All-dry patterning method to fabricate hydrophilic/hydrophobic surface for fog harvesting

Gürsoy, Mehmet

doi:10.1007/s00396-020-04656-x

Cited by 23 publications

(11 citation statements)

References 36 publications

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“…The overall efficiency of water harvesting was determined by the relative importance of the capturing-efficiency and the removalefficiency. By mimicking various plants and animals, various surfaces that modified the surface wettability were developed [20][21][22][23][24]; for example, the modifications of mixed wettability and fiber size variations were based on the back of a beetle and cactus spine, respectively. These studies showed that the hybrid wettability substrates have better performance than uniform wetting coated surfaces.…”

Section: Introductionmentioning

confidence: 99%

Effect of Mesh Wettability Modification on Atmospheric and Industrial Fog Harvesting

et al. 2021

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Freshwater shortage has been receiving considerable attention, and water harvesting is one of the potential solutions to this water crisis. Several researchers have tried to improve the harvesting capabilities by changing mesh wettability for atmospheric fog harvesting. However, the wettability effect on water harvesting from white plumes has not yet been investigated thoroughly, despite industrial cooling towers being considered as alternative water resources, because of the large amounts of fog plumes generated. In this study, surface wettability was modified with a robust and simple method for practical scaled-up applications, and we explored the influence of mesh wettability on atmospheric and industrial fog harvesting. In atmospheric fog harvesting, both superhydrophilic meshes (SHPMs), and superhydrophobic meshes (SHBMs) were found to improve the harvesting performance, with superhydrophobic treatments providing the best collection efficiency. In contrast, only superhydrophilicity improves the performance in industrial fog harvesting with flat mesh screens. We hypothesize that this research will be useful for mesh design, as it analyzes the influence of mesh wettability on the performance of water collection in both atmospheric and industrial water harvesting.

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Section: Introductionmentioning

confidence: 99%

Effect of Mesh Wettability Modification on Atmospheric and Industrial Fog Harvesting

et al. 2021

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“…More recent studies by Nørgaard and Dacke (2010) postulate that the Stenocara beetle has a hydrophobic surface rather than a hybrid hydrophilic-hydrophobic nature [15]. Yet, the research to make and study hybrid surfaces for both condensation and fog harvesting during the last couple of decades has successfully shown such surfaces' efficiency [16][17][18][19][20][21][22][23][24]. The construction of hybrid surfaces by the researchers varied with materials, processes, and their complexity.…”

Section: Introductionmentioning

confidence: 99%

A Novel Design of Hybrid Hydrophilic-Superhydrophobic Surfaces for Fog Harvesting

Almusaied¹,

Asiabanpour²

2021

IJEMM

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The continuous growth in the human population and climate change exacerbates the problems related to water scarcity. Harvesting the atmospheric water can mitigate the water scarcity in many regions around the globe. Fog collection using hybrid hydrophilic-superhydrophobic surfaces has the capacity to achieve a higher water collection rate. In this paper, a new method and materials are introduced to create the hybrid surfaces. The method includes additive manufacturing- to make sheets with holes-, mixing and casting polymeric matrix composite, and a controlled spray coating mechanism. The materials comprised of hydrophobic coating on top of the acrylic printed sheet and hydrophilic composite. The ratios of the pitches to diameters of the hydrophilic regions varied during the experiments to obtain the best water generation. The water collection rate for the sample with diameters of 583 um and a pitch of 1600 um has achieved 57% more than the untreated hydrophilic sample. The contrast in wettability accomplished by this novel method has the potential to be implemented on a large scale for atmospheric water harvesting.

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“…In PECVD process, thin films can be produced as coatings directly on the desired substrates. [18][19][20][21][22] In this study, because of all these advantages of PECVD method, it was employed to synthesis PI thin films. 2-methyl-1,3-butadiene (isoprene) was chosen as monomer because of its high-vapor pressure (650 hPa at 20 C).…”

Section: Introductionmentioning

confidence: 99%

“…PECVD process also has other additional advantages such as real time thickness control, conformal deposition, and the ability to be easily employed into large‐scale production. In PECVD process, thin films can be produced as coatings directly on the desired substrates 18–22 …”

Section: Introductionmentioning

confidence: 99%

Vapor deposition polymerization of synthetic rubber thin film in a plasma enhanced chemical vapor deposition reactor

Gürsoy

2020

J of Applied Polymer Sci

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Rubber is one of the most commonly used industrial materials worldwide. However, there is a gap in the literature on the production of rubber thin films in nanoscale. When the rubber thin films are produced in nanoscale, they can be used in high-tech applications where bulk rubbers have never been used before. This study is one of the first investigations to focus on the vapor-based production of the polyisoprene (PI), which is an important member of the synthetic rubber class. For this purpose, a single-step, rapid and environmentally friendly method based on plasma enhanced chemical vapor deposition (PECVD) was employed to produce PI thin films using 2-methyl-1,3-butadiene (isoprene). The high-vapor pressure of isoprene makes it a promising monomer for the production of chemical vapor deposition polymers. The effect of plasma processing parameters on the PI deposition rate was investigated. The deposition rate of PI thin film as high as 40 nm/min was achieved and the contact angle of PI coated bamboo surface was found to be 146.8. The mechanical durability and laundering tests of PI thin films were performed. Based on this study results, PI thin films produced by PECVD can be used in a number of potential applications.

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All-dry patterning method to fabricate hydrophilic/hydrophobic surface for fog harvesting

Cited by 23 publications

References 36 publications

Effect of Mesh Wettability Modification on Atmospheric and Industrial Fog Harvesting

Effect of Mesh Wettability Modification on Atmospheric and Industrial Fog Harvesting

A Novel Design of Hybrid Hydrophilic-Superhydrophobic Surfaces for Fog Harvesting

Vapor deposition polymerization of synthetic rubber thin film in a plasma enhanced chemical vapor deposition reactor

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