自组装磁性微囊的合成与制备
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摘要
以聚丙烯酰胺(PAM)为表面活性剂,采用一步水热法合成了超顺磁性Fe3O4纳米粒子,并且在改变PAM用量的条件下合成了囊状的磁性材料。通过X射线衍射(XRD)、扫描电子显微镜(SEM)、振动样品磁强计等对磁性Fe3O4的结构、形貌、磁性进行表征。结果表明,磁性微囊外径约为200 nm,组成微囊的Fe3O4纳米粒子其粒径分布在30 nm左右,磁性微囊的饱和磁化强度为62.5 emu/g,表现出超顺磁性。
Superparamagnetic Fe3O4 nanoparticles,using polyacrylamide as surfactant,are synthesized by one-step hydrothermal method. And then the sacciform magnetic material is obtained by changing the dosage of surfactant. The structure,morphology and magnetism property of the samples are characterized via X-ray diffraction( XRD),scanning electron microscope( SEM) and vibrating sample magnetometer.The results show that the outside diameter of the magnetocapsules is about 200 nm. The size of Fe3O4 nanoparticles,composing the magnetocapsules,is about 30 nm. The magnetocapsules manifests a superparamagnetism,and the saturation magnetization intensity of the magnetocapsules is 62. 5 emu / g.
Superparamagnetic Fe3O4 nanoparticles,using polyacrylamide as surfactant,are synthesized by one-step hydrothermal method. And then the sacciform magnetic material is obtained by changing the dosage of surfactant. The structure,morphology and magnetism property of the samples are characterized via X-ray diffraction( XRD),scanning electron microscope( SEM) and vibrating sample magnetometer.The results show that the outside diameter of the magnetocapsules is about 200 nm. The size of Fe3O4 nanoparticles,composing the magnetocapsules,is about 30 nm. The magnetocapsules manifests a superparamagnetism,and the saturation magnetization intensity of the magnetocapsules is 62. 5 emu / g.
引文
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[29]张磊,丁铁柱,尚涛,等.Sr1-xLaxCo0.3Ti0.3Fe11.4O19铁氧体微波吸收特性的研究[J].功能材料与器件学报,2010,16(6):590-595.ZHANG Lei,DING Tie-zhu,SHANG Tao,et al.Study of microwave absorbing properties of Sr1-xLaxCo0.3Ti0.3Fe11.4O19ferrite[J].Journal of Functional Materials and Devices,2010,16(6):590-595.(in Chinese)
[30]王磊,朱保华.磁性吸波材料的研究进展及展望[J].电工材料,2011(2):37-40.WANG Lei,ZHU Bao-hua.Research progress and prospects of magnetic absorbing materials[J].Electrical Engineering Marerials,2011(2):37-40.(in Chinese)
[31]Wang Y X,Zhu X M,Liang Q,et al.In vivo chemoembolization and magnetic resonance imaging of liver tumors by using iron oxide nanoshell/doxorubicin/poly(vinylalcohol)hybrid composites[J].Angewandte Chemie,2014,53(19):4812-4815.
[32]Liu B H,Han M Y,Guan G J,et al.Highly-controllable molecular imprinting at superparamagnetic iron oxide nanoparticles for ultrafast enrichment and separation[J].Journal of the Physical Chemistry C,2011,115(35):17320-17327.
[33]Zheng T T,Zhang Q F,Feng S,et al.Robust nonenzymatic hybrid nanoelectrocatalysts for signal amplification toward ultrasensitive electrochemical cytosensing[J].Journal of the American Chemical Society,2014,136(6):2288-2291.
[34]陈汝芬,张云,赵建荣,等.可控粒径纳米Fe3O4的制备及其磁性研究[J].无机化学学报,2010,26(7):1207-1212.CHEN Ru-fen,ZHANG Yun,ZHAO Jian-rong,et al.Synthesis of variable-sized Fe3O4nanocrystals and their magnetic properties[J].Chinese Journal of Inorganic Chemistry,2010,26(7):1207-1212.(in Chinese)
[35]熊纲,杨绪杰,王晓慧,等.X型六角晶系钡铁氧体纳米晶的制备和表征[J].高等学校化学学报,1998,19(9):1467-1470.XIONG Gang,YANG Xu-jie,WANG Xiao-hui,et al.Synthesis and characterization of X-type barium ferrite nanocrystals[J].Chemical Journal of Chinese Universities,1998,19(9):1467-1470.(in Chinese)
[2]Hu Y,Meng L J,Niu L Y,et al.Highly cross-linked and biocompatible polyphosphazene-coated superparamagnetic Fe3O4nanoparticles for magnetic resonance imaging[J].Langmuir,2013,29(29):9156-9163.
