Superhydrophobic zinc oxide surface by differential etching and hydrophobic modification

被引：70

作者：

Hou, Xianming

Zhou, Feng

Yu, Bo

Liu, Weimin ^{[1
]}

机构：

[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2007年 / 452卷

基金：

中国国家自然科学基金;

关键词：

ZnO; superhydrophobic surface; differential etching; ODT;

D O I：

10.1016/j.msea.2006.11.057

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A superhydrophobic ZnO nanorod films on zinc substrate were fabricated by natural oxidation of zinc metal and subsequent modification with a monolayer of n-octadecyl thiol (ODT). The surface morphology and composition were studied using SEM, XRD, and XPS, respectively. The surface of ZnO films directly grown on zinc substrate was hydrophilic with a water contact angle (CA) of 40 +/- 2 degrees, whereas the modified ZnO films by ODT exhibited the superhydrophobicity and the water CA on it was 153 +/- 2 degrees. It is shown that both the higher surface roughness and the lower surface free energy play an important role in creating the superhydrophobic surface. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：732 / 736

页数：5

共 41 条

[1] Electrochemical synthesis of nanostructured ZnO films utilizing self-assembly of surfactant molecules at solid-liquid interfaces [J].