Preparation and Self-Cleaning Performance of Carbon-Based Superhydrophobic Coatings Based on Non-Fluorine and Non-Toxic Corn Straw
Recently, superhydrophobic surfaces with self-cleaning ability have attracted broad research interest due to their huge potential in daily lives and industrial applications, but the use of fluorinate, toxic organic compounds, and expensive feedstocks make superhydrophobic materials a great challenge...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-10-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/26/21/6401 |
| _version_ | 1797512068693229568 |
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| author | Yanbin Wang Lihui Kang Zhaoxia Li Qiong Su Shaofeng Pang Lichun Liang Dian Wang Shijun Cao |
| author_facet | Yanbin Wang Lihui Kang Zhaoxia Li Qiong Su Shaofeng Pang Lichun Liang Dian Wang Shijun Cao |
| author_sort | Yanbin Wang |
| collection | DOAJ |
| description | Recently, superhydrophobic surfaces with self-cleaning ability have attracted broad research interest due to their huge potential in daily lives and industrial applications, but the use of fluorinate, toxic organic compounds, and expensive feedstocks make superhydrophobic materials a great challenge in practical application. In this study, we present a facile dip-coating strategy to prepare superhydrophobic coatings with self-cleaning properties based on a non-fluorine and non-toxic system by using eco-friendly corn straw as raw material. During this process, aromatic carbon particles with rough hierarchical structures were prepared firstly via a simple fast pyrolysis process, followed by modification with polydimethylsiloxane (PDMS) in absolute ethanol solvent to decrease the surface free energy. Research shows these natural straw-derived carbons display a microstructure of several protrusions which is similar to the lotus leave’s and the resulted coatings exhibit an outstanding superhydrophobic property with a static water contact angle (WCA) of 151.67 ± 1.36 degrees. In addition, the as-prepared coatings possessed excellent self-cleaning performance: no contaminations were observed on the surfaces after examining with sludge, calcimine, water, and common liquids such as tea, milk, soybean milk as well as ink, which have a broad range of potential application in the field of antifouling, waterproofing, and anticorrosive. |
| first_indexed | 2024-03-10T05:55:42Z |
| format | Article |
| id | doaj.art-3ec582a9dd174012b0857fb8393b5ed1 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-10T05:55:42Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-3ec582a9dd174012b0857fb8393b5ed12023-11-22T21:20:47ZengMDPI AGMolecules1420-30492021-10-012621640110.3390/molecules26216401Preparation and Self-Cleaning Performance of Carbon-Based Superhydrophobic Coatings Based on Non-Fluorine and Non-Toxic Corn StrawYanbin Wang0Lihui Kang1Zhaoxia Li2Qiong Su3Shaofeng Pang4Lichun Liang5Dian Wang6Shijun Cao7School of Chemical Engineering, Northwest Minzu University, Lanzhou 730030, ChinaSchool of Chemical Engineering, Northwest Minzu University, Lanzhou 730030, ChinaSchool of Chemical Engineering, Northwest Minzu University, Lanzhou 730030, ChinaSchool of Chemical Engineering, Northwest Minzu University, Lanzhou 730030, ChinaSchool of Chemical Engineering, Northwest Minzu University, Lanzhou 730030, ChinaSchool of Chemical Engineering, Northwest Minzu University, Lanzhou 730030, ChinaSchool of Chemical Engineering, Northwest Minzu University, Lanzhou 730030, ChinaSchool of Chemical Engineering, Northwest Minzu University, Lanzhou 730030, ChinaRecently, superhydrophobic surfaces with self-cleaning ability have attracted broad research interest due to their huge potential in daily lives and industrial applications, but the use of fluorinate, toxic organic compounds, and expensive feedstocks make superhydrophobic materials a great challenge in practical application. In this study, we present a facile dip-coating strategy to prepare superhydrophobic coatings with self-cleaning properties based on a non-fluorine and non-toxic system by using eco-friendly corn straw as raw material. During this process, aromatic carbon particles with rough hierarchical structures were prepared firstly via a simple fast pyrolysis process, followed by modification with polydimethylsiloxane (PDMS) in absolute ethanol solvent to decrease the surface free energy. Research shows these natural straw-derived carbons display a microstructure of several protrusions which is similar to the lotus leave’s and the resulted coatings exhibit an outstanding superhydrophobic property with a static water contact angle (WCA) of 151.67 ± 1.36 degrees. In addition, the as-prepared coatings possessed excellent self-cleaning performance: no contaminations were observed on the surfaces after examining with sludge, calcimine, water, and common liquids such as tea, milk, soybean milk as well as ink, which have a broad range of potential application in the field of antifouling, waterproofing, and anticorrosive.https://www.mdpi.com/1420-3049/26/21/6401superhydrophobicself-cleaningeco-friendlydip-coatingpyrolysis |
| spellingShingle | Yanbin Wang Lihui Kang Zhaoxia Li Qiong Su Shaofeng Pang Lichun Liang Dian Wang Shijun Cao Preparation and Self-Cleaning Performance of Carbon-Based Superhydrophobic Coatings Based on Non-Fluorine and Non-Toxic Corn Straw Molecules superhydrophobic self-cleaning eco-friendly dip-coating pyrolysis |
| title | Preparation and Self-Cleaning Performance of Carbon-Based Superhydrophobic Coatings Based on Non-Fluorine and Non-Toxic Corn Straw |
| title_full | Preparation and Self-Cleaning Performance of Carbon-Based Superhydrophobic Coatings Based on Non-Fluorine and Non-Toxic Corn Straw |
| title_fullStr | Preparation and Self-Cleaning Performance of Carbon-Based Superhydrophobic Coatings Based on Non-Fluorine and Non-Toxic Corn Straw |
| title_full_unstemmed | Preparation and Self-Cleaning Performance of Carbon-Based Superhydrophobic Coatings Based on Non-Fluorine and Non-Toxic Corn Straw |
| title_short | Preparation and Self-Cleaning Performance of Carbon-Based Superhydrophobic Coatings Based on Non-Fluorine and Non-Toxic Corn Straw |
| title_sort | preparation and self cleaning performance of carbon based superhydrophobic coatings based on non fluorine and non toxic corn straw |
| topic | superhydrophobic self-cleaning eco-friendly dip-coating pyrolysis |
| url | https://www.mdpi.com/1420-3049/26/21/6401 |
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