| 高纯纳米氧化钛的制备及催化活性 |
| |
| 引用本文： | 李裕,刘有智,董秀芳.高纯纳米氧化钛的制备及催化活性[J].化学研究与应用,2007,19(6):594-597. |
| |
| 作者姓名： | 李裕 刘有智 董秀芳 |
| |
| 作者单位： | 1. 太原理工大学化学化工学院,山西,太原,030051;中北大学化工与环境学院,山西,太原,030051
2. 中北大学化工与环境学院,山西,太原,030051 |
| |
| 基金项目： | 国家自然科学基金资助项目(20576128)，山西自然基金资助项目(20051015) |
| |
| 摘 要： | 以工业级硫酸钛为原料,在酸性环境下以EDTA作为络合剂,采用控制沉淀法制备高纯度纳米TiO2。考察了pH值、反应温度、煅烧温度等工艺条件对TiO2颗粒晶型、大小和分布影响。利用TEM、XRD、ICP等手段对产物进行表征,TiO2纯度超过99.9%,粒径为10-20nm,分布均匀。经过对其光催化降解苯酚反应活性实验,结果表明样品具有较好的光催化活性。
|
| 关 键 词： | 纳米二氧化钛 制备 络合 高纯度 |
| 文章编号： | 1004-1656（2007）06-0594-04 |
| 收稿时间： | 2006-03-08 |
| 修稿时间： | 2006-03-082006-10-12 |
Preparation of high pure TiO2 nanoparticles and photocatalytic activity |
| |
| LI Yu,LIU You-zhi,DONG Xiu-fang.Preparation of high pure TiO2 nanoparticles and photocatalytic activity[J].Chemical Research and Application,2007,19(6):594-597. |
| |
| Authors: | LI Yu LIU You-zhi DONG Xiu-fang |
| |
| Institution: | 1. Department of Chemical Engineering, North University of China, Taiyuan 030051, China; 2. Institute of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan 030051, China |
| |
| Abstract: | TiO2 nanoparticles were prepared in acid condition using industrial titanium sulfate in presence of EDTA as complexing agent.The effects of final pH value and calcined temperature on particle size and yield were investigated.The obtained powders were characterized by X-ray diffraction(XRD),transmission electron microscope(TEM) and ICP plasma spectrometer.EDTA was helpful for improvement of purity and in the formation of TiO2 nanoparticles.The purity of TiO2 nanoparticles obtained was higher than 99.9%,and its mean size was 20nm nearly monodispersed.Its photocatalytic activity for phenol degradation was investigated.The results indicated that a high pure mixture obtained of anatase and rutile had higher photocatalytic activity. |
| |
| Keywords: | nanometer titanium dioxide preparation complex high pure |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
