原位制备碳负载纳米TiO2的研究  

Study on preparation of C/TiO2 composites by in-situ polymerization

作　　者：张玲[1] 姚日生[1] 邓胜松[1] 

机构地区：[1]合肥工业大学化工学院,安徽合肥230009

出　　处：《功能材料》2007年第A07期2450-2452,共3页Journal of Functional Materials

摘　　要：首先采用聚合法制备右旋糖苷基钛酸酯Dex-OTi，然后再通过热解右旋糖苷基钛酸酯中的葡聚糖制备碳负载型纳米TiO2。利用DSC、FTIR、XRD及TEM等手段对其热稳定性、结构、晶型以及粒子大小等进行了分析和表征。通过FTIR分析可得目标产物中含有锐钛矿型TiO2，由TEM可看出TiO2纳米粒子大小均一，尺寸范围为100nm以内。Dextran moiety titanate （Dex-OTi） was prepared by in-situ polymerization, then C surface covered with TiO2 was got by heat-treated Dex-OTi. The as-prepared composites were characterized with regard to their components, structure, size and crystal phases by FTIR, DSC and XRD. The result of FTIR shows that the final product is contained anatase titanium dioxide, and the average nanometer size of TiO2 grains of composites is in the scope of 100nm with transmission electron microscope（TEM）.

关 键 词：右旋糖苷基钛酸酯 钛酸四丁酯TNB 原位聚合法 碳负载型纳米TiO2 

分 类 号：TQ134.1[化学工程—无机化工]