pH值对水热法制备ZnGa2O4粉体的影响

功能材料与器件学报 , 2006, 12(5): 456-460. doi: 10.3969/j.issn.1007-4252.2006.05.020

pH值对水热法制备ZnGa2O4粉体的影响

李朝建 ^1, , 黄可龙 ^2, , 全玉 ^3, , 张学英 ^4, , 赵学辉 ^5,

1.中南大学化学化工学院功能材料化学研究所,长沙,410083

2.中南大学化学化工学院功能材料化学研究所,长沙,410083

3.中国铝业河南分公司研究所,郑州,450041

4.中国铝业河南分公司研究所,郑州,450041

5.中南大学化学化工学院功能材料化学研究所,长沙,410083

基金项目: 湖南省自然科学基金(02JJY3032)

关键词： pH值 , ZnGa2O4 , 水热合成 , 纳米

Effect of pH value on ZnGa2O4 nanoparticles prepared under hydrothermal route

采用水热法制备了ZnGa2O4纳米粉体,使用XRD、SEM、TEM及AFM对不同pH值条件下产物的结构及微观形貌进行了表征.结果表明pH值调节严重影响ZnGa2O4的晶相及粒度:当pH≥7.5时,可得到纯相的ZnGa2O4纳米粉体;随着pH的增加,晶胞参数增加,所得样品的平均粒径不断减小,其粒径范围为6～11nm,发射峰位置在450nm左右.所得样品的晶型很完整,GaO(OH)为细长棒状,ZnGa2O4晶粒为四方形和圆形.

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pH值对水热法制备ZnGa2O4粉体的影响

Effect of pH value on ZnGa2O4 nanoparticles prepared under hydrothermal route

参考文献