Non-emission hydrothermal low-temperature synthesis of carbon nanomaterials from poly (ethylene terephthalate) plastic waste for excellent supercapacitor applications
ABSTRACTPoly(ethylene terephthalate) (PET) has a wide range of applications that generate a lot of waste globally; thus, upcycling PET is important because it offers several industrial and economic advantages. This study describes a sustainable, emissions-free process for converting PET plastics int...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2023-01-01
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| Series: | Green Chemistry Letters and Reviews |
| Subjects: | |
| Online Access: | https://www.tandfonline.com/doi/10.1080/17518253.2023.2173025 |
| _version_ | 1797450028563824640 |
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| author | Moses Kigozi Gabriel N. Kasozi Sachin Balaso Mohite Sizwe Zamisa Rajshekhar Karpoormath John Baptist Kirabira Emmanuel Tebandeke |
| author_facet | Moses Kigozi Gabriel N. Kasozi Sachin Balaso Mohite Sizwe Zamisa Rajshekhar Karpoormath John Baptist Kirabira Emmanuel Tebandeke |
| author_sort | Moses Kigozi |
| collection | DOAJ |
| description | ABSTRACTPoly(ethylene terephthalate) (PET) has a wide range of applications that generate a lot of waste globally; thus, upcycling PET is important because it offers several industrial and economic advantages. This study describes a sustainable, emissions-free process for converting PET plastics into carbon nanomaterials (CNMs) named PT-nano powder. The thermal-hydrothermal method has employed the production of PT-nano powder above the glass transition temperature (Tg) of PET plastics. Under optimal conditions, PET plastics were efficiently converted into PT-nano powder with 86.6% crystallinity and an average particle size of 6.5 nm. The PT-nano powder was characterized for physical and chemical properties using different techniques, including UV-Vis, FTIR, Raman spectroscopy, XRD, FESEM, TEM, and proton NMR analysis. The characterization confirms the complete conversion of PET to solid fractions of carbon nanomaterial. The PT-nano powder was tested in supercapacitor performance application with electrochemical characterization. The symmetric fabrication showed a specific capacitance of 250.8 F/g, energy density of 34.83Wh/kg, and power density of 999.9W/kg with a current density of 0.5A/g. The device fabrication exhibited high cycle stability and high capacitance retention of 96.8% with a current density of 1.5A/g after 10000 cycles. |
| first_indexed | 2024-03-09T14:34:34Z |
| format | Article |
| id | doaj.art-554eb218d9074659996673a9f05d26a3 |
| institution | Directory Open Access Journal |
| issn | 1751-8253 1751-7192 |
| language | English |
| last_indexed | 2024-03-09T14:34:34Z |
| publishDate | 2023-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Green Chemistry Letters and Reviews |
| spelling | doaj.art-554eb218d9074659996673a9f05d26a32023-11-27T14:52:11ZengTaylor & Francis GroupGreen Chemistry Letters and Reviews1751-82531751-71922023-01-0116110.1080/17518253.2023.2173025Non-emission hydrothermal low-temperature synthesis of carbon nanomaterials from poly (ethylene terephthalate) plastic waste for excellent supercapacitor applicationsMoses Kigozi0Gabriel N. Kasozi1Sachin Balaso Mohite2Sizwe Zamisa3Rajshekhar Karpoormath4John Baptist Kirabira5Emmanuel Tebandeke6Department of Chemistry, College of Natural Sciences, Makerere University, Kampala, UgandaDepartment of Chemistry, College of Natural Sciences, Makerere University, Kampala, UgandaDepartment of Pharmaceutical Sciences, University of Kwazulu-Natal, Durban, South AfricaSchool of Chemistry and Physics, University of KwaZulu-Natal, Durban, South AfricaDepartment of Pharmaceutical Sciences, University of Kwazulu-Natal, Durban, South AfricaDepartment of Mechanical Engineering, Makerere University, Kampala, UgandaDepartment of Chemistry, College of Natural Sciences, Makerere University, Kampala, UgandaABSTRACTPoly(ethylene terephthalate) (PET) has a wide range of applications that generate a lot of waste globally; thus, upcycling PET is important because it offers several industrial and economic advantages. This study describes a sustainable, emissions-free process for converting PET plastics into carbon nanomaterials (CNMs) named PT-nano powder. The thermal-hydrothermal method has employed the production of PT-nano powder above the glass transition temperature (Tg) of PET plastics. Under optimal conditions, PET plastics were efficiently converted into PT-nano powder with 86.6% crystallinity and an average particle size of 6.5 nm. The PT-nano powder was characterized for physical and chemical properties using different techniques, including UV-Vis, FTIR, Raman spectroscopy, XRD, FESEM, TEM, and proton NMR analysis. The characterization confirms the complete conversion of PET to solid fractions of carbon nanomaterial. The PT-nano powder was tested in supercapacitor performance application with electrochemical characterization. The symmetric fabrication showed a specific capacitance of 250.8 F/g, energy density of 34.83Wh/kg, and power density of 999.9W/kg with a current density of 0.5A/g. The device fabrication exhibited high cycle stability and high capacitance retention of 96.8% with a current density of 1.5A/g after 10000 cycles.https://www.tandfonline.com/doi/10.1080/17518253.2023.2173025Non-emissionlow-temperatureup-cyclingpoly(ethylene terephthalate)carbon nanomaterial |
| spellingShingle | Moses Kigozi Gabriel N. Kasozi Sachin Balaso Mohite Sizwe Zamisa Rajshekhar Karpoormath John Baptist Kirabira Emmanuel Tebandeke Non-emission hydrothermal low-temperature synthesis of carbon nanomaterials from poly (ethylene terephthalate) plastic waste for excellent supercapacitor applications Green Chemistry Letters and Reviews Non-emission low-temperature up-cycling poly(ethylene terephthalate) carbon nanomaterial |
| title | Non-emission hydrothermal low-temperature synthesis of carbon nanomaterials from poly (ethylene terephthalate) plastic waste for excellent supercapacitor applications |
| title_full | Non-emission hydrothermal low-temperature synthesis of carbon nanomaterials from poly (ethylene terephthalate) plastic waste for excellent supercapacitor applications |
| title_fullStr | Non-emission hydrothermal low-temperature synthesis of carbon nanomaterials from poly (ethylene terephthalate) plastic waste for excellent supercapacitor applications |
| title_full_unstemmed | Non-emission hydrothermal low-temperature synthesis of carbon nanomaterials from poly (ethylene terephthalate) plastic waste for excellent supercapacitor applications |
| title_short | Non-emission hydrothermal low-temperature synthesis of carbon nanomaterials from poly (ethylene terephthalate) plastic waste for excellent supercapacitor applications |
| title_sort | non emission hydrothermal low temperature synthesis of carbon nanomaterials from poly ethylene terephthalate plastic waste for excellent supercapacitor applications |
| topic | Non-emission low-temperature up-cycling poly(ethylene terephthalate) carbon nanomaterial |
| url | https://www.tandfonline.com/doi/10.1080/17518253.2023.2173025 |
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