期刊
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
卷 421, 期 -, 页码 113-119出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jmmm.2016.07.068
关键词
Cobalt ferrite; Combustion; Co-precipitation; Bismuth; Nanoparticles; 4-nitrophenol
资金
- VIT university
- VIT-RGEMS
In this study, cobalt ferrite and bismuth substituted cobalt ferrite (CoFe(2-x)Bi(x)O(4)x=0, 0.1) nanoparticles were synthesized by two different methods viz combustion and co-precipitation. The nanoparticles were characterized by powder X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), diffuse reflectance spectroscopy (DRS), scanning electron microscopy-energy dispersive X-ray analyzer (SEM-EDX) and vibrating sample magnetometer (VSM). The results of powder XRD pattern showed an increase in lattice parameter and decrease in particle size of cobalt ferrite by the substitution of bismuth. Catalytic activity of cobalt ferrite and bismuth substituted cobalt ferrite nanoparticles synthesized by two different methods were compared for the reduction of 4-nitrophenol to 4-aminophenol using NaBH4 as a reducing agent. (C) 2016 Elsevier B.V. All rights reserved.
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