[3]Cai H D,An X,Cui J,et al.Facile hydrothermal synthesis and surface functionalization of polyethyleneimine-coated iron oxide nanoparticles for biomedical applications[J].ACS Applied Materials&Interfaces,2013,5(5):1722-1731.
[4]Haerim L,Mi Kyung Y,Sangjin P,et al.Thermally cross-linked superparamagnetic iron oxide nanoparticles:synthesis and application as a dual imaging probe for cancer in vivo[J].Journal of the American Chemical Society,2007,129(42):12739-12745.
[5]Choi S H,Na H B,Park Y I,et al.Simple and generalized synthesis of oxide-metal heterostructured nanoparticles and their applications in multimodal biomedical probes[J].Journal of the American Chemical Society,2008,130(46):15573-15580.
[6]Sun S H,Zeng H.Size-controlled synthesis of magnetite nanoparticles[J].Journal of the American Chemical Society,2002,124(28):8204-8205.
[7]汪婷,高滢,金晓英,等.纳米四氧化三铁同步去除水中的Pb(Ⅱ)和Cr(Ⅲ)离子[J].环境工程学报,2013,7(9):3476-3482.WANG Ting,GAO Ying,JIN Xiao-ying,et al.Simultaneous removal of Pb(Ⅱ)and Cr(Ⅲ)from wastewater by magnetite nanoparticles[J].Chinese Journal of Environmental Engineering,2013,7(9):3476-3482.(in Chinese)
[8]Shao M F,Ning F Y,Zhao J W,et al.Preparation of Fe3O4@Si O2@layered double hydroxide core-shell microspheres for magnetic separation of proteins[J].Journal of the American Chemical Society,2012,134(2):1071-1077.
[9]陈曙,杨燚,史莹冰.磁性纤维对常规隐身材料的掺杂研究[J].航天电子对抗,2001,30(6):46-48.CHEN Shu,YANG Yi,SHI Ying-bing.Research on conventional stealth materials doped with magnetic fiber[J].Aerospace Electronic Warfare,2001,30(6):46-48.(in Chinese)
[10]Lin L S,Cong Z X,Cao J B,et al.Multifunctional Fe3O4@Polydopamine core-shell nanocomposites for intracellular mRNA detection and imaging-guided photothermal therapy[J].ACS Nano,2014,8(4):3876-3883.
[11]Michal B,Daniel H,Miroslava T,et al.Poly(l-lysine)-modified iron oxide nanoparticles for stem cell labeling[J].Bioconjugate Chemistry,2008,19(3):740-750.
[12]Liang C L,Zhai T,Wang W,et al.Fe3O4/reduced graphene oxide with enhanced electrochemical performances towards lithium storage[J].Journal of Materials Chemistry A,2014(2):7214-7220.
[13]姚爱华,李鹏飞,周田,等.用于检测重金属离子的磁性荧光复合微[J].无机化学学报,2014,30(2):303-309.YAO Ai-hua,LI Peng-fei,ZHOU Tian,et al.Magnetic fluorescence composite microspheres for detection of heavy metal ions[J].Chinese Journal of Inorgaing Chemistry,2014,2(30):303-309.(in Chinese)
[14]Wu Z S,Yang S B,Sun Yi,et al.3D nitrogen-doped grapheme aerogel-supported Fe3O4nanoparticles as efficient electrocatalysts for the oxygen reduction reaction[J].Journal of American Chemical Society,2012,134(22):9082-9085.
[15]Zhang Y X,Pan S S,Teng X M,et al.Bifunctional magneticluminescent nanocomposites:Y2O3/Tb nanorods on the surface of iron oxide/silica core-shell nanostructures[J].Journal of Physical Chemistry C,2008,112(26):9623-9626.
[16]程三旭,李克智,齐乐华,等.反向共沉淀法制备纳米Fe3O4及其粒径控制[J].材料研究学报,2011,25(5):489-494.CHENG San-xu,LI Ke-zhi,QI Le-hua,et al.Synthesis and size control of the nano-Fe3O4particles synthesized by a reverse coprecipitation method[J].Chinese Journal of Materials Research,2011,25(5):489-494.(in Chinese)
[17]Yu H,Chen M,Rice P M,et al.Dumbbell-like bifunctional Au-Fe3O4nanoparticles[J].Nano Lett,2005,5(2):379-382.
[18]Xu J,Yang H B,Fu W Y,et al.Preparation and magnetic properties of magnetite nanoparticles by sol-gel method[J].Journal of Magnetism and Magnetic Materials,2007,309(2):307-311.
[19]Oliveira F C,Effenberger F B,Sousa M H,et al.Ionic liquids as recycling solvents for the synthesis of magnetic nanoparticles[J].Physical Chemistry Chemical Physics,2011,13(30):13558-13564.
[20]Deng Y H,Qi D W,Deng C H,et al.Superparamagnetic highmagnetization microspheres with an Fe3O4@Si O2core and perpendicularly aligned mesoporous Si O2shell for removal of microcystins[J].Journal of the American Chemical Society,2008,130(1):28-29.
