Fabrication of CuZn 5-ZnO-CuO micro-nano binary superhydrophobic surfaces of Cassie-Baxter and Gecko model on zinc substrates

Xiaofeng Shi; Shixiang Lu; Wenguo Xu

doi:10.1016/j.matchemphys.2012.03.046

Fabrication of CuZn ₅-ZnO-CuO micro-nano binary superhydrophobic surfaces of Cassie-Baxter and Gecko model on zinc substrates

Xiaofeng Shi, Shixiang Lu^*, Wenguo Xu

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

Superhydrophobic surfaces were prepared via immersing the clean perpendicular zinc substrates into aqueous copper chloride (CuCl ₂) solution and followed by annealing in dry air. Two Superhydrophobic models were obtained by controlling the concentration of CuCl ₂ aqueous solution. One had a high water contact angle (CA) of 162 ± 2°with a small sliding angle SA of less than 2 ± 1°, which was identified with Cassie-Baxter model, the other had a high CA of larger than 150°with a high adhesion, which was identified with Gecko model. CuZn ₅-ZnO-CuO micro-nano binary structure leads to superhydrophobicity of the surface. Wettability and durability of surfaces were investigated and a theoretical explanation on superhydrophobic surfaces is presented. Durability test was carried out to study properties of the surface. Formation mechanism of the surface was also explained.

Original language	English
Pages (from-to)	657-663
Number of pages	7
Journal	Materials Chemistry and Physics
Volume	134
Issue number	2-3
DOIs	https://doi.org/10.1016/j.matchemphys.2012.03.046
Publication status	Published - 15 Jun 2012

Keywords

Heat treatment
Metals
Surface properties
Thin films

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10.1016/j.matchemphys.2012.03.046

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title = "Fabrication of CuZn 5-ZnO-CuO micro-nano binary superhydrophobic surfaces of Cassie-Baxter and Gecko model on zinc substrates",

abstract = "Superhydrophobic surfaces were prepared via immersing the clean perpendicular zinc substrates into aqueous copper chloride (CuCl 2) solution and followed by annealing in dry air. Two Superhydrophobic models were obtained by controlling the concentration of CuCl 2 aqueous solution. One had a high water contact angle (CA) of 162 ± 2°with a small sliding angle SA of less than 2 ± 1°, which was identified with Cassie-Baxter model, the other had a high CA of larger than 150°with a high adhesion, which was identified with Gecko model. CuZn 5-ZnO-CuO micro-nano binary structure leads to superhydrophobicity of the surface. Wettability and durability of surfaces were investigated and a theoretical explanation on superhydrophobic surfaces is presented. Durability test was carried out to study properties of the surface. Formation mechanism of the surface was also explained.",

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author = "Xiaofeng Shi and Shixiang Lu and Wenguo Xu",

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T1 - Fabrication of CuZn 5-ZnO-CuO micro-nano binary superhydrophobic surfaces of Cassie-Baxter and Gecko model on zinc substrates

AU - Shi, Xiaofeng

AU - Lu, Shixiang

AU - Xu, Wenguo

PY - 2012/6/15

Y1 - 2012/6/15

N2 - Superhydrophobic surfaces were prepared via immersing the clean perpendicular zinc substrates into aqueous copper chloride (CuCl 2) solution and followed by annealing in dry air. Two Superhydrophobic models were obtained by controlling the concentration of CuCl 2 aqueous solution. One had a high water contact angle (CA) of 162 ± 2°with a small sliding angle SA of less than 2 ± 1°, which was identified with Cassie-Baxter model, the other had a high CA of larger than 150°with a high adhesion, which was identified with Gecko model. CuZn 5-ZnO-CuO micro-nano binary structure leads to superhydrophobicity of the surface. Wettability and durability of surfaces were investigated and a theoretical explanation on superhydrophobic surfaces is presented. Durability test was carried out to study properties of the surface. Formation mechanism of the surface was also explained.

AB - Superhydrophobic surfaces were prepared via immersing the clean perpendicular zinc substrates into aqueous copper chloride (CuCl 2) solution and followed by annealing in dry air. Two Superhydrophobic models were obtained by controlling the concentration of CuCl 2 aqueous solution. One had a high water contact angle (CA) of 162 ± 2°with a small sliding angle SA of less than 2 ± 1°, which was identified with Cassie-Baxter model, the other had a high CA of larger than 150°with a high adhesion, which was identified with Gecko model. CuZn 5-ZnO-CuO micro-nano binary structure leads to superhydrophobicity of the surface. Wettability and durability of surfaces were investigated and a theoretical explanation on superhydrophobic surfaces is presented. Durability test was carried out to study properties of the surface. Formation mechanism of the surface was also explained.

KW - Heat treatment

KW - Metals

KW - Surface properties

KW - Thin films

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SN - 0254-0584

VL - 134

SP - 657

EP - 663

JO - Materials Chemistry and Physics

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IS - 2-3

ER -

Fabrication of CuZn ₅-ZnO-CuO micro-nano binary superhydrophobic surfaces of Cassie-Baxter and Gecko model on zinc substrates

Abstract

Keywords

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