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| 单分散Fe_3O_4亚微米球的合成与表征 | |
| 引用本文： | 路 苹,张吉林,孙德慧,刘桂霞,洪广言,倪嘉缵.单分散Fe_3O_4亚微米球的合成与表征[J].无机化学学报,2010,26(7):1177-1182. |
| 作者姓名： | 路 苹 张吉林 孙德慧 刘桂霞 洪广言 倪嘉缵 |
| 作者单位： | 1. 长春理工大学化学与环境工程学院,长春,130022 2. 中国科学院长春应用化学研究所稀土资源利用国家重点实验室,长春,130022 3. 长春工程学院,长春,130021 4. 中国科学院长春应用化学研究所稀土资源利用国家重点实验室,长春,130022;深圳大学生命科学学院,深圳,518060 |
| 基金项目： | 国家自然科学基金，吉林省科技发展计划基金，吉林省教育部基金，中国科学院长春应用化学研究所创新计划基金的支持 |
| 摘 要： | 采用溶剂热法制备出具有尺寸可调、分散性好、亲水性和超顺磁性的亚微米Fe3O4磁球,并考察了不同表面活性剂、反应时间和反应温度的影响。分别采用XRD、FE-SEM、FTIR、超导量子干涉仪(SQUID)对其结构、形貌、表面性质及磁性进行了表征。结果表明,产物为立方结构、具有单分散性的Fe3O4亚微米球,粒径在140~360nm可调。所得Fe3O4亚微米球在室温条件下的磁滞回线表现出超顺磁性,矫顽力为零。不同表面活性剂对粒径大小和磁饱和强度有一定的影响,但对其形貌和晶相结构无影响。随着反应时间的延长和反应温度的提高,颗粒粒径有逐渐减小的趋势。 |
| 关 键 词： | 单分散性 亲水性 超顺磁性 Fe3O4微球 |
Preparation and Characterization of Monodispersed Fe3O4 Sub-microspheres |
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| LU Ping,ZHANG Ji-Lin,SUN De-Hui,LIU Gui-Xi,HONG Guang-Yan and NI Jia-Zuan.Preparation and Characterization of Monodispersed Fe3O4 Sub-microspheres[J].Chinese Journal of Inorganic Chemistry,2010,26(7):1177-1182. | |
| Authors: | LU Ping ZHANG Ji-Lin SUN De-Hui LIU Gui-Xi HONG Guang-Yan and NI Jia-Zuan |
| Institution: | School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022,State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022,Changchun Institute of Technology, Changchun 130021,School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022,State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022 and State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022; College of Life Science, Shenzhen University, Shenzhen, Guangdong 518060 |
| Abstract: | Size-controllable, better dispersed, hydrophilic and superparamagnetic submicron Fe3O4 spheres were perpared by a solvothermal method. Effects of surfactants, reaction time and reaction temperature on the product were examined. XRD, FTIR, FE-SEM, and superconducting quantum interface device(SQUID) were employed to characterize the Fe3O4 microspheres. The results show that Fe3O4 microshperes have a cubic structure and better dispersibility, the sizes of Fe3O4 microshperes can be controlled at 140~360 nm, the samples are superparamagnetic at room temperature and the coercivity is negligible. The surfactants have an influence on the size and saturation magnetization of the samples but have no effect on the crystalline phase structure and morphologies. With the increasing of reaction time and temperature, the size of the samples decreases. |
| Keywords: | monodispersity hydrophilicity superparamagnetism Fe3O4 microspheres |
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