多孔SiO2包裹磁性纳米颗粒Fe3O4的制备与表征

雷洁梅; 吕柳; 刘玲; 许小亮

doi:10.7498/aps.60.017501

摘要

采用加热分解油酸铁法制备了Fe3O4磁性纳米颗粒,并用有机模板和反相微乳液相结合的方法将磁性纳米颗粒包裹在多孔二氧化硅中.用红外光谱(FTIR)研究了不同的处理方式对油酸铁表面官能团的影响及油酸的反应浓度和加热分解油酸铁的过程中升温速率对Fe3O4纳米颗粒的影响.结果表明,用乙醇和丙酮处理后的固态蜡状油酸铁表面的油酸基团会受到损害,将不利于加热分解时形成单分散性的Fe3O4纳

关键词:

We prepared the magnetic nanoparticles of Fe3O4from thermal decomposition of the Fe oleates precursors synthesized by iron chlorides and sodium oleate,and the SiO2-coated Fe3O4nanoparticles by combining the reverse microemulsion and organic template methods. FTIR was adopted to investigate the surface of Fe oleate under different treatments,and the growth of Fe3O4 nanoparticles with different reactant concentrations of oleic acid and heating rates. The results indicated that the superficial oleic acid of the waxy solid Fe oleates after extraction from ethanol and acetone was partially removed,which impairs the formation of monodispersion Fe3O4 naoparticles. The effect of heating rate on the growth of nanoparticles was weak compared with that of the concentration of Fe oleates. When the concentration of oleic acid is 0.09 mol/L, a characteristic peak of Fe3O4 at 576 cm-1(assignable to the bending vibrations of Fe-O) is enhanced significantly. The XRD (X-ray diffraction) spectra,TEM (transmission electron microscopy) images and SQUID (superconducting quantum interference device) confirmed that the Fe3O4 nanoparticles are spinel cubic crystal and have a good monodispersity and super-paramagnetism. Whats more,the TEM of SiO2-coated Fe3O4 nanoparticles also confirmed that the Fe3O4 nanoparticles were well coated by mesoporous SiO2.

Keywords:

作者及机构信息

1.
中国科学技术大学物理系,合肥 230026

基金项目: 国家自然科学基金(批准号: 50872129)和国家重点基础研究发展计划(973)(批准号: 2006CB302900)资助的课题.

Authors and contacts

1.
Department Physics, University of Science and Technology of China, Hefei 230026, China

参考文献

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[2]	Meldrum F C, Heywood B R, Mann S 1992 Science 257 522
[3]	52 3130 (in Chinese) [何志巍、甄聪棉、兰伟、王印月 2003 物理学报 52 3130]
[4]	Yang J H, Ma S C, Xu Y 2008 Chin. Phys. B 17 1674
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[6]	Ao Q, Zhang W L 2007 Acta Phys. Sin. 56 1135 (in Chinese) [敖琪、张瓦利 2007 物理学报 56 1135]
[7]	Zhang H, Liu X 2009 Acta Phys. Sin. 58 4970 (in Chinese) [张弘、刘曦 2009 物理学报 58 4970]
[8]	Jaiswal J K, Mattoussi H, Matthew Mauro J, Simon S M 2003 Nat. Biotechnol. 21 47
[9]	Sun S, Murray C B, Weller D, Folks L, Moser A 2000 Science 287 1989
[10]	Harisinghani M G, Barentsz J, Hahn P F 2003 Engl. J. Med. 348 2491
[11]	Jordan A,Scholz R,Wust P 1999 J. Magn. Magn. Mater. 194 185
[12]	Souza K C, Mohallem N D S, Sousa E M B 2010 J. Sol-Gel. Sci. Technol. 53 418
[13]	Kim J, Lee J E, Lee J 2006 J. Am. Chem. Soc. 128 688
[14]	He Z W, Zhen C M, Lan W, Wang Y Y 2003 Acta Phys. Sin.
[15]	Li S F, Wang T, Wang Y 2005 Acta Phys. Sin. 54 3100 (in Chinese) [李发伸、王涛、王颖 2005 物理学报 54 3100]
[16]	López-Quintela M A, Rivas J 1993 J. Colloid Interface Sci. 158 446
[17]	Xu J, Yang H B, Fu W Y 2007 J. Magn. Magn. Mater. 309 307
[18]	Park J, An K, Hwang Y 2004 Nat. Mater. 3 891
[19]	Lu Y, Yin Y D, Mayers B T, Xia Y N 2002 Nano Lett. 2 183
[20]	Yi D K, Selvan T, Lee S S 2005 J. Am. Chem. Soc. 127 4990
[21]	Bronstein L M, Huang X L, Retrum J 2007 Chem. Mater. 19 3624
[22]	Lin C L, Lee C F, Chiu W Y 2005 J. Colloid Interface Sci. 291 411
[23]	Sederlind F, Pedersen H 2005 J. Colloid Interface Sci. 288 140
[24]	Zhang L, He R, Gu H C 2006 App. Surf. Sci. 253 2611
[25]	Tao K, Dou H J, Sun K 2006 Chem. Mater. 18 5273
[26]	Waldron R D 1955 Phys. Rev. 99 1727
[27]	Wu H X, Wang T J, Jin Y 2007 Ind. Eng. Chem. Res. 46 761
[28]	Boutonnet M, Kizling J, Stenius P, Maire G 1982 Colloids Surf. 5 209

