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New Innovative stable Titania Nanopowder
Indian researchers have prepared stable Titania (TiO2) nanopowder
Titanium dioxide (TiO2) or titania, is the oxide of titanium and occurs naturally in anatase, brookite & rutile forms. Anatase phase is considered for various applications which is the most wanted material. But rutile phase is the most abundantly available in nature. It still remains a challenge to keep anatase phase stable from easy transformation to rutile.
In this study, we have made an attempt to prepare tetragonal pure anatase phase TiO2nanoparticles in a simple way without any additives. Since, no anychemical components used during the preparation of nanoparticles, we believe that the product isbiocompatible and bio-safe and can be readily used for food and medicinal industries. Besides, the present method is economical, fast, room temperature, free of pollution, environmentally benign and suitable for large scale production. The estimated particle size of the sample is 74nm. It is well expected that this synthesis technique would be extended to prepare many other important metal oxide nanostructures.
The researchers further comment on this issue that dislocation density increases while particle size decreases. It implies that the prepared TiO2 nanoparticles have more strength and hardness than their bulk (TiO2) counterpart.