兴奋剂
材料科学
拉曼光谱
尖晶石
镍
铬铁矿
纳米颗粒
光致发光
柠檬酸
带隙
化学工程
无机化学
核化学
分析化学(期刊)
纳米技术
冶金
化学
有机化学
光学
物理
工程类
光电子学
作者
Malika Rani,Kiran Batool,Ayesha Younus,Ajmal Shah,Arshad Mehmood,Rubia Shafique,Shamim Khan,G. Murtaza,R. Neffati
标识
DOI:10.1080/09500839.2021.1979269
摘要
Nanoparticles of nickel-doped iron chromite (Fe1-xNixCr2O4) with composition x = 0.2-0.8 have been prepared by the sol–gel method using citric acid as a complexing agent. X-ray diffraction (XRD) results show that the synthesised doped nanoparticles are crystalline. Temperature and concentrations are key variables that influence nanopowder properties. To obtain fine powders, the doped samples were sintered at 750°C for 4 h. Doping was confirmed by XRD patterns. Raman spectra confirmed the existence of both parent and doped compounds. The band gap for the undoped sample is about 4.01 eV which, on doping, decreases to 3.7 eV as determined from photoluminescence spectra. The results suggest that synthesised nanoparticles of Fe1-xNixCr2O4 can be used for versatile future applications such as energy storage and photocatalytic activity.
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