通过简单的溶液法控制ZnO纳米结构的形状和尺寸

Shape and size control of ZnO nanostructures via a simple solution route.

作者信息

Cao Minhua, Guo Caixin, Qi Yanjuan, Hu Changwen, Wang Enbo

机构信息

Institute of Polyoxometalate Chemistry, Northeast Normal University, Changchun, People's Republic of China, 130024.

出版信息

J Nanosci Nanotechnol. 2004 Sep;4(7):829-32. doi: 10.1166/jnn.2004.094.

DOI:10.1166/jnn.2004.094

PMID:15570967

Abstract

ZnO nanostructures with different morphologies were synthesized by condensing the Zn(OH)4(2-) precursors under hydrothermal conditions in the presence of a surfactant, cetyltrimethylammonium bromide (CTAB). Shape and size control of ZnO nanostructures was achieved by relatively simple variations of molar ratio of CTAB to Zn(OH)4(2-). With a higher molar ratio, ZnO nanotubes were obtained, whereas with a lower molar ratio, ZnO nanorods were formed; furthermore, with a moderate w value, the coexistence of ZnO nanorods and nanotubes was also observed. The photoluminescence of ZnO nanorods and nanotubes was also investigated.

摘要

在表面活性剂十六烷基三甲基溴化铵（CTAB）存在的水热条件下，通过缩合Zn(OH)₄²⁻前体合成了具有不同形态的ZnO纳米结构。通过相对简单地改变CTAB与Zn(OH)₄²⁻的摩尔比，实现了ZnO纳米结构的形状和尺寸控制。摩尔比越高，得到的是ZnO纳米管；而摩尔比越低，则形成ZnO纳米棒；此外，当w值适中时，还观察到ZnO纳米棒和纳米管共存的情况。同时还研究了ZnO纳米棒和纳米管的光致发光特性。