Water-collecting behavior of nanostructured surfaces with special wettability

Soyoung Choo, Hak Jong Choi, Heon Lee

Research output: Contribution to journalArticlepeer-review

51 Citations (Scopus)

Abstract

Dew is commonly formed even in dry regions, and we examined the suitability of surfaces with superhydrophilic patterns on a superhydrophobic background as a dew-harvesting system. Nanostructured surfaces with mixed wettability were fabricated by ZnO and TiO2 nanorods. The condensation properties were investigated by environmental scanning electron microscopy (ESEM), and the water-collecting function of the patterned surfaces in an artificial environment was confirmed. Condensation and water-collecting behavior were evaluated as a function of surface inclination angle and pattern shape. We examined the collecting efficiency among the different wettabilities at various inclination angles and observed the condensation behavior for various superhydrophilic shapes.

Original languageEnglish
Pages (from-to)563-568
Number of pages6
JournalApplied Surface Science
Volume324
DOIs
Publication statusPublished - 2015 Jan 1

Bibliographical note

Funding Information:
This research was supported by Nano Material Technology Development Program through the National Research Foundation of Korea(NRF) funded by the Ministry of Education , Science and Technology (2012M3A7B4035323). Also this research was conducted by the Pioneer Research Center Program through the NRF funded by the Ministry of Science, ICT & Future Planning (NRF-2013M3C1A3063597).

Publisher Copyright:
© 2014 Elsevier B.V. All rights reserved.

Keywords

  • Inclination angle
  • Textured surface
  • Water harvesting
  • Wetting anisotropy

ASJC Scopus subject areas

  • General Chemistry
  • Condensed Matter Physics
  • General Physics and Astronomy
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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