本工作采用低温溶剂水浴热法,以葡萄糖、柠檬酸盐为辅助剂,首先制备了柠檬酸锌空心微球,然后在空气气氛中500℃煅烧制得ZnO空心微球.应用XRD、TG-DSC、SEM、TEM、IR对产物的组成、结构以及形貌进行了研究,研究发现该方法制备的前驱体为直径约为2 μm,壁厚约为200 nm的空心微球.由前驱体煅烧后得到的ZnO空心微球由粒径为20～30 nm的纳米粒子组装成,平均直径约为1μm,壁厚约为100 nm.此外还采用光致发光光谱仪(PL)对产物的光学性能进行了研究,结果表明ZnO空心微球在激发波长为325 nm的条件下具有较好的蓝光发光性能,发光峰位于469 nm处.
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