Fabrication of Carbon Aerogels Derived from Metal-Organic Frameworks/Carbon Nanotubes/Cotton Composites as an Efficient Sorbent for Sustainable Oil–Water Separation
Due to the continuous occurrence of water pollution problems, practical separation methods for oil–water mixtures have attracted more and more attention. To date, different kinds of materials have been developed with good hydrophobic properties and strong separation ability. Carbon aerogels, as a pr...
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MDPI AG
2022-07-01
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| Series: | Applied Sciences |
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| author | Yinyu Sun Zhongcheng Ke Caiyun Shen Ruikang Sun Qing Wei Zihan Yin Wei Yang |
| author_facet | Yinyu Sun Zhongcheng Ke Caiyun Shen Ruikang Sun Qing Wei Zihan Yin Wei Yang |
| author_sort | Yinyu Sun |
| collection | DOAJ |
| description | Due to the continuous occurrence of water pollution problems, practical separation methods for oil–water mixtures have attracted more and more attention. To date, different kinds of materials have been developed with good hydrophobic properties and strong separation ability. Carbon aerogels, as a promising ideal adsorbent for dealing with oil-spill accidents, have received extensive attention. In this work, zeolitic imidazolate frameworks (ZIFs), nanoparticles, and carbon nanotubes (CNTs) in the three-dimensional (3D) interconnected network structure of cotton balls (CBs) were successfully prepared by a simple and scalable process. The as-prepared carbonized CBs with carbonized ZIF-8 and CNTs (CZIF-8/CNTs/CCBs) were characterized. The oil–water separation performance of the composite was also measured. The results show that the ZIF-8 clusters intercalated with abundant CNTs are fully loaded into the porous structure of the CBs after the in situ synthesis process. Additionally, ZIF-8/CNTs/CBs was carbonized in nitrogen, leading to the formation of CZIF-8/CNTs/CCBs. The prepared material possesses excellent hydrophobicity with a water contact angle of 152.7°, showing good absorption capacities Q<sub>1</sub> in the range of 48 to 84 times its original weight for oil and organic liquids. In addition, CZIF-8/CNTs/CCBs exhibits good recyclability in the absorption–distillation test. In summary, this study proposes a novel and simple method for the preparation of a superhydrophobic material that could have wide application in the separation of oil–water mixtures. |
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| format | Article |
| id | doaj.art-adcc4e5dc0ae4451b16e483d0bc63282 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T03:43:43Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
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| series | Applied Sciences |
| spelling | doaj.art-adcc4e5dc0ae4451b16e483d0bc632822023-12-03T14:37:37ZengMDPI AGApplied Sciences2076-34172022-07-011214728510.3390/app12147285Fabrication of Carbon Aerogels Derived from Metal-Organic Frameworks/Carbon Nanotubes/Cotton Composites as an Efficient Sorbent for Sustainable Oil–Water SeparationYinyu Sun0Zhongcheng Ke1Caiyun Shen2Ruikang Sun3Qing Wei4Zihan Yin5Wei Yang6School of Chemistry and Chemical Engineering, Huangshan University, Huangshan 245021, ChinaSchool of Chemistry and Chemical Engineering, Huangshan University, Huangshan 245021, ChinaSchool of Chemistry and Chemical Engineering, Huangshan University, Huangshan 245021, ChinaSchool of Chemistry and Chemical Engineering, Huangshan University, Huangshan 245021, ChinaSchool of Chemistry and Chemical Engineering, Huangshan University, Huangshan 245021, ChinaSchool of Chemistry and Chemical Engineering, Huangshan University, Huangshan 245021, ChinaSchool of Chemistry and Chemical Engineering, Huangshan University, Huangshan 245021, ChinaDue to the continuous occurrence of water pollution problems, practical separation methods for oil–water mixtures have attracted more and more attention. To date, different kinds of materials have been developed with good hydrophobic properties and strong separation ability. Carbon aerogels, as a promising ideal adsorbent for dealing with oil-spill accidents, have received extensive attention. In this work, zeolitic imidazolate frameworks (ZIFs), nanoparticles, and carbon nanotubes (CNTs) in the three-dimensional (3D) interconnected network structure of cotton balls (CBs) were successfully prepared by a simple and scalable process. The as-prepared carbonized CBs with carbonized ZIF-8 and CNTs (CZIF-8/CNTs/CCBs) were characterized. The oil–water separation performance of the composite was also measured. The results show that the ZIF-8 clusters intercalated with abundant CNTs are fully loaded into the porous structure of the CBs after the in situ synthesis process. Additionally, ZIF-8/CNTs/CBs was carbonized in nitrogen, leading to the formation of CZIF-8/CNTs/CCBs. The prepared material possesses excellent hydrophobicity with a water contact angle of 152.7°, showing good absorption capacities Q<sub>1</sub> in the range of 48 to 84 times its original weight for oil and organic liquids. In addition, CZIF-8/CNTs/CCBs exhibits good recyclability in the absorption–distillation test. In summary, this study proposes a novel and simple method for the preparation of a superhydrophobic material that could have wide application in the separation of oil–water mixtures.https://www.mdpi.com/2076-3417/12/14/7285zeolitic imidazolate frameworkscarbon nanotubescotton ballsoil–water separation |
| spellingShingle | Yinyu Sun Zhongcheng Ke Caiyun Shen Ruikang Sun Qing Wei Zihan Yin Wei Yang Fabrication of Carbon Aerogels Derived from Metal-Organic Frameworks/Carbon Nanotubes/Cotton Composites as an Efficient Sorbent for Sustainable Oil–Water Separation Applied Sciences zeolitic imidazolate frameworks carbon nanotubes cotton balls oil–water separation |
| title | Fabrication of Carbon Aerogels Derived from Metal-Organic Frameworks/Carbon Nanotubes/Cotton Composites as an Efficient Sorbent for Sustainable Oil–Water Separation |
| title_full | Fabrication of Carbon Aerogels Derived from Metal-Organic Frameworks/Carbon Nanotubes/Cotton Composites as an Efficient Sorbent for Sustainable Oil–Water Separation |
| title_fullStr | Fabrication of Carbon Aerogels Derived from Metal-Organic Frameworks/Carbon Nanotubes/Cotton Composites as an Efficient Sorbent for Sustainable Oil–Water Separation |
| title_full_unstemmed | Fabrication of Carbon Aerogels Derived from Metal-Organic Frameworks/Carbon Nanotubes/Cotton Composites as an Efficient Sorbent for Sustainable Oil–Water Separation |
| title_short | Fabrication of Carbon Aerogels Derived from Metal-Organic Frameworks/Carbon Nanotubes/Cotton Composites as an Efficient Sorbent for Sustainable Oil–Water Separation |
| title_sort | fabrication of carbon aerogels derived from metal organic frameworks carbon nanotubes cotton composites as an efficient sorbent for sustainable oil water separation |
| topic | zeolitic imidazolate frameworks carbon nanotubes cotton balls oil–water separation |
| url | https://www.mdpi.com/2076-3417/12/14/7285 |
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