relation: https://eprints.untirta.ac.id/48143/
title: PENGARUH KONSENTRASI AWAL METILEN BIRU TERHADAP EFISIENSI DEGRADASI METILEN BIRU OLEH FOTOKATALIS Fe3O4@PEG:ZnO
creator: MAHARANI, RIVIA
subject: Q Science (General)
subject: QC Physics
description: In this study, Fe3O4@PEG:ZnO catalyst was synthesized using coprecipitation method with variation of ZnO mass ratio (1:1) and (1:2). This study aims to determine the effect of ZnO mass addition on Fe3O4@PEG:ZnO nanoparticles, initial concentration of methylene blue and irradiation time on methylene blue dye photocatalyst activity. X-Ray Diffraction (XRD) analysis showed that the crystal sizes of Fe3O4@PEG:ZnO (1:1) and (1:2) were 6.014 nm and 6.012 nm, with cubic crystal structure for Fe3O4 and hexagonal for ZnO. The lattice parameter for Fe3O4 phase is 8.16 Å, while for ZnO phase it is 3.61 Å. Fourier Transform Infra Red (FTIR) Spectrum analysis showed the presence of new functional groups in the sample after the addition of ZnO, namely -OH, C-H, and Zn-O bonds. Vibrating Sample Magnetometer (VSM) results show a decrease in saturation magnetization and remanent magnetization values, as well as an increase in coercive field values. Transmission Electron Microscopy (TEM) characterization results show results that are in accordance with XRD data. UV-Visible Spectrophotometer characterization results show that the energy gap values of Fe3O4@PEG:ZnO (1:1) and (1:2) are 2.66 and 2.38 eV, respectively. Photocatalyst activity test showed that the most optimal methylene blue degradation efficiency at 180th minute for Fe3O4@PEG:ZnO (1:2) sample with initial methylene blue concentration of 5 ppm, which is 49.7%.
date: 2025
type: Thesis
type: NonPeerReviewed
format: text
language: id
identifier: https://eprints.untirta.ac.id/48143/1/Rivia%20Maharani_2280210043_CP.pdf
format: text
language: id
identifier: https://eprints.untirta.ac.id/48143/2/Rivia%20Maharani_2280210043_FULLTEXT.pdf
format: text
language: id
identifier: https://eprints.untirta.ac.id/48143/3/Rivia%20Maharani_2280210043_01.pdf
format: text
language: id
identifier: https://eprints.untirta.ac.id/48143/4/Rivia%20Maharani_2280210043_02.pdf
format: text
language: id
identifier: https://eprints.untirta.ac.id/48143/5/Rivia%20Maharani_2280210043_03.pdf
format: text
language: id
identifier: https://eprints.untirta.ac.id/48143/6/Rivia%20Maharani_2280210043_04.pdf
format: text
language: id
identifier: https://eprints.untirta.ac.id/48143/7/Rivia%20Maharani_2280210043_05.pdf
format: text
language: id
identifier: https://eprints.untirta.ac.id/48143/8/Rivia%20Maharani_2280210043_REF.pdf
format: text
language: id
identifier: https://eprints.untirta.ac.id/48143/9/Rivia%20Maharani_2280210043_LAMP.pdf
identifier:   MAHARANI, RIVIA  (2025) PENGARUH KONSENTRASI AWAL METILEN BIRU TERHADAP EFISIENSI DEGRADASI METILEN BIRU OLEH FOTOKATALIS Fe3O4@PEG:ZnO.  S1 thesis, UNIVERSITAS SULTAN AGENG TIRTAYASA.