二氧化钛/碳纳米管复合纳米材料的制备和表征  

Preparation and Characterization of the Composite Nano-material of Titanium Dioxide/Carbon Nanotubes(TiO_2/CNT)

作　　者：冬连红[1] 丁克强[1] 曹萌[1] 

机构地区：[1]河北师范大学化学与材料科学学院,河北石家庄050016

出　　处：《河北师范大学学报（自然科学版）》2008年第3期367-369,共3页Journal of Hebei Normal University：Natural Science

基　　金：河北师范大学博士基金(130301);河北省人事厅回国留学人员择优资助项目(106115);河北省教育厅重点项目(140302)

摘　　要：采用溶胶-凝胶法,以钛酸四丁酯为前驱体,分别制备了二氧化钛/碳纳米管(TiO2/CNT)复合纳米膜电极和TiO2/CNT复合纳米粉体材料.利用UV-Vis,EIS等方法对复合纳米膜电极进行了表征,利用SEM对TiO2/CNT复合纳米粉体材料进行了观察,并测定了该材料对甲基橙光降解的催化活性.结果表明,复合TiO2/CNT纳米材料比单独TiO2纳米材料具有更高的化学活性.Composite nano TiO2/CNT thin films modified on a electrode and the composite nano-material of TiO2/CNT were successfully prepared with Sol-Gel method, in which Ti （OC4H9）4 was used as a precursor. NanoTiO2/CNT thin films were characterized by ultraviolet-visible spectrophotometry（UV-Vis）, electrochemical impedance spectroscopy （EIS） techniques. Lastly, the composite nano-material of TiO2/CNT was observed by using scanning electron microscopy （SEM）, also, the photo-degradation of methyl orange was carried out on this nano-material of TiO2/CNT, and the results show that the nano-material of TiO2/CNT has a higher activity than the pure nano TiO2 particles.

关 键 词：溶胶-凝胶法 二氧化钛 碳纳米管 复合纳米材料 光催化降解 

分 类 号：O646[理学—物理化学]