原位掺杂Al/Si纳米TiO_(2)粉体的制备及其光催化性能  

Preparation and Photocatalyticity Properties of in-Situ Al/Si-Doped Nano-TiO_2

作　　者：潘飞[1] 张玉梅[1] 庄毅[1] 王彪[1] 王华平[1] 

机构地区：[1]东华大学纤维材料改性国家重点实验室,上海200051

出　　处：《纳米技术与精密工程》2005年第3期173-176,共4页Nanotechnology and Precision Engineering

基　　金：中国石油化工股份有限公司资助

摘　　要：纳米二氧化钛是一种重要的无机功能材料.以化学沉淀法制备了纳米TiO2以及Al/Si原位掺杂纳米TiO2 粉体,利用透射电镜(TEM)、差热式扫描量热仪(DSC)、X射线衍射仪(XRD)以及X光电子能谱仪(XPS)对粉体粒子的形貌、大小、物相和组成进行了分析.采用浸渍提拉法制成均匀致密的膜,以光催化降解亚甲基蓝溶液为模型反应,研究了无机掺杂元素对其光催化性能的影响.研究结果表明,Al/Si掺杂TiO2的分散性得到了提高,并增强了其光催化活性。Nanometer TiO2 is a new kind of inorganic functional material, The nanometer TiO2 and in-situ Al/ Si-doped TiO2 powder were prepared in this paper by chemical precipitation method, Properties of the samples were characterized by means of TEM ,DSC ,XRD and XPS technique, The uniform and compact films were fabricated by dip-draw process, The photocatalyticity degradation of methylene blue liquor was used as a model reaction to investigate the influence of doped-element on the photocatalytic properties of TiO2 powder. It is indicated that the dispersity and photocatalyticity of Al/Si-doped TiO2 increased.

关 键 词：纳米二氧化钛 光催化 原位掺杂 

分 类 号：O643.3[理学—物理化学]