【摘要】 以氢氧化钠和六水合硝酸锌为反应物,在未使用任何表面活性剂的简单反应体系中制得了玫瑰花状ZnO纳米结构,采用X射线衍射(XRD)、扫描电子显微镜(SEM)和室温荧光光谱对产物的晶体结构、形貌和发光性质进行了表征和分析。测试结果表明,所得产物为六方纤锌矿结构ZnO纳米材料,产物结晶完整,尺寸较均匀。这种简单水热法制备的ZnO纳米材料仅在384nm处具有一个较强的紫外发光峰,而在黄绿区几乎没有发光峰,进一步证明了所得样品结晶良好,没有缺陷和空位。以上结果表明所制备的氧化锌纳米材料具有优异的紫外光发射能力。更多还原

【Abstract】 Flower-like ZnO nanostructures were successfully synthesized by employing Zn（NO₃）·6H₂O and NaOH as the starting materials without using any surfactant.The phase structure,morphology and optical properties of the product were characterized by X-ray diffraction （XRD ）,scanning electron microscope（SEM ） and room-temperature photoluminescence（PL ） spectrum.SEM results show that the sampes mainly consist of flower-like nanostructures.The results demonstrate that the ZnO nanostructures prepared by this simple hydrothermal method have only a strong emission peak at 384nm,without any emission peaks in the visible range.These results indicate that the prepared ZnO have excellent UV emission capacity.更多还原