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Reversibly switching water droplets wettability on hierarchical structured Cu(2)S mesh for efficient oil/water separation

Surfaces with reversible wettability have broad applications but remain challenging since the switching process is usually energy intensive and complex. In this paper, a pyramid shaped Cu(2)S film with hierarchical micro/nanostructures is formed on a commercial copper mesh. This film is formed by a...

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Detalles Bibliográficos
Autores principales: Xu, Shanya, Sheng, Rui, Cao, Yali, Yan, Junfeng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6713748/
https://www.ncbi.nlm.nih.gov/pubmed/31462670
http://dx.doi.org/10.1038/s41598-019-48952-1
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author Xu, Shanya
Sheng, Rui
Cao, Yali
Yan, Junfeng
author_facet Xu, Shanya
Sheng, Rui
Cao, Yali
Yan, Junfeng
author_sort Xu, Shanya
collection PubMed
description Surfaces with reversible wettability have broad applications but remain challenging since the switching process is usually energy intensive and complex. In this paper, a pyramid shaped Cu(2)S film with hierarchical micro/nanostructures is formed on a commercial copper mesh. This film is formed by a spontaneous redox sulfuration reaction and results in a roughened surface, which enables reversible wetting transition between superhydrophilicity to superhydrophobicity. This switching occurs by simple processes such as alternately storing in air or using an ethanol solution treatment and yields cyclic wettability switching for many cycles. This convenient wetting transition behavior, as well as strong stability and efficient oil/water separation with efficiency exceeding 98%, renders it as a potentially useful mesh material for switchable surfaces.
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spelling pubmed-67137482019-09-13 Reversibly switching water droplets wettability on hierarchical structured Cu(2)S mesh for efficient oil/water separation Xu, Shanya Sheng, Rui Cao, Yali Yan, Junfeng Sci Rep Article Surfaces with reversible wettability have broad applications but remain challenging since the switching process is usually energy intensive and complex. In this paper, a pyramid shaped Cu(2)S film with hierarchical micro/nanostructures is formed on a commercial copper mesh. This film is formed by a spontaneous redox sulfuration reaction and results in a roughened surface, which enables reversible wetting transition between superhydrophilicity to superhydrophobicity. This switching occurs by simple processes such as alternately storing in air or using an ethanol solution treatment and yields cyclic wettability switching for many cycles. This convenient wetting transition behavior, as well as strong stability and efficient oil/water separation with efficiency exceeding 98%, renders it as a potentially useful mesh material for switchable surfaces. Nature Publishing Group UK 2019-08-28 /pmc/articles/PMC6713748/ /pubmed/31462670 http://dx.doi.org/10.1038/s41598-019-48952-1 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Xu, Shanya
Sheng, Rui
Cao, Yali
Yan, Junfeng
Reversibly switching water droplets wettability on hierarchical structured Cu(2)S mesh for efficient oil/water separation
title Reversibly switching water droplets wettability on hierarchical structured Cu(2)S mesh for efficient oil/water separation
title_full Reversibly switching water droplets wettability on hierarchical structured Cu(2)S mesh for efficient oil/water separation
title_fullStr Reversibly switching water droplets wettability on hierarchical structured Cu(2)S mesh for efficient oil/water separation
title_full_unstemmed Reversibly switching water droplets wettability on hierarchical structured Cu(2)S mesh for efficient oil/water separation
title_short Reversibly switching water droplets wettability on hierarchical structured Cu(2)S mesh for efficient oil/water separation
title_sort reversibly switching water droplets wettability on hierarchical structured cu(2)s mesh for efficient oil/water separation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6713748/
https://www.ncbi.nlm.nih.gov/pubmed/31462670
http://dx.doi.org/10.1038/s41598-019-48952-1
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