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Using Paper as a Biomimetic Fog Harvesting Material

Breuer, Carina ; Cordt, Cynthia ; Hiller, Benjamin ; Geissler, Andreas ; Biesalski, Markus (2024)
Using Paper as a Biomimetic Fog Harvesting Material.
In: Advanced Materials Interfaces, 2024, 11 (8)
doi: 10.26083/tuprints-00027116
Article, Secondary publication, Publisher's Version

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Item Type: Article
Type of entry: Secondary publication
Title: Using Paper as a Biomimetic Fog Harvesting Material
Language: English
Date: 12 June 2024
Place of Publication: Darmstadt
Year of primary publication: 14 March 2024
Place of primary publication: Weinheim
Publisher: Wiley-VCH
Journal or Publication Title: Advanced Materials Interfaces
Volume of the journal: 11
Issue Number: 8
Collation: 12 Seiten
DOI: 10.26083/tuprints-00027116
Corresponding Links:
Origin: Secondary publication DeepGreen

This study identifies important factors for designing an effective biomimetic paper‐based fog harvesting substrate by examining the harvesting properties of different surfaces, including glass, polyethylene, and superhydrophobic paper. In laboratory‐scale fogging tests, the wetting behavior of the substrates is characterized, and the importance of the tilt angle of the respective surface relative to the fog flow is elaborated. Because successful fog harvesting requires both efficient accumulation of water droplets on the surface (by condensation and collision) and sufficient but not excessive roll‐off of the liquid, the amount of water finally collected is clearly related to the pinning effect, which should prevent the smallest droplets from being carried away by the wind but must not lead to full and permanent wetting of the surface. Coalescence is identified as a major phenomenon to improve droplet roll‐off. In this context, superhydrophobic paper indicates to be a more effective water collector than glass or polyethylene, especially when oriented vertically, since it allows the droplets to roll off very efficiently. Finally, the addition of glass particles to the superhydrophobic coating is proposed as a means of enhancing pinning and improving the fog harvesting efficiency.

Uncontrolled Keywords: biomimetic surface, droplet pinning, fog harvesting, paper materials, paper wetting, superhydrophobic wetting, water harvesting
Identification Number: Artikel-ID: 2301048
Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-271169
Classification DDC: 500 Science and mathematics > 540 Chemistry
Divisions: 07 Department of Chemistry > Ernst-Berl-Institut > Fachgebiet Makromolekulare Chemie > Macromolecular and paper chemistry
Date Deposited: 12 Jun 2024 11:45
Last Modified: 13 Jun 2024 07:40
SWORD Depositor: Deep Green
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/27116
PPN: 519057317
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