Optical and magnetic characterizations of zinc substituted copper ferrite synthesized by a co-precipitation chemical method
作者:Talaat M. Hammad、Jamil K. Salem、Ayman Abu Amsha、Nasser K. Hejazy
DOI:10.1016/j.jallcom.2018.01.123
日期:2018.4
Abstract Nano-sized Cu1-xZnxFe2O4(x = 0.0, 0.2, 0.4, 0.6, 0.8 and 1) ferrites were synthesized by a co-precipitation chemical method. The structural, morphological, optical and magnetic properties of the products were determined and characterized in detail by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), transmission scanning electron microscopy (TEM), energy dispersive
摘要 采用共沉淀化学法合成了纳米Cu1-xZnxFe2O4(x = 0.0, 0.2, 0.4, 0.6, 0.8 and 1)铁氧体。通过X射线衍射(XRD)、傅里叶变换红外光谱(FT-IR)、透射扫描电子显微镜(TEM)、能量色散X射线等对产物的结构、形貌、光学和磁学性质进行了详细的测定和表征。光谱(EDX)和超导量子干涉仪(SQUID)。X 射线分析表明,所有组合物均以立方尖晶石型结构结晶,平均晶粒尺寸在 11-13 nm 范围内。随着 Zn 含量的增加,晶格参数从 8.331 增加到 8.400 A。通过紫外-可见光谱和光致发光(PL)光谱研究了纳米铁氧体的光学性质。UV-vis 吸收光谱表明,随着粒径的增加,Zn 掺杂的铁氧体铜的能带隙 (Eg) 从 3.64 eV 降低到 3.10 eV。在整个 PL 光谱中观察到宽的可见光发射带。Cu1-xZnxFe2O4 纳米铁氧体在室温 (RT)