Graphene Recovery in Both Dispersed and Decanted Fractions from Lithium-Ion Battery Graphite via Sonication
In this study, graphene production via liquid-phase exfoliation assisted by sonication was evaluated using deionized water as a solvent and two graphite sources: one recovered from spent lithium-ion batteries (LIBs) and a commercial counterpart. A 750 W, 20 kHz ultrasonic processor was used, with so...
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MDPI AG
2025-06-01
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| Online Access: | https://www.mdpi.com/2313-4321/10/3/119 |
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| author | Erasmo Arriola-Villaseñor Alba Nelly Ardila Arias Santiago Bedoya Betancour Luz Marina Ocampo-Carmona Trino Armano Zepeda Partida Sergio A. Gómez Torres Gustavo Ariel Fuentes Zurita |
| author_facet | Erasmo Arriola-Villaseñor Alba Nelly Ardila Arias Santiago Bedoya Betancour Luz Marina Ocampo-Carmona Trino Armano Zepeda Partida Sergio A. Gómez Torres Gustavo Ariel Fuentes Zurita |
| author_sort | Erasmo Arriola-Villaseñor |
| collection | DOAJ |
| description | In this study, graphene production via liquid-phase exfoliation assisted by sonication was evaluated using deionized water as a solvent and two graphite sources: one recovered from spent lithium-ion batteries (LIBs) and a commercial counterpart. A 750 W, 20 kHz ultrasonic processor was used, with sonication amplitudes ranging from 50% to 80% for two hours while maintaining a constant temperature of 45 °C. The resulting dispersions were left undisturbed for 24 h at ambient temperature to allow natural phase separation between decanted and dispersed fractions. These fractions were subsequently dried and weighed to determine exfoliation yield. High-quality graphene was successfully obtained via direct liquid-phase exfoliation of graphite recovered from LIBs, assisted by sonication in deionized water. Graphene formation was confirmed in both suspended and decanted fractions after two hours of sonication at 80% amplitude through complementary characterization techniques, including UV-Vis, Raman spectroscopy, HRTEM, and XRD. Comparative experiments using thermally pretreated battery graphite and commercial graphite revealed that graphene dispersions derived from untreated LIB-derived graphite exhibited greater long-term stability than those obtained from commercial or thermally pretreated battery graphite before sonication. |
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| institution | Kabale University |
| issn | 2313-4321 |
| language | English |
| publishDate | 2025-06-01 |
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| spelling | doaj-art-ae1753387d954dac95bc96fcc29dd23c2025-08-20T03:29:40ZengMDPI AGRecycling2313-43212025-06-0110311910.3390/recycling10030119Graphene Recovery in Both Dispersed and Decanted Fractions from Lithium-Ion Battery Graphite via SonicationErasmo Arriola-Villaseñor0Alba Nelly Ardila Arias1Santiago Bedoya Betancour2Luz Marina Ocampo-Carmona3Trino Armano Zepeda Partida4Sergio A. Gómez Torres5Gustavo Ariel Fuentes Zurita6Research Group on Environmental Catalysis and Renewable Energies—CAMER, Politécnico Colombiano Jaime Isaza Cadavid, Medellín 050010, Antioquia, ColombiaResearch Group on Environmental Catalysis and Renewable Energies—CAMER, Politécnico Colombiano Jaime Isaza Cadavid, Medellín 050010, Antioquia, ColombiaResearch Group on Environmental Catalysis and Renewable Energies—CAMER, Politécnico Colombiano Jaime Isaza Cadavid, Medellín 050010, Antioquia, ColombiaFacultad de Minas, Universidad Nacional de Colombia Sede Medellín—UNAL, Medellín 050034, Antioquia, ColombiaCentro de Nanociencias y Nanotecnología CNyN-UNAM, Ensenada 22800, Baja California, MexicoDepartamento Ingeniería de Procesos e Hidráulica, Universidad A. Metropolitana-Iztapalapa—UAMI, Iztapalapa, Mexico City 09310, MexicoDepartamento Ingeniería de Procesos e Hidráulica, Universidad A. Metropolitana-Iztapalapa—UAMI, Iztapalapa, Mexico City 09310, MexicoIn this study, graphene production via liquid-phase exfoliation assisted by sonication was evaluated using deionized water as a solvent and two graphite sources: one recovered from spent lithium-ion batteries (LIBs) and a commercial counterpart. A 750 W, 20 kHz ultrasonic processor was used, with sonication amplitudes ranging from 50% to 80% for two hours while maintaining a constant temperature of 45 °C. The resulting dispersions were left undisturbed for 24 h at ambient temperature to allow natural phase separation between decanted and dispersed fractions. These fractions were subsequently dried and weighed to determine exfoliation yield. High-quality graphene was successfully obtained via direct liquid-phase exfoliation of graphite recovered from LIBs, assisted by sonication in deionized water. Graphene formation was confirmed in both suspended and decanted fractions after two hours of sonication at 80% amplitude through complementary characterization techniques, including UV-Vis, Raman spectroscopy, HRTEM, and XRD. Comparative experiments using thermally pretreated battery graphite and commercial graphite revealed that graphene dispersions derived from untreated LIB-derived graphite exhibited greater long-term stability than those obtained from commercial or thermally pretreated battery graphite before sonication.https://www.mdpi.com/2313-4321/10/3/119graphitespentlithium-ion batteriesdirect liquid phase exfoliationgraphene |
| spellingShingle | Erasmo Arriola-Villaseñor Alba Nelly Ardila Arias Santiago Bedoya Betancour Luz Marina Ocampo-Carmona Trino Armano Zepeda Partida Sergio A. Gómez Torres Gustavo Ariel Fuentes Zurita Graphene Recovery in Both Dispersed and Decanted Fractions from Lithium-Ion Battery Graphite via Sonication Recycling graphite spent lithium-ion batteries direct liquid phase exfoliation graphene |
| title | Graphene Recovery in Both Dispersed and Decanted Fractions from Lithium-Ion Battery Graphite via Sonication |
| title_full | Graphene Recovery in Both Dispersed and Decanted Fractions from Lithium-Ion Battery Graphite via Sonication |
| title_fullStr | Graphene Recovery in Both Dispersed and Decanted Fractions from Lithium-Ion Battery Graphite via Sonication |
| title_full_unstemmed | Graphene Recovery in Both Dispersed and Decanted Fractions from Lithium-Ion Battery Graphite via Sonication |
| title_short | Graphene Recovery in Both Dispersed and Decanted Fractions from Lithium-Ion Battery Graphite via Sonication |
| title_sort | graphene recovery in both dispersed and decanted fractions from lithium ion battery graphite via sonication |
| topic | graphite spent lithium-ion batteries direct liquid phase exfoliation graphene |
| url | https://www.mdpi.com/2313-4321/10/3/119 |
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