Photocatalytically Active Superhydrophilic/Superoleophobic Coating
Copyright © 2020 American Chemical Society..
Hydrophilic materials are easily fouled by organic contaminants owing to their high surface energy, and this oil-fouling problem severely hinders their use in practical applications. To address this challenge, herein, a hydrophilic coating with oil repellency and photocatalytic activity is developed by a spray-casting process. In the air surrounding, a water droplet spreads over the coating surface completely, while oil droplets exhibit contact angles more than 150° and moving on the coating freely. The water-wetted coating still had oil repellency, as the water layer on the coating surface can act as a lubricant to repel oil. Although methylene blue aqueous solution contaminates the coating by wetting it completely, these water-soluble organic molecules can be removed by UV illumination, due to the photocatalytic activity of the coating. Exploiting its water-attracting and oil-repelling properties, the coating deposited on a copper mesh is applied as a multiplatform for oil-water separation with high separation efficiency. This study provides a novel and efficient way to solve the oil-fouling problem of hydrophilic materials.
Medienart: |
E-Artikel |
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Erscheinungsjahr: |
2020 |
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Erschienen: |
2020 |
Enthalten in: |
Zur Gesamtaufnahme - volume:5 |
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Enthalten in: |
ACS omega - 5(2020), 20 vom: 26. Mai, Seite 11448-11454 |
Sprache: |
Englisch |
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Beteiligte Personen: |
Lu, Jingwei [VerfasserIn] |
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Links: |
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Themen: |
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Anmerkungen: |
Date Revised 28.09.2020 published: Electronic-eCollection Citation Status PubMed-not-MEDLINE |
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doi: |
10.1021/acsomega.0c00474 |
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funding: |
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Förderinstitution / Projekttitel: |
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PPN (Katalog-ID): |
NLM310586631 |
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520 | |a Copyright © 2020 American Chemical Society. | ||
520 | |a Hydrophilic materials are easily fouled by organic contaminants owing to their high surface energy, and this oil-fouling problem severely hinders their use in practical applications. To address this challenge, herein, a hydrophilic coating with oil repellency and photocatalytic activity is developed by a spray-casting process. In the air surrounding, a water droplet spreads over the coating surface completely, while oil droplets exhibit contact angles more than 150° and moving on the coating freely. The water-wetted coating still had oil repellency, as the water layer on the coating surface can act as a lubricant to repel oil. Although methylene blue aqueous solution contaminates the coating by wetting it completely, these water-soluble organic molecules can be removed by UV illumination, due to the photocatalytic activity of the coating. Exploiting its water-attracting and oil-repelling properties, the coating deposited on a copper mesh is applied as a multiplatform for oil-water separation with high separation efficiency. This study provides a novel and efficient way to solve the oil-fouling problem of hydrophilic materials | ||
650 | 4 | |a Journal Article | |
700 | 1 | |a Zhu, Xiaotao |e verfasserin |4 aut | |
700 | 1 | |a Miao, Xiao |e verfasserin |4 aut | |
700 | 1 | |a Song, Yuanming |e verfasserin |4 aut | |
700 | 1 | |a Liu, Li |e verfasserin |4 aut | |
700 | 1 | |a Ren, Guina |e verfasserin |4 aut | |
700 | 1 | |a Li, Xiangming |e verfasserin |4 aut | |
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