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

Averrhoa carambola fruit juice was used as a natural source of oxalate in the preparation of ti-doped zinc oxide and pure zinc oxide nanoparticles via a modified oxalate route. FTIR, TGA, and XRD were used to investigate the properties of the precursors. The investigation revealed that the precursors are zinc oxalate and Ti-doped zinc oxalate, which readily decompose at room temperature. 450°C. The as-prepared precursors were calcined for 4 hours at 450°C, and the decomposition products were characterized using XRD, SEM, EDX, and VSM. Using the Debye-Scherrer equation, XRD results revealed crystallinity with hexagonal wurtzite structure, and the average grain size was found to be 26 nm for Ti-doped ZnO and 29 nm for ZnO. Furthermore, SEM morphological studies revealed particle agglomeration, while EDS analysis revealed the presence of Ti3+ in the zinc oxide lattice. Finally, the hysteresis loop from the VSM results demonstrates that Tidoped ZnO is ferromagnetic. The expected metal oxalates were identified as the precursors, and the decomposition products were pure ferromagnetic nanoparticles.

Author (s) Details

Ekane Peter Etape
Department of Chemistry, Faculty of Science, University of Buea, P.O.Box 63, Buea, Cameroon

Josepha Foba-Tendo
Department of Chemistry, Faculty of Science, University of Buea, P.O.Box 63, Buea, Cameroon.

Lambi John Ngolui
Department of Chemistry, ENS Yaound´e, BP 47, Yaound´e, Cameroon.

Beckley Victorine Namondo
Department of Chemistry, Faculty of Science, University of Buea, P.O.Box 63, Buea, Cameroon.

Fomogne Cyrille Yollande
Department of Chemistry, Faculty of Science, University of Buea, P.O.Box 63, Buea, Cameroon.

Marius Borel Nguefack Nguimezong
Department of Chemistry, Faculty of Science, University of Buea, P.O.Box 63, Buea, Cameroon.

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