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Issue 14, 2019
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An alternating nanoscale (hydrophilic–hydrophobic)/hydrophilic Janus cooperative copper mesh fabricated by a simple liquidus modification for efficient fog harvesting

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Abstract

The cooperation of different fog harvesting mechanisms together is now a hot topic, which can improve the efficiency of fog harvesting. Apart from an efficient harvesting mechanism, easy and low-cost fabrication of a fog collector is also key to accessing fresh water for usage. Herein, for the first time, we endowed a copper mesh with bio-inspired nanoscale alternating hydrophobic–hydrophilic chemistry patterns and Janus asymmetric wettability at the same time by a one-step simple liquidus modification. This method presents new insights for the fabrication of surfaces with special wettability. The nanoscale hydrophilic–hydrophobic/hydrophilic Janus copper mesh can use different harvesting mechanisms together and achieve efficient fog harvesting. Compared with the corresponding superhydrophilic membranes, the Janus membrane showed an ∼800% fog harvesting enhancement.

Graphical abstract: An alternating nanoscale (hydrophilic–hydrophobic)/hydrophilic Janus cooperative copper mesh fabricated by a simple liquidus modification for efficient fog harvesting

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Article information


Submitted
20 Feb 2019
Accepted
06 Mar 2019
First published
07 Mar 2019

J. Mater. Chem. A, 2019,7, 8405-8413
Article type
Paper

An alternating nanoscale (hydrophilic–hydrophobic)/hydrophilic Janus cooperative copper mesh fabricated by a simple liquidus modification for efficient fog harvesting

L. Zhong, J. Feng and Z. Guo, J. Mater. Chem. A, 2019, 7, 8405
DOI: 10.1039/C9TA01906E

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