在微波等离子体中合成 ZnO 和 Zn 纳米粒子及其在玻片上的沉积。
Synthesis of ZnO and Zn nanoparticles in microwave plasma and their deposition on glass slides.
机构信息
Department of Chemistry and the Kanbar Laboratory for Nanomaterials at the Bar-Ilan University Center for Advanced Materials and Nanotechnology, Bar-Ilan University, Ramat-Gan 52900, Israel.
出版信息
Langmuir. 2010 Apr 20;26(8):5976-84. doi: 10.1021/la904499s.
This work represents a new method to synthesis of ZnO and/or Zn nanoparticles by means of microwave plasma whose electrons are the reducing agents. Glass quadratic slides sized 2.5 x 2.5 cm were coated by ZnO and/or Zn particles whose sizes ranged from a few micrometers to approximately 20 nm. The size of the particles can be controlled by the type of the precursor and its concentration. In the current paper, the mechanism of the reactions of ZnO and/or Zn formation was proposed. Longer plasma irradiation and lower precursor concentration favor the fabrication of metallic Zn nanoparticles. The nature of the precursor's ion (acetate, nitrate, or chloride) is also of importance in determining the composition of the product. The glass slides coated by ZnO and/or Zn nanoparticles were characterized by HR-SEM, HR-TEM, AFM, XRD, ESR, contact angle and diffuse reflectance spectroscopy (DRS).
这项工作代表了一种通过微波等离子体合成 ZnO 和/或 Zn 纳米粒子的新方法，其中电子是还原剂。大小为 2.5 x 2.5 厘米的玻璃方形载玻片被 ZnO 和/或 Zn 粒子覆盖，其尺寸范围从几微米到大约 20nm。粒子的大小可以通过前体的类型及其浓度来控制。在目前的论文中，提出了 ZnO 和/或 Zn 形成反应的机制。较长的等离子体辐照和较低的前体浓度有利于制备金属 Zn 纳米粒子。前体离子（醋酸盐、硝酸盐或氯化物）的性质对于确定产物的组成也很重要。涂有 ZnO 和/或 Zn 纳米粒子的玻璃载玻片通过高分辨率扫描电子显微镜、高分辨率透射电子显微镜、原子力显微镜、X 射线衍射、电子顺磁共振、接触角和漫反射光谱（DRS）进行了表征。
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