Abstract
Hydroxyapatie (HAP: Ca10(PO4)6(OH)2) can adsorb harmful organic materials such as bacteria, while titanium oxide (TiO2) is one of excellent photocatalyst. In order to realize highly efficient adsorption/decomposition properties, HAP/TiO2 composite was prepared in this paper. Needle-like hydroxyapatite with high specific surface area and high crystallinity was successfully synthesized by the precipitation method using an autoclave and a microwave irradiation. The synthesized HAP showed more excellent adsorption ability to humic acid than commercial HAP. Besides, the HAP /TiO2(p-25) composite achieved high specific surface area and good decomposition property for humic acid.
