹏,李伟,叶双莉,任天令,刘理天.低矫顽力GMR磁传感器及其单畴模型的研究[J].微纳电子技术,2007(07):216-218. |
| [31] | 孙光飞;强文江.磁功能材料[M].北京:化学工业出版社,2007:103. |
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