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Biomimetic Antigravity Water Transport and Remote Harvesting Powered by Sunlight
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Number of Authors: 82020 (English)In: Global Challenges, E-ISSN 2056-6646, Vol. 4, article id 2000043Article in journal (Refereed) Published
Abstract [en]

Antigravity water transport plays important roles in various applications ranging from agriculture, industry, and environmental engineering. In natural trees, ubiquitous water-flow over 100 m high from roots through the hierarchical xylem to leaves is driven by sunlight-powered continuous evaporation and the negative pressure. Inspired by natural trees, herein an artificial trunk-leaf system is built up to structurally mimic natural trees for a continuous antigravity water delivery. The artificial tree consists of directional microchannels for antigravity water transport, and a top leaf-like hybrid hydrogel that are acts as continuous solar steam evaporator, plus a purposely engineered steam collector. It is found that continuous uniform microchannels of acetylated chitin optimize and enhance capillary rise (approximate to 37 cm at 300 min) and reduce vertical water transport resistance. A remote water harvesting, and purification is performed with a high rate of 1.6 kg m(-2) h(-1) and 184 cm in height under 1 sun irradiation and the collection efficiency up to 100% by evaporative cooling technique. It is envisioned that the basic design principles underlying the artificial tree can be used to transform solar energy into potential energy.

Place, publisher, year, edition, pages
2020. Vol. 4, article id 2000043
Keywords [en]
antigravity water transport, artificial trees, biomimics, remote water harvesting, sunlight
National Category
Agriculture, Forestry and Fisheries Biological Sciences
Identifiers
URN: urn:nbn:se:su:diva-186430DOI: 10.1002/gch2.202000043ISI: 000566418100001OAI: oai:DiVA.org:su-186430DiVA, id: diva2:1492889
Available from: 2020-11-03 Created: 2020-11-03 Last updated: 2025-01-31Bibliographically approved

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Ma, HongyunYuan, Jiayin

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Department of Materials and Environmental Chemistry (MMK)
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