稳定纳米二氧化钛水溶胶的制备研究

采用胶溶法制备稳定的纳米二氧化钛水溶胶，研究了pH值、肢体浓度、胶溶剂的浓度及制备温度对胶溶效果的影响。用激光粒度仪测定了其水溶胶纳米体系粒度分布，用SEM电镜：分析观察陶瓷镀膜表面形貌，用EDX能谱分析测定了其微观成分。研究结果显示．在T=313K-353K、pH=1．2—2．0、胶涔浓度0．05—0．3mol／L之间、胶溶剂硝酸和盐酸浓度分别为5％和3％的条件下制备的溶胶较分散稳定。

STUDY ON THE PREPARATION OF STEADY NANO-TiO2 WATER-SOL

Steady TiO2 water-sol was prepared by peptization process The effect of pH value, concentration of colloid, concentration of peptizator and temperature on sol result was studied Laser grain analyzer was used to verify that it was Nano-system; the microstructure of TiO2 film was observed by SEM and its content was mensurated by EDX. By optimizing the preparation process, the TiO2water-sol prepared at T=313K-353K, pH=1.2-2.0,Csic=0.05-0.3mol/L,Cpeptzatcr of HNC3=5% or Cpeptzater of HCI=3% would be more steady.