Nanografi Nanotechnology

Titanium oxide  is the one of the top 50 chemicals which are produced in worldwide. It occurs in nature in three forms anatase, rutile and brookite. However, commonly, anatase and rutile forms have been used and studied. Naturally, it has whitish and opaque appearance, and through purification, it becomes whiter. Difference in crystal structure of these two forms as you can see in Figure 1 aroused interest in discrepancies between these forms, and many studies have been conducted. Figure 1: Crystalline structure of titanium dioxide anatase (a) and rutile (b) Ti and O atoms are represented in white and red respectively.                                                                                                P. Mazzolini, Functional Prop...