MultifunctionalTiO2 -appatite nano-composites and its application for photo catalytic discoloration of Rhodamine-B

Thought this study a multifunctional composite material with a titanium dioxide surface covered by apatite for application in air and Water purification has developed. This composite has a function to absorb and decompose bacteria and various other hazardous materials. TiO2 (P25) powder was soaked in a pseudo- body solution for 2 days at 37oC. This composite material has the following characteristics: (1) the apatite adsorbs materials even without exposure to light; (2) materials adsorbed by the apatite are decomposed by the titanium dioxide photocatalyst on exposure to light; (3) the apatite is used as a spacer, allowing blending of the material with resins, organic coatings, and other organic materials; (4) though the photocatalyst requires a fixed interval to decompose organic materials, capture of materials by the apatite ensures decomposition. The absorbent and photo catalytic properties of the TiO2 and apatite formation on nano crystalline TiO2 were characterized by study the absorption and decolonization of Rhodamine-B. Rhodamine-B, one of the most important dyes of the xanthenes group, has been used to characterize the photo catalytic activity of the specimen.