以硝酸锌和氢氧化钠为原料,通过微波水热法制备了ZnO纳米粉体.采用X射线衍射、透射电镜、激光粒度分析、比表面测试等手段对微波水热产物进行表征,并探讨了溶液体系pH值、反应温度、反应时间对微波水热反应所得ZnO粉体性能的影响.结果表明,微波水热反应体系的pH值、反应温度对所制备粉体的粒度分布有重要影响.制备ZnO纳米粉体的最佳反应条件为:溶液体系pH值为5,反应温度为130℃,反应时间为10min,在此工艺条件下制备的ZnO粉体比表面积为18.53m2/g,平均粒度约为61nm,粒径分布狭窄,结晶完整.
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