RAHMADANTI, ZAHRA (2025) DETEKTOR LOGAM Fe3+ DARI CARBON DOTS LIMBAH KULIT PEPAYA MENGGUNAKAN TEKNIK MICROWAVE. S1 thesis, UNIVERSITAS SULTAN AGENG TIRTAYASA.
![[img]](https://eprints.untirta.ac.id/style/images/fileicons/text.png) |
Text (SKRIPSI)
ZAHRA RAHMADANTI_2280210033_FULL TEXT.pdf Restricted to Registered users only Download (2MB) |
|
Text (SKRIPSI)
ZAHRA RAHMADANTI_2280210033_CP.pdf Restricted to Registered users only Download (196kB) |
|
Text (SKRIPSI)
ZAHRA RAHMADANTI_2280210033_01.pdf Restricted to Registered users only Download (4MB) |
|
Text (SKRIPSI)
ZAHRA RAHMADANTI_2280210033_02.pdf Restricted to Registered users only Download (384kB) |
|
Text (SKRIPSI)
ZAHRA RAHMADANTI_2280210033_03.pdf Restricted to Registered users only Download (290kB) |
|
Text (SKRIPSI)
ZAHRA RAHMADANTI_2280210033_04.pdf Restricted to Registered users only Download (453kB) |
|
Text (SKRIPSI)
ZAHRA RAHMADANTI_2280210033_05.pdf Restricted to Registered users only Download (224kB) |
|
Text (SKRIPSI)
ZAHRA RAHMADANTI_2280210033_REF.pdf Restricted to Registered users only Download (215kB) |
|
Text (SKRIPSI)
ZAHRA RAHMADANTI_2280210033_LAMP.pdf Restricted to Registered users only Download (744kB) |
Abstract
This study aims to synthesize carbon dots (C-dots) from papaya peel waste using microwave irradiation method and assess their potential as Fe³⁺ metal ion sensor. The synthesis was carried out by smoothing papaya skin and heating it using microwave, then characterization was carried out using UV-Vis spectrophotometer and photoluminescence (PL). The results showed that the Cdots produced had a cyan-colored luminescence when illuminated by UV light, with emission peaks in the range of 420-490 nm. UV-Vis analysis showed a change in absorbance spectrum after the addition of Fe³⁺, while PL analysis showed a change in emission intensity indicating a specific interaction between Cdots and Fe³⁺ ions. Based on these results, C-dots from papaya skin have the potential as a sensitive and environmentally friendly optical sensor material to detect Fe³⁺ heavy metal.
| Item Type: | Thesis (S1) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Contributors: |
|
|||||||||
| Additional Information: | Penelitian ini bertujuan untuk mensintesis carbon dots (C-dots) dari limbah kulit pepaya menggunakan metode iradiasi gelombang mikro (microwave) dan mengkaji potensinya sebagai sensor ion logam Fe³⁺. Sintesis dilakukan dengan cara menghaluskan kulit pepaya dan memanaskannya menggunakan microwave, kemudian dilakukan karakterisasi menggunakan spektrofotometer UV-Vis dan photoluminescence (PL). Hasil pengamatan menunjukkan bahwa C-dots yang dihasilkan memiliki pendaran cahaya berwarna cyan saat disinari sinar UV, dengan puncak emisi pada rentang 420–490 nm. Analisis UV-Vis menunjukkan adanya perubahan spektrum absorbansi setelah penambahan Fe³⁺, sedangkan analisis PL menunjukkan perubahan intensitas emisi yang menandakan interaksi spesifik antara C-dots dan ion Fe³⁺. Berdasarkan hasil tersebut, C-dots dari kulit pepaya memiliki potensi sebagai material sensor optik yang sensitif dan ramah lingkungan untuk mendeteksi logam berat Fe³⁺. | |||||||||
| Uncontrolled Keywords: | Carbon Dots, Fe3+, Microwave, Papaya Peel Carbon Dots, Fe³⁺, Kulit Pepaya, Microwave | |||||||||
| Subjects: | L Education > L Education (General) Q Science > Q Science (General) Q Science > QC Physics |
|||||||||
| Divisions: | 02-Fakultas Keguruan dan Ilmu Pendidikan 02-Fakultas Keguruan dan Ilmu Pendidikan > 84203-Jurusan Pendidikan Fisika |
|||||||||
| Depositing User: | Zahra Rahmadanti | |||||||||
| Date Deposited: | 21 Jul 2025 07:52 | |||||||||
| Last Modified: | 21 Jul 2025 07:52 | |||||||||
| URI: | http://eprints.untirta.ac.id/id/eprint/51091 |
Actions (login required)
 |
View Item |