物理化学学报 >> 2015, Vol. 31 >> Issue (11): 2213-2219.doi: 10.3866/PKU.WHXB201509301

材料物理化学 上一篇    下一篇

一维有序ZnO纳米棒阵列的制备和优化

马娟1,宋凤丹1,周泽齐2,齐随涛1,*(),伊春海1,杨伯伦1   

  1. 1 西安交通大学化学工程与技术学院,西安710049
    2 天津大学化工学院,天津300072
  • 收稿日期:2015-06-11 发布日期:2015-11-13
  • 通讯作者: 齐随涛 E-mail:suitaoqi@mail.xjtu.edu.cn
  • 基金资助:
    陕西省自然科学基金研究计划重点项目(2015JZ004);多相流国家重点实验室课题项目

Preparation and Optimization of Vertically Arrayed Zinc Oxide Nanorods

Juan. MA1,Feng-Dan. SONG1,Ze-Qi. ZHOU2,Sui-Tao. QI1,*(),Chun-Hai. YI1,Bo-Lun. YANG1   

  1. 1 School of Chemistry Engineering and Technology, Xi'an Jiaotong University, Xi'an 710049, P. R. China
    2 School of Chemical Engineering, Tianjin University, Tianjin 300072, P. R. China
  • Received:2015-06-11 Published:2015-11-13
  • Contact: Sui-Tao. QI E-mail:suitaoqi@mail.xjtu.edu.cn
  • Supported by:
    the Natural Science Foundation of Shaanxi Province, China(2015JZ004);Project of State Key Laboratory ofMultiphase Flow in Power Engineering, China

摘要:

以氧化铟锡透明导电膜玻璃(ITO)做载体,先在室温下采用浸渍-提拉法制备出ZnO纳米晶作为种子层,再结合低成本的水热生长法合成了一维有序的ZnO纳米棒阵列.结合X射线衍射(XRD)、扫描电子显微镜(SEM)和能量色散谱仪(EDS)表征,研究了前驱液浓度、溶胶陈化时间、种子层提拉次数、水热生长时间和次数等5种因素对ZnO纳米棒的结构及形貌的影响.研究结果表明, ZnO纳米棒阵列的长度和直径会随着前驱液的浓度和溶胶陈化时间以及水热生长时间的延长而增加.当前驱液浓度为0.5 mol·L-1时,陈化时间为24 h,浸渍-提拉3次,水热反应3次,每次反应时间为150 min时,可得到一维有序的ZnO纳米棒阵列.

关键词: ZnO纳米棒, 浸渍-提拉法, 水热反应, 陈化时间, 空间取向

Abstract:

A two-step method for growing vertical zinc oxide nanorod arrays on indium tin oxide (ITO)-coated glass substrates is proposed. First, a zinc oxide seed layer was formed on the ITO substrate by simple dipcoating combined with the Czochralski method, and then vertical zinc oxide nanorod arrays were obtained by a hydrothermal method. The nanorod arrays were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM) and energydispersive X-ray spectroscopy (EDS). The effects of the precursor concentration, sol-aging time, hydrothermal reaction time, and cycle times of the dip-coating and hydrothermal reaction on the structure and surface morphology of the zinc oxide nanorod arrays were investigated. The results show that the length and diameter of zinc oxide nanorod arrays increased with the increasing precursor concentrations, sol-aging time, and hydrothermal reaction time. Good vertical zinc oxide nanorod arrays were obtained under the optional growth conditions, i.e., three hydrothermal reactions for 150 min, three rounds of dip-coating, 0.5 mol·L-1 precursor solution concentration, and 24 h aging.

Key words: Zinc oxide nanorod array, Dip-coating and czochralski, Hydrothermal reaction, Aging time, Orientation

MSC2000: 

  • O649