波谱学杂志2011，Vol.28Issue(4)：454-463,10.
TiO2及其掺Fe材料的制备和EPR谱的研究
Preparation and EPR Spectra of Titanium Dioxide and Fe-Doped Titanium Dioxide Materilals
摘要
Abstract
TiO2 and TiO2 doped with Fe were synthetized by the sol-gel method with tet-rabutyl titanate, absolute ethyl and alcoholglacial acetic acid as the raw materials at room temperature. Xerogel was collected after reaction for two days under room temperature and dried at 100 ℃. TiO2 and Fe-doper powder samples were prepared by heating the xerogel at 500 ℃. The sampels were analyzed by X-ray diffraction and EPR techniques. The results showed that all samples made in this way were anatase, and Fe had been doped into the crystal lattice of TiO2. With the increase of the dose of Fe doping, the signal intensity of Ti3+ oxidation center increased, and its peak moved towards the magnetic reducing direction. The signal intensity of Ti3+ oxidation center in Fe-doped 0. 1% of Fe-TiO2 samples also increased with temperatures, and its peak also moved towards the magnetic reducing direction. The results were explaned according to the theory of EPR and the reaction of TiO2 and O2.关键词
电子顺磁共振(EPR)/二氧化钛/溶胶-凝胶法Key words
EPR/ titanium dioxide/ sol-gel method分类
数理科学引用本文复制引用
神干,殷春浩,朱姗姗,李富强,侯磊田..TiO2及其掺Fe材料的制备和EPR谱的研究[J].波谱学杂志,2011,28(4):454-463,10.基金项目
国家教育部留学回国人员实验室建设科研基金资助项目(2003.18),中国矿业大学优秀创新团队基金资助项目(2004ZCX012). （2003.18）
