Chen, Faze, Cai, Zexin, Chang, Xiaomeng, Yang, Zhen, Jing, Xiubing, Zhang, Dawei and Tian, Yanling (2023) Reversible bubble transfer on a bioinspired tridirectionally anisotropic lubricant-infused surface. Industrial & Engineering Chemistry Research, 62 (28). pp. 11032-11041. doi:10.1021/acs.iecr.3c01204 ISSN 0888-5885.
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Abstract
Underwater bubble transfers on functional surfaces with special wettability have important research value for many fields such as water purification, gas-evolving electrochemistry, heterogeneous catalysis, etc. However, realizing multi-interface collaborated and multi-directional bubble transfers are still challenging. Herein, inspired by butterfly wings, pitcher plants, and rice leaves, we present a tridirectionally anisotropic lubricant-infused surface (TALIS) with micro–nano hierarchical step-like structures that are covered with silicone oil. The TALIS exhibits significant tridirectional anisotropy in terms of bubble sliding, specifically, the slippery property parallel to the grooves with an ultra-low bubble sliding angle (BSA) of ∼2°, and the unidirectional wettability perpendicular to the grooves with BSA difference of ∼48° result from the step-edge pinning effect. By adjusting the step height and width, TALISs with different tridirectionally anisotropic wettability and stable bubble-holding efficiency (∼0.4 mg/cm2) are obtained. In addition, horizontal and anti-buoyancy unidirectional bubble transfers are realized by collaborative squeezing of two face-to-face TALISs. By adjusting the distance between the two TALISs, bubbles can be reversibly transferred between the two interfaces by multi-interfaces collaboration. This work opens a new avenue to understand the bubble behaviors on functional interfaces with anisotropic wettability and provides a method to realize controllable bubble transfer on multi directions.
| Item Type: | Journal Article |
|---|---|
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry |
| SWORD Depositor: | Library Publications Router |
| Journal or Publication Title: | Industrial & Engineering Chemistry Research |
| Publisher: | American Chemical Society |
| ISSN: | 0888-5885 |
| Official Date: | 19 July 2023 |
| Dates: | Date Event 19 July 2023 Published 6 July 2023 Available 27 June 2023 Accepted |
| Volume: | 62 |
| Number: | 28 |
| Page Range: | pp. 11032-11041 |
| DOI: | 10.1021/acs.iecr.3c01204 |
| Status: | Peer Reviewed |
| Publication Status: | Published |
| Access rights to Published version: | Restricted or Subscription Access |
| URI: | https://wrap.warwick.ac.uk/177376/ |
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