Intelligent Coatings with Controlled Wettability for Oil–Water Separation
Intelligent surfaces with controlled wettability have caught much attention in industrial oily wastewater treatment. In this study, a hygro-responsive superhydrophilic/underwater superoleophobic coating was fabricated by the liquid-phase deposition of SiO<sub>2</sub> grafted with perfluo...
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| Format: | Article |
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MDPI AG
2022-09-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/12/18/3120 |
| _version_ | 1797484237919617024 |
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| author | Shumin Fan Yunxiang Li Rujun Wang Wenwen Ma Yipei Shi Wenxiu Fan Kelei Zhuo Guangri Xu |
| author_facet | Shumin Fan Yunxiang Li Rujun Wang Wenwen Ma Yipei Shi Wenxiu Fan Kelei Zhuo Guangri Xu |
| author_sort | Shumin Fan |
| collection | DOAJ |
| description | Intelligent surfaces with controlled wettability have caught much attention in industrial oily wastewater treatment. In this study, a hygro-responsive superhydrophilic/underwater superoleophobic coating was fabricated by the liquid-phase deposition of SiO<sub>2</sub> grafted with perfluorooctanoic acid. The wettability of the surface could realize the transformation from superhydrophilicity/underwater superoleophobicity (SHI/USOB) to superhydrophobicity/superoleophilicity (SHB/SOI), both of which exhibited excellent separation performance towards different types of oil–water mixtures with the separation efficiency higher than 99%. Furthermore, the long-chain perfluoroakyl substances on the surface could be decomposed by mixing SiO<sub>2</sub> with TiO<sub>2</sub> nanoparticles under UV irradiation, which could reduce the pollution to human beings and environment. It is anticipated that the prepared coating with controlled wettability could provide a feasible solution for oil–water separation. |
| first_indexed | 2024-03-09T22:59:37Z |
| format | Article |
| id | doaj.art-f70e0905d9ab4ae5a61dba1f29bbcdf2 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T22:59:37Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-f70e0905d9ab4ae5a61dba1f29bbcdf22023-11-23T18:05:47ZengMDPI AGNanomaterials2079-49912022-09-011218312010.3390/nano12183120Intelligent Coatings with Controlled Wettability for Oil–Water SeparationShumin Fan0Yunxiang Li1Rujun Wang2Wenwen Ma3Yipei Shi4Wenxiu Fan5Kelei Zhuo6Guangri Xu7School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, ChinaSchool of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, ChinaSchool of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, ChinaSchool of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, ChinaSchool of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, ChinaSchool of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, ChinaSchool of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, ChinaSchool of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, ChinaIntelligent surfaces with controlled wettability have caught much attention in industrial oily wastewater treatment. In this study, a hygro-responsive superhydrophilic/underwater superoleophobic coating was fabricated by the liquid-phase deposition of SiO<sub>2</sub> grafted with perfluorooctanoic acid. The wettability of the surface could realize the transformation from superhydrophilicity/underwater superoleophobicity (SHI/USOB) to superhydrophobicity/superoleophilicity (SHB/SOI), both of which exhibited excellent separation performance towards different types of oil–water mixtures with the separation efficiency higher than 99%. Furthermore, the long-chain perfluoroakyl substances on the surface could be decomposed by mixing SiO<sub>2</sub> with TiO<sub>2</sub> nanoparticles under UV irradiation, which could reduce the pollution to human beings and environment. It is anticipated that the prepared coating with controlled wettability could provide a feasible solution for oil–water separation.https://www.mdpi.com/2079-4991/12/18/3120wettability transformationsuperhydrophilic/underwater superoleophobicsuperhydrophobic/superoleophilicseparation |
| spellingShingle | Shumin Fan Yunxiang Li Rujun Wang Wenwen Ma Yipei Shi Wenxiu Fan Kelei Zhuo Guangri Xu Intelligent Coatings with Controlled Wettability for Oil–Water Separation Nanomaterials wettability transformation superhydrophilic/underwater superoleophobic superhydrophobic/superoleophilic separation |
| title | Intelligent Coatings with Controlled Wettability for Oil–Water Separation |
| title_full | Intelligent Coatings with Controlled Wettability for Oil–Water Separation |
| title_fullStr | Intelligent Coatings with Controlled Wettability for Oil–Water Separation |
| title_full_unstemmed | Intelligent Coatings with Controlled Wettability for Oil–Water Separation |
| title_short | Intelligent Coatings with Controlled Wettability for Oil–Water Separation |
| title_sort | intelligent coatings with controlled wettability for oil water separation |
| topic | wettability transformation superhydrophilic/underwater superoleophobic superhydrophobic/superoleophilic separation |
| url | https://www.mdpi.com/2079-4991/12/18/3120 |
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