以钛酸丁酯为原料,采用溶胶凝胶法合成了纯TiO2与Nd掺杂TiO2纳米粉体,对其进行了350℃至850℃的热处理.利用XRD、SEM、和EDS对粉体的晶型结构,微观形貌和元素成分进行表征,研究了Nd掺杂对TiO2晶粒尺寸以及晶型转变的影响.结果表明:样品晶粒尺寸达到纳米级别,Nd掺杂后TiO2晶粒尺寸减小.纯TiO2在550℃时已经有金红石生成,750℃完成锐钛矿向金红石的转变;Nd掺杂TiO2在750℃时仍然是锐钛矿,850℃时有少许金红石生成,Nd掺杂提高了TiO2锐钛矿结构的热稳定性.
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