Growing ZnO crystals on magnetite nanoparticles

被引：24

作者：

Turgeman, R ^{[1
]}

Tirosh, S ^{[1
]}

Gedanken, A ^{[1
]}

机构：

[1] Bar Ilan Univ, Dept Chem, IL-52900 Ramat Gan, Israel

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2004年 / 10卷 / 07期

关键词：

crystal engineering; magnetite; nanostructures; zeta potential; zinc oxide;

D O I：

10.1002/chem.200306022

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report herein on the oriented growth of ZnO crystals on magnetite nanoparticles. The ZnO crystals were grown by hydrolyzing a supersaturated aqueous solution of zinc nitrate. The seeds for the growth were magnetite nanoparticles with a diameter of 5.7 nm and a narrow size distribution. Hollowed ZnO hexagons of 0.15 mum width and 0.5 mum length filled with Fe3O4 particles were obtained. HR-TEM (high-resolution transmission electron microscopy) and selected-area EDS (energy-dispersive spectroscopy) show that the nanoparticles are homogenously spread in the ZnO tubes. Zeta potential measurements were employed to understand the relationship between the nanoparticles and the oriented growth of the ZnO crystals. The results show that the surfactants induced the directional growth of the ZnO crystals.

引用

页码：1845 / 1850

页数：6

共 55 条

[41] SEMICONDUCTOR CLUSTERS IN THE SOL-GEL PROCESS - QUANTIZED AGGREGATION, GELATION, AND CRYSTAL-GROWTH IN CONCENTRATED ZNO COLLOIDS [J].