Title of article :
A simple method to fabricate the different extents of superhydrophobic surfaces
Author/Authors :
Jun Wu، نويسنده , , Jun Xia، نويسنده , , Yuning Zhang، نويسنده , , Wei Lei، نويسنده , , Bao-ping Wang، نويسنده ,
Issue Information :
ماهنامه با شماره پیاپی سال 2009
Pages :
4
From page :
1325
To page :
1328
Abstract :
Superhydrophobic surface is obtained by combining micro- and nano-scale ZnO nanowires and hydrophobic Teflon material in our recent experiment. We adopt an alkaline hydrothermal method to fabricate a series of ZnO nanowires surfaces with different roughness, which is realized by carefully controlling Zn-AD concentration. The resulted surfaces all exhibit superhydrophilic traits, where a contact angle below 10° for a 3 μL water droplet sits on these surfaces. The obtained superhydrophilicity comes from the combination of high surface energy of ZnO film and high surface roughness, which is in line with Wenzel’s model. Superhydrophobic surface is achieved after spin-coating Teflon. The excellent superhydrophobicity is attributed to the synergistic effect of high roughness and the low surface energy, which is explained by the Cassie model. The Zn-AD concentration of 0.1 M is essential to fabricate the superhydrophobic surfaces.
Keywords :
ZnO , Superhydrophilicity , Nanowires , Superhydrophobicity
Journal title :
Physica E Low-dimensional Systems and Nanostructures
Serial Year :
2009
Journal title :
Physica E Low-dimensional Systems and Nanostructures
Record number :
1048174
Link To Document :
بازگشت