Bioinspired self-cleaning surfaces with superhydrophobicity, superoleophobicity, and superhydrophilicity

Nishimoto, Shinji; Bhushan, Bharat

doi:10.1039/c2ra21260a

Cited by 721 publications

(484 citation statements)

References 98 publications

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“…SLIPS provide an alternative approach for further performance enhancement at larger supersaturations 108 , eliminating flooding of the surface structure while maintaining low droplet adhesion [109][110][111][112] . In addition, the ability of these surfaces to be omniphobic [113][114][115][116] 47 . Jumping condensation shows the highest condensation HTC for low supersaturations (S < 1.12) 47 .…”

Section: Summary and Future Outlookmentioning

confidence: 99%

Condensation heat transfer on superhydrophobic surfaces

2013

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(150 words max)Condensation is a phase change phenomenon often encountered in nature and industry for applications including power generation, thermal management, desalination, and environmental control. For the past eight decades, researchers have focused on creating surfaces allowing condensed droplets to be easily removed by gravity for enhanced heat transfer performance.Recent advancements in nanofabrication have enabled increased control of surface structuring for the development of superhydrophobic surfaces with even higher droplet mobility, and in some cases, coalescence-induced droplet jumping. Here, we provide a review of new insights gained to tailor superhydrophobic surfaces for enhanced condensation heat transfer considering the role of surface structure, nucleation density, droplet morphology, and droplet dynamics.Furthermore, we identify challenges and new opportunities to advance these surfaces for broad implementation into thermo-fluidic systems.

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Section: Summary and Future Outlookmentioning

confidence: 99%

Condensation heat transfer on superhydrophobic surfaces

2013

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“…In recent years, improving the corrosion resistance of metallic materials by surface superhydrophobization has become one of the hottest research areas in corrosion and protection. Compared to existing literature which has frequently reviewed the theories, preparation, and applications of superhydrophobic surfaces, [8][9][10][11][12][13][14][15] this review mainly focuses on the most recent developments of superhydrophobic surfaces for anticorrosion purposes. The authors review the typical preparation techniques of superhydrophobic anticorrosive surfaces and their anticorrosive performance, and provide a critical discussion of some mechanistic aspects of corrosion protection based on superhydrophobicity.…”

Section: Introductionmentioning

confidence: 99%

Superhydrophobic surfaces for corrosion protection: a review of recent progresses and future directions

et al. 2015

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Due to their superior water-repelling effects, superhydrophobic surfaces have received increasing attention as a promising solution to corrosion of metallic materials. The present article introduces the fundamental theories behind superhydrophobicity followed by a comprehensive review of the recent progresses of this rapidly growing field over the past 5 years. A critical discussion over anticorrosion mechanisms of superhydrophobic surfaces is also provided. For many realistic applications, future efforts are pressingly demanded to prolong the corrosion resistance of these superhydrophobic surfaces. To this end, several important strategies and examples in designing stable, selfhealable, or inhibitor-loaded superhydrophobic surfaces are discussed.

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“…The underwater oleophobicity is to be distinguished from the in-air oleophobicity which stands for resistance to oil adhesion in air. Inspired by biological surfaces such as sharkskin and clamshells that are resistant to biological or organic adhesion underwater, the materials science community has developed a plethora of interfacial materials with underwater superoleophobicity for different applications such as marine biofouling control [21,22] and oil-water separations [23][24][25][26][27][28][29][30][31][32][33]. In general, there are two requirements for constructing an underwater superoleophobic surface: rough (textured) surface morphology and hydrophilic surface chemistry.…”

Section: Introductionmentioning

confidence: 99%

Tailoring surface charge and wetting property for robust oil-fouling mitigation in membrane distillation

Wang

Jin

Hou

et al. 2016

Journal of Membrane Science

123

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a b s t r a c tThe efforts of developing anti-oil-fouling membranes have so far been focusing on tailoring membrane surface wetting properties, whereas the impacts of surface charge are often eclipsed. In this study, we investigated the impacts of surface charge and wetting property on oil fouling kinetics in membrane distillation (MD). Two composite membranes with in-air hydrophilic and underwater oleophobic surfaces, one of positive charge and the other of negative charge, were fabricated by modifying a hydrophobic polyvinylidene fluoride (PVDF) membrane with hydrophilic polyelectrolytes with different charges. The modified composite membranes were compared with the reference PVDF membrane for their contact angles, adhesion force curves, and fouling kinetics in MD processes. It was found that the negatively charged composite membrane performed the best in mitigating fouling by the negatively charged oil emulsion, followed by the positively charged composite membrane, with the pristine PVDF membrane being the most susceptible to oil fouling in MD experiments. The results from underwater oil CA measurements and oil probe force spectroscopy corroborated the results in the fouling experiments. The impact of surface charges on oil-membrane interaction and associated mechanism were also discussed.

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Bioinspired self-cleaning surfaces with superhydrophobicity, superoleophobicity, and superhydrophilicity

Cited by 721 publications

References 98 publications

Condensation heat transfer on superhydrophobic surfaces

Condensation heat transfer on superhydrophobic surfaces

Superhydrophobic surfaces for corrosion protection: a review of recent progresses and future directions

Tailoring surface charge and wetting property for robust oil-fouling mitigation in membrane distillation

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