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A large-scale water-harvesting device with beta-Al(OH)(3) microcone arrays by simple hydrothermal synthesis

Authors
Cho, HandongPark, ByungrakKim, MoonsuLee, SangminHwang, Woonbong
Issue Date
Dec-2017
Publisher
ROYAL SOC CHEMISTRY
Citation
JOURNAL OF MATERIALS CHEMISTRY A, v.5, no.48, pp 25328 - 25337
Pages
10
Journal Title
JOURNAL OF MATERIALS CHEMISTRY A
Volume
5
Number
48
Start Page
25328
End Page
25337
URI
https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/3478
DOI
10.1039/c7ta06874c
ISSN
2050-7488
2050-7496
Abstract
As the scarcity of fresh water emerges as a major global problem, fog-water harvesting is considered as a sustainable method for obtaining water resources. Although water-harvesting technologies based on special wetting surfaces have attracted considerable interest because of their high efficiency, many problems remain, including high cost and difficulties in the fabrication of special wetting surfaces. Here we report a novel approach to fabricate conical microstructures on aluminum substrates using a costeffective and scalable hydrothermal synthesis method. Due to their morphological features, the microcone surfaces exhibit extremely high wettability and excellent water-collection capacity. Furthermore, we suggest a practical water-harvesting device that allows an effective and sustainable way to collect fresh water from moist air and has enhanced adaptability to environmental conditions. These features enable us to develop a highly promising water-harvesting system for overcoming problems associated with water shortage.
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