One-step method for fabrication of biomimetic superhydrophobic surface on aluminum alloy

Liu, Yan; Liu, Jindan; Li, Shuyi; Wang, Yaming; Han, Zhiwu; Liu, Ren

doi:10.1016/j.colsurfa.2014.11.017

Cited by 98 publications

(35 citation statements)

References 42 publications

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“…51 In addition, Cl − can hardly reach the magnesium substrate to penetrate into the surface owing to the presence of air bag and capillary force. 49 In conclusion, microstructures and low free surface energy improve the corrosion resistance of the AS and CS.…”

Section: Resultsmentioning

confidence: 99%

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Simultaneously Fabricating Multifunctional Superhydrophobic/Superoleophilic Coatings by One-Step Electrodeposition Method on Cathodic and Anodic Magnesium Surfaces

Zhao

Kang

2016

J. Electrochem. Soc.

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A one-step electrodeposition method was developed to simultaneously prepare multifunctional superhydrophobic/superoleophilic coatings on cathodic and anodic magnesium surfaces, which was conducted in an ethanol solution containing magnesium nitrate and myristic acid. The morphology, wettability and chemical composition were characterized, which indicated that the low surface energy material (magnesium myristate) and hierarchical structures were generated on surfaces of the anode and cathode during this process. Water contact angles (CAs) of the coatings were greater than 150 • and sliding angles (SAs) were less than 6 • . Moreover, contact angles of olive oil, benzene, methylbenzene and dichloromethane were 0 • . The corrosion potentials (E corr ) of the anodic and cathodic superhydrophobic/superoleophilic coatings increased and corrosion current density (i corr ) decreased by 2 orders of magnitude, showing excellent corrosion resistance. Oil absorption tests showed that the superhydrophobic and superoleophilic property remained and the oil absorption capacities of the prepared coatings were 4.65 g/g and 7.62 g/g respectively even after 10 times of oil absorption and deoiling. Moreover, the anodic and cathodic superhydrophobic/superoleophilic coatings exhibited outstanding self-cleaning ability, chemical, long-term storage and mechanical stabilities. Since the substrates are bulk materials, this method may have a promising future in enlarging the applications of magnesium alloys. Solid surfaces with special wettability, such as superhydrophobic (with a water CA higher than 150• and SA less than 10 • ) or superoleophilic surfaces (with an oil CA less than 10• ) have been intensively studied due to their practical applications in diverse areas, such as self-cleaning, anti-fouling, anti-corrosion and oil/water separation.1-7 The research on biological surfaces, such as lotus leaves, rose petals, water striders, butterfly wings and rice leaves [8][9][10][11][12] has demonstrated that the superhydrophobic/superoleophilic properties of a surface are governed by the surface chemistry and unique micro/nanostructures. Up to now, numerous methods have been reported in constructing superhydrophobic/superoleophilic surfaces including chemical vapor deposition, 13 chemical etching, 14-16 hydrothermal, 17 sol-gel, 18 electrospinning, 19,20 laser treatment of surface. 21 However, many methods emphasize the coexistence of the low surface energy and surface roughness to obtain superhydrophobicity, resulting in lots of tedious treatments or involving expensive materials. Luckily, electrodeposition has been emerged as an effective technique to fabricate superhydrophobic/superoleophilic surfaces because it has advantages of easy control, simplicity, low temperature, low cost and the ability to make large-area surfaces. [22][23][24] Currently, a large number of published works are focused on fabricating superhydrophobic films on cathodic surfaces by electrodeposition method.25-28 Unfortunately, few published literature concerne...

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Section: Resultsmentioning

confidence: 99%

“…31 2 with the low surface energy will form on the AS. 49 The whole reaction processes can be formulated as follows: 49 which can be observed in Fig. 2.…”

Section: Resultsmentioning

confidence: 99%

Simultaneously Fabricating Multifunctional Superhydrophobic/Superoleophilic Coatings by One-Step Electrodeposition Method on Cathodic and Anodic Magnesium Surfaces

Zhao

Kang

2016

J. Electrochem. Soc.

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“…[1][2][3] In the past few decades, biomimetic fabrication has achieved great success in both fundamental science and practical applications. [4][5][6][7] For instance, the famous "lotus leaf effect" inspired researchers to develop various superhydrophobic surfaces with self-cleaning properties; 8 the spider silk provides inspiration to design water collection microfibers; 9-11 the structure of nacre gives a hint that layered brick-and-mortar architecture is essential to achieve superior mechanical strength and toughness, 12,13 thus artificial materials with extraordinary mechanical properties have been successfully prepared with the help of layer-bylayer assembly. [14][15][16] Recently, learning from fish scales that presents unique underwater superoleophobicity due to the water-phase micro/nanohierarchical structures, superoleophobic and low-adhesive interface has been fabricated on a solid substrate with multi-scale structures, via oil/water/solid threephase systems.…”

Section: Introductionmentioning

confidence: 99%

Bioinspired Underwater Superoleophobic Membrane Based on a Graphene Oxide Coated Wire Mesh for Efficient Oil/Water Separation

Liu

Zhang

et al. 2015

ACS Appl. Mater. Interfaces

179

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Inspired from fish scales that exhibit unique underwater superoleophobicity because of the presence of micronanostructures and hydrophilic slime on their surface, we reported here the facile fabrication of underwater superoleophobic membranes by coating a layer of graphene oxide (GO) on commercially available wire meshes with tunable pore sizes. Using the wire mesh as a ready-made mask, GO-embellished mesh with open apertures (GO@mesh) could be readily fabricated after subsequent O2 plasma treatments from the back side. Interestingly, the congenital microstructures of the crossed microwires in combination with the abundant hydrophilic oxygen-containing groups of the GO layer endow the resultant GO@mesh with unique underwater superoleophobic properties. The antioil tests show that the underwater contact angles of various oils including both organic reagents (undissolved in water) and vegetable oil on GO@mesh exceed 150°, indicating the superoleophobic nature. In a representative experiment, a mixture of bean oil and water that imitates culinary sewage has been well separated with the help of our GO@mesh. GO-embellished wire meshes may find broad applications in sewage purification, especially for the treatment of oil contaminations.

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“…Based on the principle, many studies have been carried out on improving the properties of material. By imitate the bionic morphology of lotus leaves, the super hydrophobic surface was prepared on aluminum alloy [12]. And the wear resistance can also be reformed by constructing non-smooth surface like shell [13].…”

Section: Introductionmentioning

confidence: 99%

Effect of one-step laser processed biomimetic coupling units' degrees on rolling contact fatigue wear resistance of train track alloy steel

Yang

Zhou

Zhang

et al. 2015

Surface and Coatings Technology

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One-step method for fabrication of biomimetic superhydrophobic surface on aluminum alloy

Cited by 98 publications

References 42 publications

Simultaneously Fabricating Multifunctional Superhydrophobic/Superoleophilic Coatings by One-Step Electrodeposition Method on Cathodic and Anodic Magnesium Surfaces

Simultaneously Fabricating Multifunctional Superhydrophobic/Superoleophilic Coatings by One-Step Electrodeposition Method on Cathodic and Anodic Magnesium Surfaces

Bioinspired Underwater Superoleophobic Membrane Based on a Graphene Oxide Coated Wire Mesh for Efficient Oil/Water Separation

Effect of one-step laser processed biomimetic coupling units' degrees on rolling contact fatigue wear resistance of train track alloy steel

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