Mechanically Robust and Flexible GO/PI Hybrid Aerogels as Highly Efficient Oil Absorbents
Herein, mechanically robust and flexible graphene oxide/polyimide (GO/PI) hybrid aerogels (GIAs) were fabricated by a facile method, in which the mixed suspensions of the water-soluble polyimide precursor and graphene oxide (GO) sheets were freeze-dried, which was followed by a routine thermal imida...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/14/22/4903 |
| _version_ | 1797464174077411328 |
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| author | Li Zhang Yuting Wang Ruidong Wang Penggang Yin Juntao Wu |
| author_facet | Li Zhang Yuting Wang Ruidong Wang Penggang Yin Juntao Wu |
| author_sort | Li Zhang |
| collection | DOAJ |
| description | Herein, mechanically robust and flexible graphene oxide/polyimide (GO/PI) hybrid aerogels (GIAs) were fabricated by a facile method, in which the mixed suspensions of the water-soluble polyimide precursor and graphene oxide (GO) sheets were freeze-dried, which was followed by a routine thermal imidation process. The porous GIAs obtained not only exhibit excellent elasticity and extremely low density values (from 33.3 to 38.9 mg.cm<sup>−3</sup>), but they also possess a superior compressive strength (121.7 KPa). The GIAs could support a weight of up to 31,250 times of its own weight, and such a weight-carrying capacity is much higher than that of other typical carbon-based aerogels. Having such a porous structure, and high strength and toughness properties make GIAs ideal candidates for oil spill cleanup materials. The oil/organic solvents’ absorption capacity ranges from 14.6 to 85, which is higher than that of most other aerogels (sponges). With their broad temperature tolerance and acidic stability, the unique multifunctional GIAs are expected to further extend their application range into extreme environments. |
| first_indexed | 2024-03-09T18:03:15Z |
| format | Article |
| id | doaj.art-af509c49a09344668670762d574934d9 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T18:03:15Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-af509c49a09344668670762d574934d92023-11-24T09:42:53ZengMDPI AGPolymers2073-43602022-11-011422490310.3390/polym14224903Mechanically Robust and Flexible GO/PI Hybrid Aerogels as Highly Efficient Oil AbsorbentsLi Zhang0Yuting Wang1Ruidong Wang2Penggang Yin3Juntao Wu4Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing 100191, ChinaKey Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing 100191, ChinaKey Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing 100191, ChinaKey Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing 100191, ChinaKey Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing 100191, ChinaHerein, mechanically robust and flexible graphene oxide/polyimide (GO/PI) hybrid aerogels (GIAs) were fabricated by a facile method, in which the mixed suspensions of the water-soluble polyimide precursor and graphene oxide (GO) sheets were freeze-dried, which was followed by a routine thermal imidation process. The porous GIAs obtained not only exhibit excellent elasticity and extremely low density values (from 33.3 to 38.9 mg.cm<sup>−3</sup>), but they also possess a superior compressive strength (121.7 KPa). The GIAs could support a weight of up to 31,250 times of its own weight, and such a weight-carrying capacity is much higher than that of other typical carbon-based aerogels. Having such a porous structure, and high strength and toughness properties make GIAs ideal candidates for oil spill cleanup materials. The oil/organic solvents’ absorption capacity ranges from 14.6 to 85, which is higher than that of most other aerogels (sponges). With their broad temperature tolerance and acidic stability, the unique multifunctional GIAs are expected to further extend their application range into extreme environments.https://www.mdpi.com/2073-4360/14/22/4903GIAscompressive strengthabsorption capacity |
| spellingShingle | Li Zhang Yuting Wang Ruidong Wang Penggang Yin Juntao Wu Mechanically Robust and Flexible GO/PI Hybrid Aerogels as Highly Efficient Oil Absorbents Polymers GIAs compressive strength absorption capacity |
| title | Mechanically Robust and Flexible GO/PI Hybrid Aerogels as Highly Efficient Oil Absorbents |
| title_full | Mechanically Robust and Flexible GO/PI Hybrid Aerogels as Highly Efficient Oil Absorbents |
| title_fullStr | Mechanically Robust and Flexible GO/PI Hybrid Aerogels as Highly Efficient Oil Absorbents |
| title_full_unstemmed | Mechanically Robust and Flexible GO/PI Hybrid Aerogels as Highly Efficient Oil Absorbents |
| title_short | Mechanically Robust and Flexible GO/PI Hybrid Aerogels as Highly Efficient Oil Absorbents |
| title_sort | mechanically robust and flexible go pi hybrid aerogels as highly efficient oil absorbents |
| topic | GIAs compressive strength absorption capacity |
| url | https://www.mdpi.com/2073-4360/14/22/4903 |
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