The synthesis of flower-like morphology of ZnO nanorods labelled as 'ZnO flowerets' via a novel approach comprising of dealloying of mechanically alloyed powder particles of Cu-Zn of mean size 2.9 ± 0.6 μm is reported in the present work. The mechanical alloying of the powder blend was performed in a planetary ball mill. Subsequently, the dealloying was performed in a basic solution of NaOH. The optimization of type of basic solution, pH of the solution, dose of alloy powder and time of dealloying was performed to find the best possible process parameters for dealloying. The ZnO flowerets were characterized by X-ray diffraction (XRD) and field emission electron microscope (FE-SEM) attached with energy dispersive spectrophotometer (EDS). The aspect ratio of ZnO nanorods and the EDS atomic ratio of Zn/Cu in the ZnO flowerets were measured to be ∼ 11 (length = ∼520 nm and width = 48 nm) and ∼ 1.2, respectively. The results of inductively coupled plasma mass spectroscopy (ICP-MS) showed the concentration of Cu and Zn ions to be 25 and 1200 ppm, respectively, in NaOH solution after experimentation for 24 h. It also indicated the predominant dissolution of Zn relative to Cu from the alloyed powder.

在本工作中报道了通过一种新颖的方法合成标记为“ ZnO小花”的ZnO纳米棒的花状形态的方法，该方法包括将机械合金化的平均尺寸为2.9±0.6μm的Cu-Zn粉末颗粒脱合金。粉末共混物的机械合金化是在行星式球磨机中进行的。随后，在NaOH的碱性溶液中进行脱合金。对碱性溶液的类型，溶液的pH值，合金粉末的剂量和脱合金时间进行了优化，以找到最佳的脱合金工艺参数。通过X射线衍射（XRD）和附有能量色散分光光度计（EDS）的场发射电子显微镜（FE-SEM）对ZnO小花进行了表征。ZnO小花中ZnO纳米棒的长径比和Zn / Cu的EDS原子比分别为〜11（长= 520 nm和宽= 48 nm）和〜1.2。电感耦合等离子体质谱法（ICP-MS）的结果显示，在实验24小时后，NaOH溶液中Cu和Zn离子的浓度分别为25和1200 ppm。这也表明锌相对于铜从合金粉末中主要溶解。