Fauziah, Ai Asri (2024) GREEN SYNTHESIS CARBON DOTS DARI LIMBAH KULIT SALAK MENGGUNAKAN METODE BOTTOM-UP. S1 thesis, UNIVERSITAS SULTAN AGENG TIRTAYASA.
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Abstract
Carbon dots are a type of carbon that is a fluorescent material with chemical stability and biocompatibility. In general, the synthesis of C-dots involves carbonization of carbon sources. Natural resources are easily widely accepted as environmentally friendly raw materials have great advantages because they are simple, reproducible, and cost-effective in synthesizing C-dots. This study synthesized C-dots from natural resources, namely salak skin. The synthesis of Cdots made from salak skin waste was carried out using the bottom-up method, namely microwave irradiation. Researchers chose the bottom-up synthesis method because of its higher success rate and convenience compared to the bottom-up method. Three samples of C-dots with a concentration of 1:15 heated for 9 minutes, 1:20 heated for 15 minutes, and 1:25 heated for 15 minutes were characterized using a UV-Vis spectrophotometer. The three C-dots samples were successfully characterized and had absorption peaks at 206-209 nm wavelength. And one sample of C-dots with a concentration of 1:15 heated for 9 minutes was characterized using FT-IR and obtained the C = C functional group.
| Item Type: | Thesis (S1) | |||||||||
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| Additional Information: | Carbon dots adalah jenis carbon yang merupakan bahan fluoresen dengan stabilitas kimia dan biokompatibilitas. Secara umum, sintesis C-dots melibatkan carbonisasi sumber carbon. Sumber daya alam mudah diterima secara luas sebagai bahan baku ramah lingkungan memiliki keuntungan besar karena sederhana, dapat direproduksi, dan hemat biaya dalam mensintesis C-dots. Penelitian ini mensintesis C-dots dari sumber daya alam yaitu kulit salak. Sintesis C-dots berbahan limbah kulit salak dilakukan dengan metode bottom-up yaitu iradiasi gelombang mikro. Peneliti memilih metode sintesis bottom-up karena tingkat keberhasilan dan kemudahannya lebih tinggi dibandingkan metode bottom-up. Tiga sampel C-dots dengan konsentrasi 1:15 dipanasankan selama 9 menit, 1:20 dipanasankan selama 15 menit, dan 1:25 dipanasankan selama 15 menit dikarakterisasi menggunakan spektrofotometer UV-Vis. Tiga sampel C-dots tersebut berhasil dikarakterisasi dan memiliki puncak serapan pada panjang gelombang 206-209 nm. Dan satu sampel C-dots dengan konsentrasi 1:15 dipanaskan selama 9 menit dikarakterisasi menggunakan FT-IR dan diperoleh gugus fungsi C = C. | |||||||||
| Subjects: | Q Science > Q Science (General) Q Science > QC Physics |
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| Divisions: | 02-Fakultas Keguruan dan Ilmu Pendidikan 02-Fakultas Keguruan dan Ilmu Pendidikan > 84203-Jurusan Pendidikan Fisika |
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| Depositing User: | Ai Asri Fauziah | |||||||||
| Date Deposited: | 13 Jun 2024 10:33 | |||||||||
| Last Modified: | 13 Jun 2024 10:33 | |||||||||
| URI: | http://eprints.untirta.ac.id/id/eprint/36227 |
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