Abstract
Zirconium oxide or zirconia is a valuable material for many applications. It is more encouraging when its particle size reduced to nanometre range. In the present paper, zircon mineral is recovered from beach placer deposits of Brahmagiri coastline of Puri District, Odisha, India, using different unit operations such as spiral concentrator, wet high-intensity magnetic separator, flotation cell and high-tension separator. Then, its value addition is done by preparation of zirconia nanoparticles through chemical route and the nano-material is also characterised. Characterisation of zirconia includes XRD, SEM/TEM, Raman spectra, etc. The photocatalytic activity of zirconia is also studied using methylene blue. It is found that zirconia behaves in an excellent way in methylene blue decolourisation and follows the first-order kinetics.
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