TY - JOUR
T1 - Properties of super-hydrophobic copper and stainless steel meshes
T2 - Applications in controllable water permeation and organic solvents/water separation
AU - Sang, Yu Chen
AU - Albadarin, Ahmad B.
AU - Al-Muhtaseb, Ala'A H.
AU - Mangwandi, Chirangano
AU - McCracken, John N.
AU - Bell, Steven E.J.
AU - Walker, Gavin M.
N1 - Publisher Copyright:
© 2015 Elsevier B.V. All rights reserved.
PY - 2015/4/30
Y1 - 2015/4/30
N2 - The wettability and hydrophobicity of super-hydrophobic (SH) meshes is greatly influenced by their topographic structures, chemical composition and coating process. In this study, the properties of copper and stainless steel meshes, coated with super-hydrophobic electrolessly deposited silver were investigated. A new method to test the pressure resistance of super-hydrophobic mesh was applied to avoid any deformation of mesh. Results showed that SH copper mesh and SH stainless steel meshes with the same pore size have almost the same contact angle and the same hydrophobicity. SH copper mesh with a pore size of 122 μm can resist water pressure of 4900 Pa and a decrease of pore size of mesh can increase the pressure resistance of SH copper mesh. The SH copper mesh modified with 0.1 M HS(CH 2 ) 10 COOH solution in ethanol has a controllable water permeation property by simply adjusting the pH of water solution. SH copper mesh shows super-oleophilicity with organic solvents and so with a water contact angle of 0° and it can be an effective tool for organic solvents/water separation. The separation efficiency of SH copper mesh for separating mixtures of organic solvent and water can be as high as 99.8%.
AB - The wettability and hydrophobicity of super-hydrophobic (SH) meshes is greatly influenced by their topographic structures, chemical composition and coating process. In this study, the properties of copper and stainless steel meshes, coated with super-hydrophobic electrolessly deposited silver were investigated. A new method to test the pressure resistance of super-hydrophobic mesh was applied to avoid any deformation of mesh. Results showed that SH copper mesh and SH stainless steel meshes with the same pore size have almost the same contact angle and the same hydrophobicity. SH copper mesh with a pore size of 122 μm can resist water pressure of 4900 Pa and a decrease of pore size of mesh can increase the pressure resistance of SH copper mesh. The SH copper mesh modified with 0.1 M HS(CH 2 ) 10 COOH solution in ethanol has a controllable water permeation property by simply adjusting the pH of water solution. SH copper mesh shows super-oleophilicity with organic solvents and so with a water contact angle of 0° and it can be an effective tool for organic solvents/water separation. The separation efficiency of SH copper mesh for separating mixtures of organic solvent and water can be as high as 99.8%.
KW - Contact angle
KW - Morphology
KW - Organic solvents/water separation
KW - Pressure resistance
KW - Super-hydrophobic copper mesh
KW - pH-controllable water permeation
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U2 - 10.1016/j.apsusc.2015.02.034
DO - 10.1016/j.apsusc.2015.02.034
M3 - Article
AN - SCOPUS:84930480328
SN - 0169-4332
VL - 335
SP - 107
EP - 114
JO - Applied Surface Science
JF - Applied Surface Science
ER -