Structure ve specification analysis of nano titanium di oxide doped with boron oxide

Titanium dioxide (TiO2) is one of the most researched semiconductor oxides that has revolutionised Technologies in the field of enviromental purification and energy generation. It has found extensive applications in heterogenous photocatalysis for removing organic pollutants from air and water and also in hydrogen production from photocatalytic water-spliting. Its use popular because of its low cost, low toxicity, high chemical and thermal stability. But one of the critical limitations of TiO2 as photocatalyst is its poor response to visible light. Several attempts have been made to modify the surface and electronic structures of TiO2 to enhance its activity in the visible light region such as noble metal depositions, metal ion loading, cationic and anionic doping and sensitisation. Most of the results improved photocatalytic performance under visible light irradiation. The overall goal was an in-depth study of an adaptation of the surface sol-gel process as a nanometer-precise method to prepare nanostructured titanium oxides for photocatalytic, electrocatalytic and bio-medical applications. With the increase of heat ,because of loss water Boric Acid(H3BO3) is transformed to Boron Oxide (B2O3) in phase diagram that was proven . Reason of this transformation ,Titanium di Oxcide doped by two different form first Boric Acid (H3BO3), second Boron Oxide (B2O3) form.In this thesis it will be presented common point and different point for two form.