人工晶体学报2011，Vol.40Issue(5)：1167-1173,7.
无催化剂高纯度纳米二氧化硅粉的制备
Preparation of Catalyst-free High Purity Nano-silica Powder
摘要
Abstract
High purity nano-silica sol was prepared using tetraethoxysilane ( TEOS) -water-alcohol system catalyzed with microwave irradiation, and then high purity nano-silica powder prepared using the silica sol by ultrasonic vibration and high temperature sintering furnace. Reaction of alkoxysilane generate to TEOS. A high purity free-catalyst silica sol was obtained in less than 30 min, and total metal impurities of silica sol are not more than 300 ×10-6 mg/L. Furthermore, the products were characterized using a transmission electron microscope, a scanning electron microscope, Energy Dispersive Spectrometer, X-ray diffraction, and an inductively coupled plasma mass spectrometer, Fourier Transform infrared spectroscopy, Zetasizer 3000HS and FT-Raman Spectrometer.关键词
微波辐照/超声波/高纯度/二氧化硅粉体Key words
microwave irradiation/ ultrasonic/ high purity/ silica-powder分类
化学化工引用本文复制引用
杨恺,安茂忠,杨春晖,张磊,胡成发,葛士彬..无催化剂高纯度纳米二氧化硅粉的制备[J].人工晶体学报,2011,40(5):1167-1173,7.基金项目
国家"十一五"科技部"863"科技支撑计划项目(2006BAE01B09) （2006BAE01B09）
