Effect of pH and Temperature on Physical Properties of Zinc Aluminate Based Nanostructure Synthesized via Co-Precipitation Method

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Zinc aluminate (ZnAl2O4) nanopowders were synthesized by co-precipitation method using zinc chloride and aluminum chloride as starting precursors. The crucial preparation factors including pH and calcination temperature were varied and their influence on relevant physical properties of the product is investigated. Structural properties of as-synthesized nanoparticles were investigated by X-ray diffraction, scanning electron microscope and Raman spectroscopy. XRD results suggested that ZnAl2O4 in spinel structure with high crystallinity could be obtained by this process after calcination beyond specific temperature. Meanwhile, SEM images revealed that surface morphologies and structure of ZnAl2O4 were in spherical structure with average size of few hundred nanometer range at high pH condition. Raman result indicated the correlated chemical bonding relating to the formation of ZnAl2O4 structure.

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53-59

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May 2015

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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