化学溶液分解法合成亚稳相硅酸铋(Bi_2SiO_5)粉体  

Preparation of Bi_2SiO_5 Metastable Phase Powders by Chemical Solution Decomposition Method

作　　者：许雅琴[1] 王秀峰[1] 江红涛[1] 鲁俊雀[1] 

机构地区：[1]陕西科技大学材料科学与工程学院,西安710021

出　　处：《人工晶体学报》2011年第6期1541-1546,1556,共7页Journal of Synthetic Crystals

基　　金：国家自然科学基金(50972087)资助项目;陕西省自然科技基金(2009JM6008;2010JK434;2010JQ6006;2010JQ6009)资助项目;教育部轻化工助剂重点实验室资助

摘　　要：本文以正硅酸乙酯和五水硝酸铋为原料,按nBi∶nSi为1∶2配比,搅拌超声后形成溶胶-凝胶,干燥后在650℃下煅烧2 h,可得到物相纯净的Bi2SiO5粉体。该粉体为鳞片状150～250 nm左右的微晶。通过XRD、SEM、IR对产物的结构和形貌进行分析,研究了反应过程的影响因素及其形成的机理,并通过PL分析其光学性能。In this paper, the pure scale-like Bi2SiO5 was prepared by bismuth nitrate pentahydrate and TEOS as raw materials, according to nsi： rtsi is 1 ： 2, formed sol-gel after ultrasonic mixing, dried, then calcined at 650℃ for 2 h. The size of sheet particle is distributed from 150 nm to 250 nm. The phasecomposition and morphological characteristics of Bi2SiO5 particles were characterized by X-ray diffraction, scanning electron microscopy and infrared scattering spectroscopy, analysis the factors of affecting the reaction process and formation mechanism. And its optical performance was analyzed by a fluorescence spectrophotometer.

关 键 词：Bi2SiO5 化学溶液分解法 鳞片状结构 

分 类 号：TB383.3[一般工业技术—材料科学与工程]