Self-cleaning and superhydrophobic CuO coating by jet-nebulizer spray pyrolysis technique

Latthe, Sanjay S.; Sudhagar, P.; Ravidhas, C.; Christy, Ashton; Kirubakaran, D.; Venkatesh, R.; Devadoss, Anitha; Terashima, Chiaki; Nakata, Kohei; Fujishima, Akira

doi:10.1039/c5ce00177c

Cited by 72 publications

(27 citation statements)

References 32 publications

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“…The dust particles also sit on the tips of the rough structure; therefore, it is easy for the spherical water drops to abundantly collect the dust particles and hence clean the surface [31][32][33]. The adhesion between the water drops and dust is greater than that between dust and a rough solid superhydrophobic surface.…”

Section: Self-cleaning Properties Of the Superhydrophobic Coatingmentioning

confidence: 98%

Self-cleaning transparent superhydrophobic coatings through simple sol–gel processing of fluoroalkylsilane

Liu

Latthe

et al. 2015

Applied Surface Science

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219

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Section: Self-cleaning Properties Of the Superhydrophobic Coatingmentioning

confidence: 98%

Self-cleaning transparent superhydrophobic coatings through simple sol–gel processing of fluoroalkylsilane

Liu

Latthe

et al. 2015

Applied Surface Science

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219

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“…This is because of superhydrophobic nature of coating. Presence of air pockets and lower surface energy on the surface do not allow the impacting water jet to enter into the rough structure of the surface and it leads the bouncing off from the surface [45]. Generally, impacting water stream can irreversibly ruin the water repellent properties of the superhydrophobic surface [46][47][48].…”

Section: Wetting Stability Of the Coatings Under Perturbation Conditionsmentioning

confidence: 99%

Fabrication of Mechanically Stable Superhydrophobic Aluminium Surface with Excellent Self-Cleaning and Anti-Fogging Properties

Varshney

Mohapatra

Kumar

2017

Preprint

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Development of the self-cleaning and anti-fogging superhydrophobic coating for aluminum surfaces which is durable in the aggressive conditions has raised tremendous interest in materials science.In this work, by employing chemical etching technique with mixture of hydrochloric and nitric acid, followed by passivation with lauric acid, superhydrophobic aluminum surface was synthesized. The surface morphology analysis reveals the presence of rough microstructures on coated aluminium surface.Superhydrophobicity with water contact angle of 170 ± 3.9° and sliding angle of 4 ± 0.5° is achieved.Surface bounces off the high speed water jet, indicating excellent water-repellent nature of coating. It is also continuously floated on water surface for several weeks, showing excellent buoyancy nature.Additionally, coating maintains its superhydrophobicity after undergoing 100 cycles of adhesive tape peeling test. Its superhydrophobic nature withstands 90° and 180° bending, and repeated folding and defolding. Coating exhibits the excellent self-cleaning property. In low temperature condensation test, almost no accumulation of water drops on the surface, showing the excellent anti-fogging property of coating. This approach can be applied to any size and shape of aluminium surface and hence has great industrial applications.

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“…Superhydrophobic surfaces that exhibit extreme water-repellent properties are both of scientific and industrial interest, due to their use in a range of applications, such as in water/oil separation, [1][2][3] anti-icing, [4][5][6] self-cleaning, 7,8 drug release, 9,10 and drag reduction in fluids. [11][12][13] Inspired by Lotus leaves, 14,15 Salvinia, 16 seaweed 17 and other species in nature, [18][19][20][21][22] a variety of man-made approaches have been pursued to mimic those surfaces to create artificial superhydrophobic surfaces.…”

Section: Introductionmentioning

confidence: 99%

Designing durable and flexible superhydrophobic coatings and its application in oil purification

Wang

Xiong

et al. 2016

J. Mater. Chem. A

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Lotus-inspired superhydrophobic coatings are usually mechanically weak and lack durability, this hinders their practical applications. A suspension that can be treated on various materials in any size and shape to form a mechanically durable superhydrophobic coating is developed, which retains water repellent properties after multiple cycles of abrasion, blade scratching, tape-peeling, repeated deformation, a series of environmental tests and recycling. Based on its superhydrophobicity under oil, two highly efficient systems were developed for oil purification -stirring and inverted cone systems. Small water drops converge on the coated surface that was immersed in oil through velocity-controlled stirring, or designing an inverted cone superhydrophobic surface under oil to collect water drops spontaneously. This coating can be readily used for practical applications to make a durable superhydrophobic coating that functions either in air or oils.

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Self-cleaning and superhydrophobic CuO coating by jet-nebulizer spray pyrolysis technique

Cited by 72 publications

References 32 publications

Self-cleaning transparent superhydrophobic coatings through simple sol–gel processing of fluoroalkylsilane

Self-cleaning transparent superhydrophobic coatings through simple sol–gel processing of fluoroalkylsilane

Fabrication of Mechanically Stable Superhydrophobic Aluminium Surface with Excellent Self-Cleaning and Anti-Fogging Properties

Designing durable and flexible superhydrophobic coatings and its application in oil purification

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