纳米级金红石型TiO₂放大试验

纳米级金红石型TiO 2 放大试验 Scale-Up Experimentof Nanosized Rutile TiO 2 Powder 钟家柽 ZHONG Jia- cheng 1 first-author 昝菱 ZAN Ling 1 罗其荣 LUO Qi- rong 1 武汉大学红外材料研究室,武汉,430072 武汉大学红外材料研究室,武汉,430072 IR Materials L aboratory,Wuhan U niversity,Wuhan 0 72 IR Materials L aboratory,Wuhan U niversity,Wuhan 0 72 以 H2 Ti O3为原料 ,经过 Ti O（NO3） 2 水解的放大实验 ,制备了金红石型 Ti O2 纳米粒子 ,通过 X射线衍射 （XRD）、透射电镜 （TEM）和比表面吸附 （BET） ,对纳米粒子的结构、形貌、粒径进行了分析和表征 .结果表明 ,粒子的平均粒径在 11nm左右 ,晶型为金红石型 ,粒子分布较松散 ,部分颗粒呈纤维状排列 . Nanometer rutile Ti O2 is a new kind of inorganic functional material.Its preparation and application have been paid more and more attention.Nanosized rutile Ti O2 was prepared by the hydrolysis of Ti O（ NO3 ） 2 with surfactant A in the scale up experiment.The monitoring of the characterization of the structure and morphology of the ultrafme partides were performed by the X- ray powderdiffraction（ XRD） , transmission electron microscope（ TEM） and BET specific surface area absorption metor.The result showed that the obtaired Ti O2 powers were rutile,the average size was about1 1 nm.TEM also showed that ultrafine titania particles appeared fibriform arrangementand displayed some active areas,butwith the grain size increasing,the activity of particles decreased and the fibriform arrangement disappeared accordingly. 纳米粉体 TiO2 金红石型 放大试验 nanocrystal Ti O2 rutile scale up experiment 10.14188/j.1671-8836.2000.05.019 O614 国家九·五攻关项目资助!（ 96-5 5 4-0 3 -0 1） 2000-05-01 2021-04-01 5