Fe^(3+)、Co^(2+)、Ni^(2+)掺杂TiO_2纳米粉体的微波水热合成研究  

The hydrothermal synthesis in terms of microwave of the TiO_2 nanometer powder mixed with Fe^(3+),Co^(2+)and Ni^(2+)

作　　者：周晓明[1] 张培新[1] 刘剑洪[1] 李静[1] 陈玉辉[1] 

机构地区：[1]深圳大学师范学院化生系,深圳518060

出　　处：《深圳大学学报（理工版）》2004年第3期257-261,共5页Journal of Shenzhen University(Science and Engineering)

基　　金：深圳市科技局资助项目(200219)

摘　　要：通过控制盐的水解和微波辐射,制备出晶粒为6～30nm的TiO2和Fe3+、Co2+、Ni2+掺杂的TiO2.对水解温度、陈化时间进行研究发现,TiO2、Fe/TiO2及Co/TiO2和Ni/TiO2的水解温度分别控制在70～80℃、65℃及60～80℃时,晶粒尺寸较小,而室温陈化时间的长短对晶粒尺寸无大的影响.通过XRD、TG DSC、TEM对制得的纳米粉体进行了表征.Nano- TiO_2, and nano-TiO_2 powder mixed with Fe^(3+),Co^(2+)and Ni^(2+), with the crystallite size of 6～30nm were prepared by controlling the salt-hydrolysis and microwave radiation. The results indicated that the crystallite with small size could be obtained at the hydrolytic temperature of 70 to 80℃ for TiO_2, 65℃ for Fe/TiO_2, and 60 to 80℃ for Co/TiO_2 and Ni/ TiO_2. The effect of ageing time at room temperature on the crystallite size was negligible. The nanometer powders were characterized by XRD, TG-DSC and TEM.

关 键 词：微波辐射 TIO2 掺杂 水解温度 表征 

分 类 号：TQ314.242[化学工程—高聚物工业]