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以Zn(Ac)2.2H2O、Fe(NO3)3.9H2O和NaOH为原料,采用水热法合成了纳米ZnO-Fe2O3复合材料。并用x射线衍射和扫描电子显微镜测试技术对ZnO-Fe2O3纳米粒子的结构和形貌进行了表征。ZnO-Fe2O3粒子基本为球形,粒径30~40nm;利用UV-3310紫外-可见分光光度计测试了样品的光吸收性能,并探讨了不同的反应温度、时间及不同物料配比等因素对光吸收强弱的影响。结果表明:当Fe∶Zn=1∶1(摩尔比),pH=7,180℃下反应5h得到的纳米复合材料光吸收性能最好。
Nanometer ZnO-Fe2O3 composite was synthesized by hydrothermal method using Zn (Ac) 2.2H2O, Fe (NO3) 3.9H2O and NaOH as raw materials. The structure and morphology of ZnO-Fe2O3 nanoparticles were characterized by X-ray diffraction and scanning electron microscopy. The particle size of ZnO-Fe2O3 was about 30-40 nm. The UV absorption of the sample was tested by UV-3310 UV-Vis spectrophotometer. The effects of different reaction temperature, time and ratio of different materials on the light Absorption of the impact of strength. The results show that the nanocomposites obtained when Fe: Zn = 1: 1 (molar ratio), pH = 7 and reaction at 580 ℃ for 5h have the best optical absorption.