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Journal of Nanomaterials
Volume 2018, Article ID 9072325, 9 pages
https://doi.org/10.1155/2018/9072325
Research Article

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

1Department of Chemistry, Faculty of Science, University of Buea, P.O. Box 63, Buea, Cameroon
2Department of Chemistry, ENS Yaoundé, BP 47, Yaoundé, Cameroon

Correspondence should be addressed to Ekane Peter Etape; rf.oohay@10022002enake

Received 31 October 2017; Revised 14 January 2018; Accepted 6 February 2018; Published 22 March 2018

Academic Editor: Jean M. Greneche

Copyright © 2018 Ekane Peter Etape et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

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.