ZnO nanoparticles 经由降水热分解(P&P ) 被综合,在先锋氢氧化锌焦化的地方(Zn_5 (CO_3 )_2 (哦)_6 ) 被获得然后 pyrolyzed。TEM 的 Theresults 显示热分解温度是为控制 nanoparticles 的吝啬的尺寸的占优势的因素,从 8 跑到 80 nm。增加热分解温度提高吝啬的尺寸。XRD 的结果证明 nanoparticles 都具有水晶的红锌矿。TEM 观察的吝啬的尺寸与从比表面区域(SSA ) 和从 XRD 模式计算的水晶的尺寸计算了那一致,显示主要粒子在尺寸是相当一致的并且有单个晶体。沿着为从范围改变到像杆的形状,然后到网状的 ZnO 的形态学负责的 C-axisare 的取向附生的生长行为。与另外的合成途径相比, P&P 能与相对低的费用得到相当好的产品。
ZnO nanoparticles were synthesized via precipitation-pyrolysis (P&P), where the precursor zinc hydroxide carbonate (Zn5(CO3)2(OH)6) was obtained and then pyrolyzed. The results of TEM indicate that pyrolysis temperature is the predominant factor for controlling mean sizes of nanoparticles, ranging from 8 nm to 80 nm. Increasing the pyrolysis temperature enhances the mean size. The results of XRD show that nanoparticles are all of crystalline zincite. The mean size observed by TEM is in agreement with that calculated from the specific surface area(SSA) and the crystalline size calculated from the XRD patterns, indicating that the primary particles are rather uniform in size and have single crystals. The growth behaviors of epitaxy along the C-axis are responsible for the morphology of ZnO changing from sphere to rod-like shape, and then to reticulation. Compared with other synthesis approaches, P&P can get fairly good product with a relatively low cost.