Magnetic field actuated manipulation and transfer of oil droplets on a stable underwater superoleophobic surface

Haifeng Feng; Xun Xu; Weichang Hao; Yi Du; Dongliang Tian; Lei Jiang

doi:10.1039/C6CP01419D

Magnetic field actuated manipulation and transfer of oil droplets on a stable underwater superoleophobic surface†

Haifeng Feng,^ab Xun Xu,^ab Weichang Hao,^bc Yi Du,*^ab Dongliang Tian*^abd and Lei Jiang^bde

* Corresponding authors

^a Institute for Superconducting and Electronic Materials (ISEM), Australian Institute for Innovative Materials (AIIM), University of Wollongong, Wollongong, NSW 2500, Australia
E-mail: yi_du@uow.edu.au

^b UOW-BUAA Joint Research Centre, Beihang University, Beijing 100191, P. R. China
E-mail: tiandl@buaa.edu.cn

^c Department of Physics and Key Laboratory of Micro-nano Measurement, Manipulation and Physics, Ministry of Education (MOE), Beihang University, Beijing 100191, P. R. China

^d Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry and Environment, Beihang University, Beijing 100191, P. R. China

^e Laboratory of Bioinspired Smart Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, P. R. China

Abstract

The transport of fluids at functional interfaces, driven by the external stimuli, is well established. The lossless transport of oil-based fluids under water remains a challenge, however, due to their high stickiness towards the surface. Here, a superhydrophilic and underwater superoleophobic tri-phase water/oil/solid nanoarray surface has been designed and prepared. The unique tri-phase surface exhibits underwater superoleophobic properties with an extremely low stickiness towards oil-based fluids. The magnetic-field-driven manipulation and transport of oil-based magnetic fluids are demonstrated under water, which opens up a new pathway to design flexible and smart devices for the control and transfer of liquid droplets by using tri-phase systems.

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DOI: https://doi.org/10.1039/C6CP01419D
Article type: Paper
Submitted: 01 Mar 2016
Accepted: 22 May 2016
First published: 24 May 2016

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Phys. Chem. Chem. Phys., 2016,18, 16202-16207

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Magnetic field actuated manipulation and transfer of oil droplets on a stable underwater superoleophobic surface

H. Feng, X. Xu, W. Hao, Y. Du, D. Tian and L. Jiang, Phys. Chem. Chem. Phys., 2016, 18, 16202 DOI: 10.1039/C6CP01419D

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Physical Chemistry Chemical Physics

Magnetic field actuated manipulation and transfer of oil droplets on a stable underwater superoleophobic surface†

Abstract

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Magnetic field actuated manipulation and transfer of oil droplets on a stable underwater superoleophobic surface

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