一种制备单晶碘化铅纳米带及其束状结构的简易水热合成路线。

A facile hydrothermal synthesis route to single-crystalline lead iodide nanobelts and nanobelt bundles.

作者信息

Ma Dekun, Zhang Wu, Zhang Rui, Zhang Meng, Xi Guangcheng, Qian Yitai

机构信息

Structure Research laboratory and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China.

出版信息

J Nanosci Nanotechnol. 2005 May;5(5):810-3. doi: 10.1166/jnn.2005.142.

DOI:10.1166/jnn.2005.142

PMID:16010944

Abstract

Single-crystalline PbI2 nanobelt bundles have been prepared using lead monoxide powder and hydroiodic acid as reagents at the assistance of dodecylamine. The assembled PbI2 nanobelt bundles can be spilt into nanobelts through long-playing sonication. The prepared nanobelt bundles consist of several nanobelts and the nanobelts have lengths of tens of microns, widths of 50-150 nanometers, and thicknesses ca. 20 nanometers. X-Ray diffraction (XRD), scanning electron microscopy (SEM), field emission scanning electron microscopy (FE-SEM) transmission electron microscopy (TEM), electronic diffraction (ED), and high-resolution transmission microscopy (HRTEM) was used to characterize the as-prepared product. The possible formation mechanism of PbI2 nanobelt bundles was tentatively proposed.

摘要

以一氧化铅粉末和氢碘酸为试剂，在十二胺的辅助下制备了单晶PbI₂纳米带束。通过长时间超声处理，组装好的PbI₂纳米带束可以分裂成纳米带。所制备的纳米带束由几条纳米带组成，这些纳米带的长度为几十微米，宽度为50 - 150纳米，厚度约为20纳米。采用X射线衍射（XRD）、扫描电子显微镜（SEM）、场发射扫描电子显微镜（FE - SEM）、透射电子显微镜（TEM）、电子衍射（ED）和高分辨率透射显微镜（HRTEM）对所制备的产物进行了表征。初步提出了PbI₂纳米带束可能的形成机制。