An environmentally-friendly method to fabricate extreme wettability patterns on metal substrates with good time stability

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

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Author(s)

  • Jiyu Liu
  • Yang Chen
  • Jichao Zhang
  • Ziai Liu
  • Fan Zhang
  • Faze Chen
  • Liu Huang
  • Jing Sun
  • Zhuji Jin
  • Danyang Zhao
  • Xin Liu

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)880-885
Journal / PublicationApplied Surface Science
Volume494
Early online date26 Jul 2019
Publication statusE-pub ahead of print - 26 Jul 2019

Abstract

Wettability patterns have significant application potential in liquid transportation and water collection. Plasma hydrophilization is high-efficient and less-destructive, and has been widely used for preparing wettability patterns. However, the plasma-treated surfaces tend to recover to its original wettability, causing invalidation of the patterns. As a green treatment method, boiled water treatment could construct nanostructures, which is favorable for hydrophilicity-retaining; while the hydrophilization effect of plasma treatment would promote the reaction. Therefore, it should be possible to combine plasma and boiled water treatments to prepare long-lasting wettability patterns. In this paper, superhydrophobic aluminum surfaces were modified by plasma jet followed by boiled water treatment. The time stability, microstructures and chemical compositions of the treated surfaces were investigated by testing contact angles, scanning electron microscope, X-ray diffractometer, and X-ray photoelectron spectroscopy. The surfaces treated by plasma jet and boiled water could retain superhydrophilicity for a long time under various storage conditions, including normal ambient, high temperature or high humidity. On the basis of this technique, long-lasting patterns could be prepared on different metal substrates. The green method proposed is expected to have promising application potential in fabricating wettability patterns and lab-on-chip devices, especially for those used in severe conditions.

Research Area(s)

  • Boiled water, Plasma, Reversibility, Wettability pattern

Citation Format(s)

An environmentally-friendly method to fabricate extreme wettability patterns on metal substrates with good time stability. / Liu, Jiyu; Chen, Yang; Zheng, Huanxi; Zhang, Jichao; Liu, Ziai; Zhang, Fan; Chen, Faze; Huang, Liu; Sun, Jing; Jin, Zhuji; Zhao, Danyang; Liu, Xin.

In: Applied Surface Science, Vol. 494, 15.11.2019, p. 880-885.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review