eprintid: 51091
rev_number: 18
eprint_status: archive
userid: 12416
dir: disk0/00/05/10/91
datestamp: 2025-07-21 07:52:40
lastmod: 2025-07-21 07:52:40
status_changed: 2025-07-21 07:52:40
type: thesis
metadata_visibility: show
creators_name: RAHMADANTI, ZAHRA
creators_id: 2280210033
contributors_type: http://www.loc.gov/loc.terms/relators/THS
contributors_type: http://www.loc.gov/loc.terms/relators/THS
contributors_name: SEPTIANTO, RAHMAT FIRMAN
contributors_name: NUR'AINI, DEVI AYU
contributors_id: 198709042015041001
contributors_id: 199808272024062002
corp_creators: UNIVERSITAS SULTAN AGENG TIRTAYASA
corp_creators: FAKULTAS KEGURUAN DAN ILMU PENDIDIKAN
corp_creators: JURUSAN PENDIDIKAN FISIKA
title: DETEKTOR LOGAM Fe3+ DARI CARBON DOTS LIMBAH KULIT PEPAYA MENGGUNAKAN TEKNIK MICROWAVE
ispublished: pub
subjects: L1
subjects: Q1
subjects: QC
divisions: FKIP
divisions: Fisika
full_text_status: restricted
keywords: Carbon Dots, Fe3+, Microwave, Papaya Peel
Carbon Dots, Fe³⁺, Kulit Pepaya, Microwave
note: 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⁺.
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.
date: 2025
date_type: published
pages: 93
institution: UNIVERSITAS SULTAN AGENG TIRTAYASA
department: PENDIDIKAN FISIKA
thesis_type: sarjana
thesis_name: sarjana
citation:   RAHMADANTI, ZAHRA  (2025) DETEKTOR LOGAM Fe3+ DARI CARBON DOTS LIMBAH KULIT PEPAYA MENGGUNAKAN TEKNIK MICROWAVE.  S1 thesis, UNIVERSITAS SULTAN AGENG TIRTAYASA.   
document_url: https://eprints.untirta.ac.id/51091/1/ZAHRA%20RAHMADANTI_2280210033_FULL%20TEXT.pdf
document_url: https://eprints.untirta.ac.id/51091/2/ZAHRA%20RAHMADANTI_2280210033_CP.pdf
document_url: https://eprints.untirta.ac.id/51091/3/ZAHRA%20RAHMADANTI_2280210033_01.pdf
document_url: https://eprints.untirta.ac.id/51091/4/ZAHRA%20RAHMADANTI_2280210033_02.pdf
document_url: https://eprints.untirta.ac.id/51091/5/ZAHRA%20RAHMADANTI_2280210033_03.pdf
document_url: https://eprints.untirta.ac.id/51091/6/ZAHRA%20RAHMADANTI_2280210033_04.pdf
document_url: https://eprints.untirta.ac.id/51091/7/ZAHRA%20RAHMADANTI_2280210033_05.pdf
document_url: https://eprints.untirta.ac.id/51091/8/ZAHRA%20RAHMADANTI_2280210033_REF.pdf
document_url: https://eprints.untirta.ac.id/51091/9/ZAHRA%20RAHMADANTI_2280210033_LAMP.pdf