Abstract: To study the preparation technology and property of TiO₂ nano-particles doped with Fe³⁺, the quantity of Fe³⁺, acetic acid, nitric acid and calcination temperature were chosen to design the orthogonal experiment. TiO₂ nano-particles doped with Fe³⁺ were prepared by sol-gel method. Raman speetra，XRD，TEM were used to characterize the samples. The results indicate that comparing with pure TiO₂ nano-particles prepared by sol-gel method, X ray diffraction peak intensity of TiO₂ nano-particles doped with Fe³⁺ decreases and the crystalline size decreases. Raman spectra has blue-shifting and broadening. Degradation rate of methyl orange solution show that the photocatalytic activity of TiO₂ nano-particles doped with Fe³⁺ significantly increases.

Keywords：TiO₂ nano-particle; doping; sol-gel method; photocatalytic

中图分类号：TB383，TQ134.1⁺1 文献标志码：A

文章编号：1008-5548（2014）02-0061-04

DOI:10.13732/j.issn.1008-5548.2014.02.014

收稿日期：2013-07-28， 修回日期：2013-08-08，在线出版时间：2014-05-04。

基金项目：青海省科技厅应用基础研究项目，编号：2013-Z-703。

第一作者简介：薛彩红（1982—），女，硕士，讲师，研究方向为超细粉体材料制备技术及新材料。电话：0971-5363128，E-mail：xuech@126.com。