Issue 14, 2019

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

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

Supplementary files

Article information

Article type
Paper
Submitted
20 Feb 2019
Accepted
06 Mar 2019
First published
07 Mar 2019

J. Mater. Chem. A, 2019,7, 8405-8413

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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