【摘要】 本文以TiCl3为原料,采用水热法,在150℃下很方便地制备出了纯金红石型二氧化钛纤维。对样品进行的粉末X射线衍射(XRD),扫描电子显微镜(SEM),高分辨透射电子显微镜(HRTEM)表征显示,该纤维由纳米棒自组装而成,纤维的长度约为1~2mm,直径约为15μm,分散性良好。紫外可见光(UV-vis)吸收谱图显示该样品的能隙能量Eg=3.0eV,降解RhB实验表明该样品在可见光下的催化能力优于商用P25。更多还原

【Abstract】 A convenient hydrothermal method has been developed to synthesize rutile TiO₂ microfibers by employing TiCl₃ at 150℃.X-ray powder diffraction（XRD）,scanning electron microscopy（SEM） and high resolution transmission electron microscopy（HRTEM） investigations reveal that the microfibers are self-assembled by TiO₂ nanorods and well-dispersed.The average length of the microfibers is 1²mm and the average diameter is 15μm.The bandgap E_g of microfibers is about 3.0eV by UV-vis adsorption spectrum and the degradation of RhB indicates that its photocatalytic activities are better than P25’s.更多还原