中文摘要：

三维(3D ) 象花的锐钛矿 TiO2 nanostructures 和象花的 titanate nanostructures 成功地经由列在后面由的热水的合成被综合从钛处理以后粉末。象花的锐钛矿 TiO2 nanostructures 与扫描电子详细被描绘显微镜学(SEM ) ， X 光检查衍射(XRD ) ，紫外力的光谱和氮吸附解吸附作用测量分别地。象花的 TiO2 nanostructures 有一个高特定的表面区域和大轻收获的效率，这被发现。象花的锐钛矿 TiO2 nanostructures 的 photocatalytical 活动被甲又蓝色的降级在水的答案决定，并且与商业 P25 titania 相比。象花的锐钛矿 TiO2 nanostructures 的 photocatalytical 活动非常被提高，这被揭示。象花的锐钛矿 TiO2 nanostructures 的明显的率常数是乘 P25 titania 的的几乎 2。

英文摘要：

Three-dimensional（3D）flower-like anatase TiO2 nanostructures and flower-like titanate nanostructures were successfully synthesized via hydrothermal synthesis followed by post-treatment from titanium powder.The flower-like anatase TiO2 nanostructures were characterized in detail with scanning electron microscopy（SEM）,X-ray diffraction（XRD）,UV-vis spectrum and nitrogen adsorption-desorption measurement,respectively.It is found that the flower-like TiO2 nanostructures have a high specific surface area and a large light-harvesting efficiency.The photocatalytical activity of the flower-like anatase TiO2 nanostructures was determined by degradation of methylene blue in aqueous solution,and was compared with commercial P25 titania.It is revealed that the photocatalytical activity of the flower-like anatase TiO2 nanostructures is enhanced a lot.The apparent rate constant of the flower-like anatase TiO2 nanostructures is almost 2 times that of P25 titania.