中文摘要：

以硝酸铋、硫酸钛和硝酸镧为原料,氢氧化钠为矿化剂,采用水热法制备了镧掺杂的钛酸铋片状纳米材料,研究了水热温度和水热时间对其结构的影响。采用XRD和SEM对产品的物相和结构进行了表征。结果表明：以硫酸钛作为无机钛源,在较低的水热温度（200℃）、水热时间为6 h时可以制备出花状的B i3.25La0.75Ti3O12纳米片。

英文摘要：

Bi3.25La0.75Ti3O12（BLT） nanoplates were synthesized by hydrothermal method using Bi（NO3）3 · 5H2O,Ti（SO4）2,La（NO3）3·nH2O as raw materials,NaOH as mineralizer.The effect of hydrothermal time and hydrothermal temperature on the phase and structure of samples were inverstigated by XRD and SEM.The results indicated that flowerlike nanoplate BLT could be synthesized under hydrothermal time of 6 h and hydrothermal temperature of 200 ℃.