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The Scientific World Journal
Volume 2014, Article ID 349457, 7 pages
http://dx.doi.org/10.1155/2014/349457
Research Article

Microwave Synthesis, Characterization, and Photoluminescence Properties of Nanocrystalline Zirconia

1DRDO Center for Piezoceramics and Devices, ARDE, Pashan, Pune 411021, India
2Nanomaterials and Sensors Laboratory, Defence Institute of Advanced Technology (DU), Girinagar, Pune 411025, India

Received 30 August 2013; Accepted 24 October 2013; Published 21 January 2014

Academic Editors: P. Li, E. Poirier, and H. Yahiro

Copyright © 2014 A. K. Singh and Umesh T. Nakate. 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

We report synthesis of ZrO2 nanoparticles (NPs) using microwave assisted chemical method at 80°C temperature. Synthesized ZrO2 NPs were calcinated at 400°C under air atmosphere and characterized using FTIR, XRD, SEM, TEM, BET, and EDS for their formation, structure, morphology, size, and elemental composition. XRD results revealed the formation of mixed phase monoclinic and tetragonal ZrO2 phases having crystallite size of the order 8.8 nm from most intense XRD peak as obtained using Scherrer formula. Electron microscope analysis shows that the NPs were less than 10 nm and highly uniform in size having spherical morphology. BET surface area of ZrO2 NPs was found to be 65.85 m2/g with corresponding particle size of 16 nm. The band gap of synthesized NPs was found to be 2.49 eV and PL spectra of ZrO2 synthesized NPs showed strong peak at 414 nm, which corresponds to near band edge emission (UV emission) and a relatively weak peak at 475 and 562 nm.