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A bioinspired structured graphene surface with tunable-wetting and high wearable property for efficient fog collection

Abstract

Inspired by the fog harvesting ability of the spider net and interphase wetting surface of Namib desert beetles, we designed a kind of special bioinspired hybrid wetting surface on the Cu mesh by combining polydimethylsiloxane (PDMS) and graphene (G). The surface containing hydrophobic and superhydrophobic areas, is prepared by combination of laser etching and ultrasonic vibration. Thus, this as-prepared hybrid wetting surface can quickly drive tiny water droplets toward more wettable regions, which makes a great contribution to the improvement of collecting efficiency. Moreover, the PDMS/G surface not only is tolerant to many stresses such as excellent anti-corrosion ability, anti-UV exposure and oil contamination, but also self-healing simply by burning to the worn areas, which thus endows the surface tunable-wettability change between flame treatment and abrasive wear. This study offers a novel insight into the design of burned healed materials with interphase wettability that may enhance the fog collection efficiency in engineering liquids harvesting equipment, and realize renewable materials in situ, cheaply, rapidly by processes that can be easily scaled and automated.

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Publication details

The article was received on 21 May 2018, accepted on 18 Jul 2018 and first published on 19 Jul 2018


Article type: Paper
DOI: 10.1039/C8NR04109A
Citation: Nanoscale, 2018, Accepted Manuscript
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    A bioinspired structured graphene surface with tunable-wetting and high wearable property for efficient fog collection

    Y. Liu, Y. Song, H. Jiang, S. Li, C. Kaya, T. Stegmaier, Z. Han and L. Ren, Nanoscale, 2018, Accepted Manuscript , DOI: 10.1039/C8NR04109A

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