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Effects of annealing temperature on microstructural, optical and FTIR properties of NiFe2O4 spinel nanoparticles.
- Source :
-
Chemical Physics Letters . Dec2023, Vol. 833, pN.PAG-N.PAG. 1p. - Publication Year :
- 2023
-
Abstract
- [Display omitted] • The NiFe 2 O 4 nanoparticles are prepared in different annealing temperature using the facile hydrothermal method. • The microstructure parameters are determined by XRD and SEM images. • The BET and BJH analysis are used to determine the specific surface areas and the pore size distribution. • The optical band gaps of samples are investigated. • Correlation between optical, FTIR properties and microstructure parameters is studied. In this study, NiFe 2 O 4 spinel nanoparticles were prepared using the hydrothermal method and annealed at different temperatures of 550, 650, 750, and 850 °C. The crystallite size increased from 19.0 to 28.6 nm and the dislocation density decreased from 7.2 × 10 14 to 5.3 × 10 14 m - 2 . Also, the Fourier-transform infrared (FTIR) shifted absorption bands, ν 1 (594 to 616 cm−1) and ν 2 (400 to 422 cm−1), were observed. The FTIR-shifted absorbance bands have a good correlation with lattice microstructure parameters. Finally, the obtained results can provide useful information about the synthesis of spinel nanoparticles sensitive to lattice defects, using changes in physical properties. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00092614
- Volume :
- 833
- Database :
- Academic Search Index
- Journal :
- Chemical Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 173852635
- Full Text :
- https://doi.org/10.1016/j.cplett.2023.140911