硅酸盐学报2011，Vol.39Issue(5)：743-747,5.
钌掺杂二氧化钛纳米粉体的制备及光催化性能
Preparation and Photocatalytic Performance of Ruthenium Doped Titania Nanopowder
摘要
Abstract
A ruthenium (Ru) doped titania (TiO2) nanopowder was prepared with tetrabutyl titanate [Ti(OBu)4]as a raw material by a sol-gel method. The as-prepared nanopowder was characterized by the techniques such as thermogravimetric,-differential thermal analysis, X-ray diffractomcter, X-ray photoelectronic spectroscope, and nitraviolet-visible spectrophotometer. Results show that the phase transformation fi.om anatase to rutile is retarded via doping Ru. It is found that most of Ru elements doped presents in the form of Ru4+, which is the place of Ti4+ in the lattice of TiO2, forming a new phase of Ti1-xRuxO2. The light response of TiO2 nanopowder could be expanded to the visible region.Photocatalytie activities of the Ru doped TiO2 nanopowder and effect of the doped Ru content on the activity were analyzed by the result of photocatalytic degradation of phenol in water solution under artificial sunlight. Superior photocatalytic activity for the TiO2 nanopowder sample doped with Ru of 3％ in mass could be obtained among all the prepared samples.关键词
氧化钛/纳米粉体/钌/溶胶-凝胶方法/改性/光催化降解/苯酚Key words
titania/ nanopowders/ ruthenium/ sol-gel method/ modification/ photocatalytic degradation/ phenol分类
化学引用本文复制引用
焦斌权,徐朝鹏,孙晓君,蔡伟民,王恩福,纪红月..钌掺杂二氧化钛纳米粉体的制备及光催化性能[J].硅酸盐学报,2011,39(5):743-747,5.基金项目
重庆市自然科学基金(2008BB7053)资助项目. （2008BB7053）