施引文献

[1]	Yu D L, Du Y W 2005 Acta Phys. Sin. 54 930 (in Chinese) [于冬亮、都有为 2005 物理学报 50 2775]
[2]	Meldrum F C, Heywood B R, Mann S 1992 Science 257 522
[3]	52 3130 (in Chinese) [何志巍、甄聪棉、兰伟、王印月 2003 物理学报 52 3130]
[4]	Yang J H, Ma S C, Xu Y 2008 Chin. Phys. B 17 1674
[5]	Wang J Z, Fang Q Q 2004 Acta Phys. Sin. 53 3186 (in Chinese) [汪金芝、方庆清 2004 物理学报 53 3186]
[6]	Ao Q, Zhang W L 2007 Acta Phys. Sin. 56 1135 (in Chinese) [敖琪、张瓦利 2007 物理学报 56 1135]
[7]	Zhang H, Liu X 2009 Acta Phys. Sin. 58 4970 (in Chinese) [张弘、刘曦 2009 物理学报 58 4970]
[8]	Jaiswal J K, Mattoussi H, Matthew Mauro J, Simon S M 2003 Nat. Biotechnol. 21 47
[9]	Sun S, Murray C B, Weller D, Folks L, Moser A 2000 Science 287 1989
[10]	Harisinghani M G, Barentsz J, Hahn P F 2003 Engl. J. Med. 348 2491
[11]	Jordan A,Scholz R,Wust P 1999 J. Magn. Magn. Mater. 194 185
[12]	Souza K C, Mohallem N D S, Sousa E M B 2010 J. Sol-Gel. Sci. Technol. 53 418
[13]	Kim J, Lee J E, Lee J 2006 J. Am. Chem. Soc. 128 688
[14]	He Z W, Zhen C M, Lan W, Wang Y Y 2003 Acta Phys. Sin.
[15]	Li S F, Wang T, Wang Y 2005 Acta Phys. Sin. 54 3100 (in Chinese) [李发伸、王涛、王颖 2005 物理学报 54 3100]
[16]	López-Quintela M A, Rivas J 1993 J. Colloid Interface Sci. 158 446
[17]	Xu J, Yang H B, Fu W Y 2007 J. Magn. Magn. Mater. 309 307
[18]	Park J, An K, Hwang Y 2004 Nat. Mater. 3 891
[19]	Lu Y, Yin Y D, Mayers B T, Xia Y N 2002 Nano Lett. 2 183
[20]	Yi D K, Selvan T, Lee S S 2005 J. Am. Chem. Soc. 127 4990
[21]	Bronstein L M, Huang X L, Retrum J 2007 Chem. Mater. 19 3624
[22]	Lin C L, Lee C F, Chiu W Y 2005 J. Colloid Interface Sci. 291 411
[23]	Sederlind F, Pedersen H 2005 J. Colloid Interface Sci. 288 140
[24]	Zhang L, He R, Gu H C 2006 App. Surf. Sci. 253 2611
[25]	Tao K, Dou H J, Sun K 2006 Chem. Mater. 18 5273
[26]	Waldron R D 1955 Phys. Rev. 99 1727
[27]	Wu H X, Wang T J, Jin Y 2007 Ind. Eng. Chem. Res. 46 761
[28]	Boutonnet M, Kizling J, Stenius P, Maire G 1982 Colloids Surf. 5 209

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