Desert beetle-inspired superwettable patterned surfaces for water harvesting

Zhenwei Yu, Frank F. Yun, Yanqin Wang, Li Yao, Shixue Dou, Kesong Liu, Lei Jiang, Xiaolin Wang

Research output: Contribution to journalArticleResearchpeer-review

46 Citations (Scopus)

Abstract

With the impacts of climate change and impending crisis of clean drinking water, designing functional materials for water harvesting from fog with large water capacity has received much attention in recent years. Nature has evolved different strategies for surviving dry, arid, and xeric conditions. Nature is a school for human beings. In this contribution, inspired by the Stenocara beetle, superhydrophilic/superhydrophobic patterned surfaces are fabricated on the silica poly(dimethylsiloxane) (PDMS)-coated superhydrophobic surfaces using a pulsed laser deposition approach with masks. The resultant samples with patterned wettability demonstrate water-harvesting efficiency in comparison with the silica PDMS-coated superhydrophobic surface and the Pt nanoparticles-coated superhydrophilic surface. The maximum water-harvesting efficiency can reach about 5.3 g cm−2 h−1. Both the size and the percentage of the Pt-coated superhydrophilic square regions on the patterned surface affect the condensation and coalescence of the water droplet, as well as the final water-harvesting efficiency. The present water-harvesting strategy should provide an avenue to alleviate the water crisis facing mankind in certain arid regions of the world.

Original languageEnglish
Article number1701403
Number of pages6
JournalSmall
Volume13
Issue number36
DOIs
Publication statusPublished - 27 Sep 2017
Externally publishedYes

Keywords

  • bioinspired
  • fog collection
  • superhydrophilic
  • superhydrophobic
  • wettability

Cite this

Yu, Z., Yun, F. F., Wang, Y., Yao, L., Dou, S., Liu, K., ... Wang, X. (2017). Desert beetle-inspired superwettable patterned surfaces for water harvesting. Small, 13(36), [1701403]. https://doi.org/10.1002/smll.201701403
Yu, Zhenwei ; Yun, Frank F. ; Wang, Yanqin ; Yao, Li ; Dou, Shixue ; Liu, Kesong ; Jiang, Lei ; Wang, Xiaolin. / Desert beetle-inspired superwettable patterned surfaces for water harvesting. In: Small. 2017 ; Vol. 13, No. 36.
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Yu, Z, Yun, FF, Wang, Y, Yao, L, Dou, S, Liu, K, Jiang, L & Wang, X 2017, 'Desert beetle-inspired superwettable patterned surfaces for water harvesting', Small, vol. 13, no. 36, 1701403. https://doi.org/10.1002/smll.201701403

Desert beetle-inspired superwettable patterned surfaces for water harvesting. / Yu, Zhenwei; Yun, Frank F.; Wang, Yanqin; Yao, Li; Dou, Shixue; Liu, Kesong; Jiang, Lei; Wang, Xiaolin.

In: Small, Vol. 13, No. 36, 1701403, 27.09.2017.

Research output: Contribution to journalArticleResearchpeer-review

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AU - Jiang, Lei

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Yu Z, Yun FF, Wang Y, Yao L, Dou S, Liu K et al. Desert beetle-inspired superwettable patterned surfaces for water harvesting. Small. 2017 Sep 27;13(36). 1701403. https://doi.org/10.1002/smll.201701403