摘要
对金红石型纳米二氧化钛进行水热处理,利用X射线衍射和透射电镜对水热处理前后的纳米二氧化钛进行了表征。研究了pH值、水热反应温度和水热反应时间对金红石型纳米二氧化钛形貌和晶粒尺寸的影响。结果表明:随着pH值的增加,纳米二氧化钛粒子的生长速度减慢。随着水热反应温度的升高和水热反应时间的延长,纳米的晶粒尺寸和原始粒径逐渐变大。水热条件对纳米二氧化钛形貌的影响不大。
The nanoscale futile TiO2 is treated by a hydrothermal process. The samples before and after treatment were characterized by XRD and TEM. The effects of pH value, hydrothermal temperature and time on the morphology and crystalline size of nanoscale rutile TiO2 were discussed. The results showed that the growth rate of TiO2 particle slowed down as pH value is increased. With increasing hydrothermal temperature and time, the crystallite size of rutile TiO2 increased accordingly. The effects of hydrothermal conditions on the morphology of nanosized - titanium dioxide were slight.
出处
《涂料工业》
CAS
CSCD
2006年第12期31-34,共4页
Paint & Coatings Industry
关键词
纳米二氧化钛
金红石
水热处理
粒径
晶粒尺寸
nanoscale TiO2
rutile
hydrothermal treatment
particle size
crystalline size
