Synthesis of free-standing graphene in atmospheric pressure microwave plasma for the oil-water separation application
The synthesis of free-standing graphene in a microwave plasma at ambient conditions is currently of great interest. The past works have relied on the usage of higher microwave powers to synthesize free-standing graphene which is not only costly but also an obstacle to the industrialization of the pr...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-10-01
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| Series: | Applied Surface Science Advances |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666523922001027 |
| _version_ | 1798030905861734400 |
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| author | Muhammad Adeel Zafar Mohan V Jacob |
| author_facet | Muhammad Adeel Zafar Mohan V Jacob |
| author_sort | Muhammad Adeel Zafar |
| collection | DOAJ |
| description | The synthesis of free-standing graphene in a microwave plasma at ambient conditions is currently of great interest. The past works have relied on the usage of higher microwave powers to synthesize free-standing graphene which is not only costly but also an obstacle to the industrialization of the process. The aim of this work was to bring down the cost of the process by synthesizing graphene at a significantly lower microwave power, i.e. 250 W. The formation of graphene was confirmed through Raman spectrum and scanning electron microscopy, where the Raman spectrum showed the signature 2D peak of graphene, and the vertical orientation of the graphene was observed in the microscopic images. The application of graphene in oil-water separation is demonstrated based on its hydrophobic and oleophilic properties. The as-synthesized pristine graphene coated on a melamine sponge showed a mass absorption capacity (57 g/g) comparable to that of functionalized or composite graphene. |
| first_indexed | 2024-04-11T19:48:48Z |
| format | Article |
| id | doaj.art-05cd50b5f4bb46c7a4def79baa5c7f16 |
| institution | Directory Open Access Journal |
| issn | 2666-5239 |
| language | English |
| last_indexed | 2024-04-11T19:48:48Z |
| publishDate | 2022-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Applied Surface Science Advances |
| spelling | doaj.art-05cd50b5f4bb46c7a4def79baa5c7f162022-12-22T04:06:22ZengElsevierApplied Surface Science Advances2666-52392022-10-0111100312Synthesis of free-standing graphene in atmospheric pressure microwave plasma for the oil-water separation applicationMuhammad Adeel Zafar0Mohan V Jacob1Electronics Materials Lab, College of Science and Engineering, James Cook University, Townsville, QLD 4811, AustraliaCorresponding author.; Electronics Materials Lab, College of Science and Engineering, James Cook University, Townsville, QLD 4811, AustraliaThe synthesis of free-standing graphene in a microwave plasma at ambient conditions is currently of great interest. The past works have relied on the usage of higher microwave powers to synthesize free-standing graphene which is not only costly but also an obstacle to the industrialization of the process. The aim of this work was to bring down the cost of the process by synthesizing graphene at a significantly lower microwave power, i.e. 250 W. The formation of graphene was confirmed through Raman spectrum and scanning electron microscopy, where the Raman spectrum showed the signature 2D peak of graphene, and the vertical orientation of the graphene was observed in the microscopic images. The application of graphene in oil-water separation is demonstrated based on its hydrophobic and oleophilic properties. The as-synthesized pristine graphene coated on a melamine sponge showed a mass absorption capacity (57 g/g) comparable to that of functionalized or composite graphene.http://www.sciencedirect.com/science/article/pii/S2666523922001027Atmospheric pressure microwave plasmaFree-standing grapheneMethane-derived grapheneRaman spectrumScanning electron microscopy of graphene |
| spellingShingle | Muhammad Adeel Zafar Mohan V Jacob Synthesis of free-standing graphene in atmospheric pressure microwave plasma for the oil-water separation application Applied Surface Science Advances Atmospheric pressure microwave plasma Free-standing graphene Methane-derived graphene Raman spectrum Scanning electron microscopy of graphene |
| title | Synthesis of free-standing graphene in atmospheric pressure microwave plasma for the oil-water separation application |
| title_full | Synthesis of free-standing graphene in atmospheric pressure microwave plasma for the oil-water separation application |
| title_fullStr | Synthesis of free-standing graphene in atmospheric pressure microwave plasma for the oil-water separation application |
| title_full_unstemmed | Synthesis of free-standing graphene in atmospheric pressure microwave plasma for the oil-water separation application |
| title_short | Synthesis of free-standing graphene in atmospheric pressure microwave plasma for the oil-water separation application |
| title_sort | synthesis of free standing graphene in atmospheric pressure microwave plasma for the oil water separation application |
| topic | Atmospheric pressure microwave plasma Free-standing graphene Methane-derived graphene Raman spectrum Scanning electron microscopy of graphene |
| url | http://www.sciencedirect.com/science/article/pii/S2666523922001027 |
| work_keys_str_mv | AT muhammadadeelzafar synthesisoffreestandinggrapheneinatmosphericpressuremicrowaveplasmafortheoilwaterseparationapplication AT mohanvjacob synthesisoffreestandinggrapheneinatmosphericpressuremicrowaveplasmafortheoilwaterseparationapplication |