Structural Characterization and Magnetic Properties of Undoped and Ti-Doped ZnO Nanoparticles Prepared by Modified Oxalate Route

Ti-doped zinc oxide and pure zinc oxide nanoparticles were synthesized by a modified oxalate route using Averrhoa carambola fruit juice as a natural source of oxalate. The characteristics of the precursors have been investigated by FTIR, TGA, and XRD. The results from the investigation revealed that...

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Bibliographic Details
Published in:Journal of nanomaterials 2018-01, Vol.2018 (2018), p.1-9
Main Authors: Yollande, Fomogne Cyrille, Namond, Beckley Victorine, Lambi, John Ngolui, Foba, Josepha, Etape, Ekane Peter, Nguimezong, Marius Borel Nguefack
Format: Article
Language:English
Subjects:
Chemistry
Chloride
Debye-Scherrer method
Decomposition
Ferromagnetism
Fourier transforms
Hysteresis loops
Ligands
Magnetic properties
Metal oxides
Methods
Morphology
Nanomaterials
Nanoparticles
Particle size
Precursors
Semiconductors
Structural analysis
Titanium
Wurtzite
Zinc oxide
Zinc oxides
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Summary:Ti-doped zinc oxide and pure zinc oxide nanoparticles were synthesized by a modified oxalate route using Averrhoa carambola fruit juice as a natural source of oxalate. The characteristics of the precursors have been investigated by FTIR, TGA, and XRD. The results from the investigation revealed that the precursors are zinc oxalate and Ti-doped zinc oxalate which readily decompose at 450°C. The as-prepared precursors were calcined at 450°C for 4 hours, and the decomposition products have been characterized by XRD, SEM, EDX, and VSM. XRD results revealed crystallinity with hexagonal wurtzite structure, while the average grain size was found to be 26 nm for Ti-doped ZnO and 29 nm for ZnO, using calculations based on Debye-Scherrer equation. Furthermore, the morphological studies by SEM showed particle agglomeration, while the presence of Ti3+ in the zinc oxide lattice is indicated by EDS analysis. Finally the hysteresis loop from VSM results shows that Ti-doped ZnO exhibits ferromagnetism.
ISSN:1687-4110
1687-4129
DOI:10.1155/2018/9072325