Wettability control and water droplet dynamics on SiC-SiO2 core-shell nanowires

We present a simple method for fabricating superhydrophobic SiC-SiO(2) core-shell nanowire surfaces via the facile dip-coating of alkyltrichlorosilanes. Water droplets displayed a variety of shapes with varying surface energies on the nanowire surfaces, which could be modified through chemisorption...

Ausführliche Beschreibung

Bibliographische Detailangaben
Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1985. - 26(2010), 14 vom: 20. Juli, Seite 12273-7
1. Verfasser: Kwak, Geunjae (VerfasserIn)
Weitere Verfasser: Lee, Mikyung, Senthil, Karuppanan, Yong, Kijung
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2010
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Carbon Compounds, Inorganic Silicon Compounds Water 059QF0KO0R Silicon Dioxide 7631-86-9 silicon carbide WXQ6E537EW
Beschreibung
Zusammenfassung:We present a simple method for fabricating superhydrophobic SiC-SiO(2) core-shell nanowire surfaces via the facile dip-coating of alkyltrichlorosilanes. Water droplets displayed a variety of shapes with varying surface energies on the nanowire surfaces, which could be modified through chemisorption of alkyltrichlorosilanes with variable carbon chain length. The effects of UV irradiation on the superhydrophobic nanowire arrays were also investigated. UV light efficiently decomposed the chemisorbed molecules, and the superhydrophobic surface gradually converted into a hydrophilic surface with increasing UV exposure. The water droplet impact behavior on the modified surfaces was studied to test the stability of the superhydrophobicity under dynamic conditions
Beschreibung:Date Completed 01.12.2010
Date Revised 21.11.2013
published: Print
Citation Status MEDLINE
ISSN:1520-5827
DOI:10.1021/la101234p