Graphene Quantum Dots from Agricultural Wastes: Green Synthesis and Advanced Applications for Energy Storage
Carbon nanostructures are highly promising materials for applications in a variety of different fields. Besides their interesting performances, the possibility to synthesize them from biowaste makes them an eco-friendly resource widely exploitable within a circular economy context. The present work...
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MDPI AG
2024-11-01
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| Online Access: | https://www.mdpi.com/1420-3049/29/23/5666 |
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| author | Pierfrancesco Atanasio Rubia Y. S. Zampiva Luca Buccini Corrado Di Conzo Anacleto Proietti Francesco Mura Annalisa Aurora Andrea G. Marrani Daniele Passeri Marco Rossi Mauro Pasquali Francesca A. Scaramuzzo |
| author_facet | Pierfrancesco Atanasio Rubia Y. S. Zampiva Luca Buccini Corrado Di Conzo Anacleto Proietti Francesco Mura Annalisa Aurora Andrea G. Marrani Daniele Passeri Marco Rossi Mauro Pasquali Francesca A. Scaramuzzo |
| author_sort | Pierfrancesco Atanasio |
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| description | Carbon nanostructures are highly promising materials for applications in a variety of different fields. Besides their interesting performances, the possibility to synthesize them from biowaste makes them an eco-friendly resource widely exploitable within a circular economy context. The present work deals with the green, one-pot synthesis of graphene quantum dots (GQDs) from carbon aerogels (CAs) derived from rice husk (RH). After having obtained CAs upon purification of RH, followed by gelification and carbonization of the resulting cellulose, the one-pot solventless production of GQDs was obtained by ball milling. This method determined the formation of crystalline nanostructures with a diameter of around 20 nm, which were analyzed via scanning electron microscopy, transmission electron microscopy, atomic force microscopy, X-ray diffraction, and Raman spectroscopy to obtain a full morphological and structural characterization. GQDs were used as electrode materials for supercapacitors and Li-ion batteries, showing the ability to both accumulate charges over the surface and intercalate lithium-ions. The reported results are a proof of principle of the possibility of exploiting GQDs as support material for the development of advanced systems for energy storage. |
| format | Article |
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| institution | Kabale University |
| issn | 1420-3049 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj-art-c483ccb48b4540488dd7e214c07ba89f2024-12-13T16:28:38ZengMDPI AGMolecules1420-30492024-11-012923566610.3390/molecules29235666Graphene Quantum Dots from Agricultural Wastes: Green Synthesis and Advanced Applications for Energy StoragePierfrancesco Atanasio0Rubia Y. S. Zampiva1Luca Buccini2Corrado Di Conzo3Anacleto Proietti4Francesco Mura5Annalisa Aurora6Andrea G. Marrani7Daniele Passeri8Marco Rossi9Mauro Pasquali10Francesca A. Scaramuzzo11Department of Basic and Applied Sciences for Engineering (SBAI), Sapienza University of Rome, Via A. Scarpa 14, 00161 Rome, ItalyDepartment of Basic and Applied Sciences for Engineering (SBAI), Sapienza University of Rome, Via A. Scarpa 14, 00161 Rome, ItalyDepartment of Basic and Applied Sciences for Engineering (SBAI), Sapienza University of Rome, Via A. Scarpa 14, 00161 Rome, ItalyDepartment of Applied Science and Technology (DISAT), Polytechnic of Turin, Corso Castelfilardo 39, 10129 Torino, ItalyDepartment of Basic and Applied Sciences for Engineering (SBAI), Sapienza University of Rome, Via A. Scarpa 14, 00161 Rome, ItalyDepartment of Basic and Applied Sciences for Engineering (SBAI), Sapienza University of Rome, Via A. Scarpa 14, 00161 Rome, ItalyDepartment of Energy Technologies and Renewable Sources C.R. ENEA Casaccia, Via Anguillarese 301, 00123 Rome, ItalyDepartment of Chemistry, Sapienza University of Rome, Piazzale A. Moro 5, 00185 Rome, ItalyDepartment of Basic and Applied Sciences for Engineering (SBAI), Sapienza University of Rome, Via A. Scarpa 14, 00161 Rome, ItalyDepartment of Basic and Applied Sciences for Engineering (SBAI), Sapienza University of Rome, Via A. Scarpa 14, 00161 Rome, ItalyDepartment of Basic and Applied Sciences for Engineering (SBAI), Sapienza University of Rome, Via A. Scarpa 14, 00161 Rome, ItalyDepartment of Basic and Applied Sciences for Engineering (SBAI), Sapienza University of Rome, Via A. Scarpa 14, 00161 Rome, ItalyCarbon nanostructures are highly promising materials for applications in a variety of different fields. Besides their interesting performances, the possibility to synthesize them from biowaste makes them an eco-friendly resource widely exploitable within a circular economy context. The present work deals with the green, one-pot synthesis of graphene quantum dots (GQDs) from carbon aerogels (CAs) derived from rice husk (RH). After having obtained CAs upon purification of RH, followed by gelification and carbonization of the resulting cellulose, the one-pot solventless production of GQDs was obtained by ball milling. This method determined the formation of crystalline nanostructures with a diameter of around 20 nm, which were analyzed via scanning electron microscopy, transmission electron microscopy, atomic force microscopy, X-ray diffraction, and Raman spectroscopy to obtain a full morphological and structural characterization. GQDs were used as electrode materials for supercapacitors and Li-ion batteries, showing the ability to both accumulate charges over the surface and intercalate lithium-ions. The reported results are a proof of principle of the possibility of exploiting GQDs as support material for the development of advanced systems for energy storage.https://www.mdpi.com/1420-3049/29/23/5666graphene quantum dotsrice husksupercapacitorsLi-ion batteriesnanomaterialsenergy storage |
| spellingShingle | Pierfrancesco Atanasio Rubia Y. S. Zampiva Luca Buccini Corrado Di Conzo Anacleto Proietti Francesco Mura Annalisa Aurora Andrea G. Marrani Daniele Passeri Marco Rossi Mauro Pasquali Francesca A. Scaramuzzo Graphene Quantum Dots from Agricultural Wastes: Green Synthesis and Advanced Applications for Energy Storage Molecules graphene quantum dots rice husk supercapacitors Li-ion batteries nanomaterials energy storage |
| title | Graphene Quantum Dots from Agricultural Wastes: Green Synthesis and Advanced Applications for Energy Storage |
| title_full | Graphene Quantum Dots from Agricultural Wastes: Green Synthesis and Advanced Applications for Energy Storage |
| title_fullStr | Graphene Quantum Dots from Agricultural Wastes: Green Synthesis and Advanced Applications for Energy Storage |
| title_full_unstemmed | Graphene Quantum Dots from Agricultural Wastes: Green Synthesis and Advanced Applications for Energy Storage |
| title_short | Graphene Quantum Dots from Agricultural Wastes: Green Synthesis and Advanced Applications for Energy Storage |
| title_sort | graphene quantum dots from agricultural wastes green synthesis and advanced applications for energy storage |
| topic | graphene quantum dots rice husk supercapacitors Li-ion batteries nanomaterials energy storage |
| url | https://www.mdpi.com/1420-3049/29/23/5666 |
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