摘要
四氧三铁具有良好的化学稳定性和生物相容性以及优异的磁性能,在磁介质存储、传感器、微波吸收和生物医学等领域具有巨大的应用价值。以六水氯化铁(FeCl3·6H2O)作为铁源,乙二醇(C2H6O2)作为溶剂和还原剂,无水醋酸钠为配位剂,柠檬酸钠作为稳定剂,采用溶剂热法制备了高磁饱和强度的Fe3O4纳米簇颗粒。用X射线衍射仪(XRD)、场发射扫描电子显微镜(FESEM)、透射电子显微镜(TEM)和振动样品磁强计(VSM)对其物相、形貌和磁性能进行了表征。结果表明:纳米簇为均匀球形,由大量微小的Fe3O4纳米晶体组成。纳米簇的平均粒径为268nm,粒径分布较窄。其在室温条件下的磁滞回线表现出顺磁性,其饱和磁化率为65emu/g。
Magnetite(Fe3O4) nanoparticles were widely applied in information memory, signal sensor, microwave absorption and biomedicine due to their high chemical stability and excellent biocompatibility and magnetic responsibility. In this study, the Fe3O4 nanoclusters were synthesized using a solvothermal method with Fe Cl3·6H2O as iron precursor, ethylene glycol as solvent and reducing agent, anhydrous sodium acetate as ligand salt, and sodium citrate as stabilizing agent. The prepared Fe3O4 nano-clusters were characterized by X-ray powder diffraction(XRD), field emission scanning electron microscopy(FESEM), transmission electron microscopy(TEM) and vibrating sample magnetometer(VSM). The results showed that Fe3O4 nano-clusters are uniform spheres with 268 nm in diameter and the distribution of size is very narrow. They displayed a typical super paramagnetism at room temperature and the saturation magnetization intensity is 65 emu/g.
出处
《中国陶瓷》
CAS
CSCD
北大核心
2015年第3期11-14,共4页
China Ceramics
基金
国家自然科学基金(51262009)
江西省自然科学基金(20133ACB20002
20132BAB202002
20122BAB202001
201 42BAB206014)
江西省高等学校"先进陶瓷材料"科技创新项目
景德镇陶瓷学院研究生创新资金资助
关键词
溶剂热法
FE3O4
高磁饱和强度
纳米簇
Solvothermal method
Magnetite
Saturation magnetization intensity
Nanoclusters