[21]Xi G C,Wang C,Wang X.The oriented self-assembly of magnetic Fe3O4nanoparticles into monodisperse microspheres and their use as substrates in the formation of Fe3O4nanorods[J].European Journal of Inorganic Chemistry,2008,2008(3):425-431.
[22]Xuan Shouhu,Wang Y X J,Yu J C,et al.Tuning the grain size and particle size of superparamagnetic Fe3O4microparticles[J].Chemistry of Materials,2009,21(21):5079-5087.
[23]Sugimoto T,Itoh H,Mochida T,et al.Shape control of monodisperse hematite particles by organicadditives in the gel-sol system[J].Journal of Colloid and Interface Science,1998,205(1):42-52.
[24]Jie G F,Yuan J X.Novel magnetic Fe3O4@Cd Se composite quantum dot-based electrochemiluminescence detection of thrombin by a multiple DNA cycle amplification strategy[J].Analytical Chemistry,2012,84(6):2811-2817.
[25]Jia Q,Zeng J,Qiao R,et al.Gelification:an effective measure for achieving differently Sized biocompatible Fe3O4nanocrystals through a single preparation recipe[J].Journal of the Americon Chemisal Society,2011,133(48):19512-19523.
[26]Mi C C,Zhang J P,Gao H Y,et al.Multifunctional nanocomposites of superparamagnetic(Fe3O4)and NIR-responsive rare earth-doped up-conversion fluorescent(Na YF4:Yb,Er)nanoparticles and their applications in biolabeling and fluorescent imaging of cancer cells[J].Nanoscale,2010,2(7):1141-1148.
[27]Li X Y,Huang X L,Liu D P,et al.Synthesis of 3D hierarchical Fe3O4/graphene composites with high lithium storage capacity and for controlled drug delivery[J].Journal of Physical Chemistry C,2011,115(44):21567-21573.
[28]朱涛,徐晓刚,王孝通,等.隐身涂料效果评估系统研究[J].兵工学报,2010,31(1):124-128.ZHU Tao,XU Xiao-gang,WANG Xiao-tong,et al.Research on effect evaluation system of stealth paint[J].Acta Armamentarii,2010,31(1):124-128.(in Chinese)
[29]张磊,丁铁柱,尚涛,等.Sr1-xLaxCo0.3Ti0.3Fe11.4O19铁氧体微波吸收特性的研究[J].功能材料与器件学报,2010,16(6):590-595.ZHANG Lei,DING Tie-zhu,SHANG Tao,et al.Study of microwave absorbing properties of Sr1-xLaxCo0.3Ti0.3Fe11.4O19ferrite[J].Journal of Functional Materials and Devices,2010,16(6):590-595.(in Chinese)
[30]王磊,朱保华.磁性吸波材料的研究进展及展望[J].电工材料,2011(2):37-40.WANG Lei,ZHU Bao-hua.Research progress and prospects of magnetic absorbing materials[J].Electrical Engineering Marerials,2011(2):37-40.(in Chinese)
[31]Wang Y X,Zhu X M,Liang Q,et al.In vivo chemoembolization and magnetic resonance imaging of liver tumors by using iron oxide nanoshell/doxorubicin/poly(vinylalcohol)hybrid composites[J].Angewandte Chemie,2014,53(19):4812-4815.
[32]Liu B H,Han M Y,Guan G J,et al.Highly-controllable molecular imprinting at superparamagnetic iron oxide nanoparticles for ultrafast enrichment and separation[J].Journal of the Physical Chemistry C,2011,115(35):17320-17327.
[33]Zheng T T,Zhang Q F,Feng S,et al.Robust nonenzymatic hybrid nanoelectrocatalysts for signal amplification toward ultrasensitive electrochemical cytosensing[J].Journal of the American Chemical Society,2014,136(6):2288-2291.
[34]陈汝芬,张云,赵建荣,等.可控粒径纳米Fe3O4的制备及其磁性研究[J].无机化学学报,2010,26(7):1207-1212.CHEN Ru-fen,ZHANG Yun,ZHAO Jian-rong,et al.Synthesis of variable-sized Fe3O4nanocrystals and their magnetic properties[J].Chinese Journal of Inorganic Chemistry,2010,26(7):1207-1212.(in Chinese)
[35]熊纲,杨绪杰,王晓慧,等.X型六角晶系钡铁氧体纳米晶的制备和表征[J].高等学校化学学报,1998,19(9):1467-1470.XIONG Gang,YANG Xu-jie,WANG Xiao-hui,et al.Synthesis and characterization of X-type barium ferrite nanocrystals[J].Chemical Journal of Chinese Universities,1998,19(9):1467-1470.(in Chinese)