固相反应法制备纳米α-Fe_2O_3的研究

Study on the preparation of nanocrystalline α-Fe_2O_3

以晶状硝酸铁、8-羟基喹啉为原料,采用固相反应法合成前驱配合物,前驱配合物分别在500℃、600℃热分解得到产物纳米α-Fe2O3。通过用721型分光光度计、红外光谱、X射线粉末衍射、透射电镜等测试手段对前驱物和产物进行了表征。结果表明固相反应法制备的前驱物Fe(Oxine)3(s)的吸收光谱和红外光谱与对照样Fe(Oxine)3(l)的完全一致,纳米α-Fe2O3的平均粒径分别为50 nm和60 nm左右。

Row complex was prepared by solid state reaction method using Fe（NO3 ）3 · 9H2O and 8-hydroxyquinoline as row materials. Nanocrystalline α-Fe2O3 was obtained by heating row complex at 500 ℃ and 600 ℃. Row complex and α-Fe203 was characterized by the techniques such as 721-Spectrophotometer, IR,XRD and TEM. Results show that the absorption spectroscopy and IR of row complex Fe（Oxine）3 （s）prepared by solid state reaction is simlar to the compared Fe（Oxine）3 （1）. The average particle size of nanocrystalline α-Fe2O3 is about 50 nm and 60 nm respectively.