Synergistic chemical patterns on a hydrophilic slippery liquid infused porous surface (SLIPS) for water harvesting applications

Maji, Kousik; Das, Avijit; Dhar, Manideepa; Manna, Uttam

doi:10.1039/d0ta09271a

Cited by 34 publications

(22 citation statements)

References 31 publications

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“…Surface Wettability Gradient: Making millimeter-sized droplet move toward the designed direction is desired in wide liquid-manipulation-related [125][126][127][128][129][130][131][132][133] applications like liquid collection, [134][135][136][137][138][139][140][141][142][143][144][145][146][147][148][149][150] printing, [151] hydropower utilization optimization [152,153] or microfluidics. [154,155] By designing a nonwetting solid surface with a wettability gradient, vertical momentum of impacting droplet can be transferred to horizontal momentum with the designed direction.…”

Section: Oblique Bouncingmentioning

confidence: 99%

Droplet Bouncing: Fundamentals, Regulations, and Applications

Han

Tang

et al. 2022

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Droplet impact is a ubiquitous phenomenon in nature, daily life, and industrial processes. It is thus crucial to tune the impact outcomes for various applications. As a special outcome of droplet impact, the bouncing of droplets keeps the form of the droplets after the impact and minimizes the energy loss during the impact, being beneficial in many applications. A unified understanding of droplet bouncing is in high demand for effective development of new techniques to serve applications. This review shows the fundamentals, regulations, and applications of millimeter‐sized droplet bouncing on solid surfaces and same/miscible liquids (liquid pool and another droplet). Regulation methods and current applications are summarized, and potential directions are proposed.

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Section: Oblique Bouncingmentioning

confidence: 99%

Droplet Bouncing: Fundamentals, Regulations, and Applications

Han

Tang

et al. 2022

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“…[107,108] As the research further develops, various FHDs based on the combination of two organisms through some ingenious designs with an amazing fog harvesting efficiency have been wildly reported. [109][110][111][112][113] Inspired by cactus conical spines and desert beetles, Zhao et al prepared a hybrid membrane with asymmetric structure and anisotropic wettability through an electrospinning layer of poly(vinylidene fluoride-co-hexafluoropropylene) nanofibers (PNFs) and electrochemically anodized a layer of Cu(OH) 2 nanoneedles (CNNs) on the surface of Cu mesh, [114] formed a CNN/PNF interlaced structure hybrid membrane (Figure 7a). Scanning electron microscope (SEM) images of the sample after each step are shown in Figure 7b-d.…”

Section: Dual Biomimetic Fhdsmentioning

confidence: 99%

Section: Bioinspired Fhdsmentioning

confidence: 99%

Fog Harvesting Devices Inspired from Single to Multiple Creatures: Current Progress and Future Perspective

Zhu

Zhang

et al. 2022

Adv Funct Materials

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The increasing demand for clean water driven by the rapid growth of the population and the pollution of water necessitates the development of direct and rapid water harvesting methods. Fog harvesting is proven as a highly efficient water capture method in dry but foggy areas. Herein, the state-of-the-art developments on the multiple biomimetic fog harvesting devices (FHDs) are presented. First, the fundamental and specific mechanisms of fog harvesting involving the Namib Desert beetle, spider silk, cactus, and Nepenthes alata are described in detail, respectively. Second, an in-depth discussion on the mechanisms of fog harvesting including fog capture and water transport is proposed. Third, a detailed account of the innovative design strategies and fabrication technologies of FHDs is proposed, from single to multiple biomimetic FHDs with typical examples and the merits and demerits are compared. Finally, a critical analysis of current challenges and future development is presented, aiming to promote next-generation FHDs from scientific research to practical application.

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“…Meanwhile, microdroplets tend to form a wrapping layer at the water-air interfaces on HBSs, hindering droplet coalescence and further nucleation 2 Friction | https://mc03.manuscriptcentral.com/friction [28][29][30]. Furthermore, the condensed water droplets are easily pinned on the HBSs because the wetting changes from the Cassie-Baxter state to the Wenzel state [23,[31][32][33]. Because of these traits, HBSs have poor performance in all three stages of fog harvesting.…”

Section: Introductionmentioning

confidence: 99%

“…Despite the better performance of HHSs for fog capture and water condensation, it is difficult to remove water droplets from the surface, owing to the formation of water films. Lubricantinfused slippery surfaces have advantages for all three stages of fog harvesting [29,31,35,36]. They have a high nucleation density of water droplets in the fogcapture process, which shortens the distance between water droplets and promotes the condensation of water droplets.…”

Section: Introductionmentioning

confidence: 99%

Lubricant self-replenishing slippery surface with prolonged service life for fog harvesting

et al. 2021

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Slippery lubricant-infused surfaces exhibit excellent fog-harvesting capacities compared with superhydrophobic and superhydrophilic surfaces. However, lubricant depletion is typically unavoidable under dynamic conditions, and reinfused oil is generally needed to recover the fog-harvesting capacity. Herein, an effective strategy for delaying the depletion of lubricant to prolong the service life of fog harvesting is proposed. An ultrathin transparent lubricant self-replenishing slippery surface was fabricated via facile one-step solvent evaporation polymerization. The gel film of the lubricant self-replenishing slippery surface, which was embedded with oil microdroplets, was attached to glass slides via the phase separation and evaporation of tetrahydrofuran. The gel film GFs-150 (with oil content 150 wt% of aminopropyl-terminated polydimethyl siloxane (PDMS-NH2)) exhibited superior slippery and fog-harvesting performance to other gel films. Furthermore, the slippery surfaces with the trait of oil secretion triggered by mechanical stress exhibited better fog-harvesting capabilities and longer service life than surfaces without the function of lubricant self-replenishment. The lubricant self-replenishing, ultrathin, and transparent slippery surfaces reported herein have considerable potential for applications involving narrow spaces, visualization, long service life, etc.

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Synergistic chemical patterns on a hydrophilic slippery liquid infused porous surface (SLIPS) for water harvesting applications

Abstract: Design of robust interface having an efficient water harvesting ability is important for more realistic application. Here, a dual chemically reactive porous polymeric interface is introduced to adopt various bio-inspired...

Cited by 34 publications

References 31 publications

Droplet Bouncing: Fundamentals, Regulations, and Applications

Droplet Bouncing: Fundamentals, Regulations, and Applications

Fog Harvesting Devices Inspired from Single to Multiple Creatures: Current Progress and Future Perspective

Lubricant self-replenishing slippery surface with prolonged service life for fog harvesting

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