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Core-shell Fe3O4/SiO2/TiO2 Magnetic Modified Ag for the Photocatalytic Degradation of Congo Red Dye and Antibacterial Activity

Bulletin of Chemical Reaction Engineering & Catalysis · Vol. ume (2023) · hlm. 315–330

DOI
10.9767/bcrec.19275
ISSN
1978-2993
Terbit
2023-08-20
Penerbit
Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)
Bahasa
eng
Lisensi
creativecommons.org/licenses/by-sa/4.0

Abstrak

Disposal of dye wastewater can induce detrimental consequences for human health and the environment. The study aims to synthesize composites consisting of core-shell Fe3O4/SiO2/TiO2 modified with Ag. The composites comprise a Fe3O4 core, a SiO2 interlayer, and a TiO2 shell, with Ag being mobilized on the surface of the core and shell structures. Fe3O4/SiO2/TiO2@Ag composite was employed in the photocatalytic degradation of Congo red dye and antibacterial activity test. The degradation was facilitated by visible light irradiation while considering different factors such as pH solution, the photocatalyst dosage, and the dye's initial concentration. The composite was characterized using X-ray Diffraction (XRD), Fourier Transform Infrared (FTIR), Scanning Electron Microscopy-Electron Dispersive X-ray Spectroscopy (SEM-EDS), Vibrating Sample Magnetometer (VSM), and UV-Vis Diffuse Reflectance Spectroscopy (UV-Vis DRS). The findings indicated that the composite exhibited strong magnetic, measuring 49.4 emu/g, with a band gap of 2.92 eV. The composite showed commendable catalytic properties, with degradation efficiency of 96.52% for Congo red dye under conditions: a pH solution of 4, a dosage of 0.5 g/L, and a dye concentration of 10 mg/L at 100 min of irradiation. The photocatalytic degradation kinetic is align with pseudo-first-order reactions. The composite also exhibits remarkable stability and efficiency with 4.83% decline in degradation efficiency after five cycles. Fe3O4/SiO2/TiO2@Ag composite exhibited antibacterial activity against Escherichia coli and Staphylococcus aureus with a Minimum Inhibitory Concentration (MIC) value of 250 mg/L. Copyright © 2023 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

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  • Sriwijaya University
  • The University of Western Australia
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Rekan penulisOrganisasiArtikel bersama
Aldes LesbaniSriwijaya University5
Addy RachmatSriwijaya University5
Neza Rahayu PalapaSriwijaya University3
Nabila ApriantiSriwijaya University3
Anisa Fitri AmatullahSriwijaya University3
Hasanudin HasanudinSriwijaya University2
Fahma RiyantiSriwijaya University2
Widia PurwaningrumSriwijaya University2
Tarmizi TaherSriwijaya University2
Hermansyah HermansyahSriwijaya University2
Muhammad ImronSriwijaya University2
Muhammad FaizalSriwijaya University2
Hanifa MarisaSriwijaya University2
Nurlisa HidayatiSriwijaya University1
Mikha Meilinda ChristinaSriwijaya University1
Ferlinahayati FerlinahayatiSriwijaya University1
Adipati NapoleonSriwijaya University1
Bambang YudonoSriwijaya University1
SabaruddinSriwijaya University1
MARYATI BUDI UTAMISriwijaya University1
Ra Hoetary Tirta AmalliaSriwijaya University1
Irfannuddin IrfannuddinSriwijaya University1
Eddy IbrahimSriwijaya University1
Yadi UtamaSriwijaya University1
Fitri HadiahSriwijaya University1
Tine ApriantiThe University of Western Australia1
Tuti Indah SariSriwijaya University1
Novia NoviaSriwijaya University1
Getari KasmiartiSriwijaya University1
Maftuh GozaliSriwijaya University1
Julinar JulinarSriwijaya University1
Zainal FananiSriwijaya University1
Lora VitanesaSriwijaya University1
Radja Nardo PurbaSriwijaya University1
Intan Permata SariSriwijaya University1
Aldes LesbaniAfiliasi tidak diketahui1

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Sumber metadata: OAI-PMH (metadata jurnal) https://journal.bcrec.id/index.php/bcrec/oai, pertama di-harvest 8 Nov 2026, terakhir terlihat 8 Nov 2026.
Metadata asli (oai_dc) 
<oai_dc:dc xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/  http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
	<dc:title xml:lang="en-US">Core-shell Fe3O4/SiO2/TiO2 Magnetic Modified Ag for the Photocatalytic Degradation of Congo Red Dye and Antibacterial Activity</dc:title>
	<dc:creator>Hariani, Poedji Loekitowati</dc:creator>
	<dc:creator>Salni, Salni</dc:creator>
	<dc:creator>Said, Muhammad</dc:creator>
	<dc:creator>Farahdiba, Rahfi</dc:creator>
	<dc:subject xml:lang="en-US">Core-shell; Fe3O4/SiO2/TiO2@Ag; photocatalytic degradation; Congo red dye; antibacterial</dc:subject>
	<dc:description xml:lang="en-US">Disposal of dye wastewater can induce detrimental consequences for human health and the environment. The study aims to synthesize composites consisting of core-shell Fe3O4/SiO2/TiO2 modified with Ag. The composites comprise a Fe3O4 core, a SiO2 interlayer, and a TiO2 shell, with Ag being mobilized on the surface of the core and shell structures. Fe3O4/SiO2/TiO2@Ag composite was employed in the photocatalytic degradation of Congo red dye and antibacterial activity test. The degradation was facilitated by visible light irradiation while considering different factors such as pH solution, the photocatalyst dosage, and the dye's initial concentration. The composite was characterized using X-ray Diffraction (XRD), Fourier Transform Infrared (FTIR), Scanning Electron Microscopy-Electron Dispersive X-ray Spectroscopy (SEM-EDS), Vibrating Sample Magnetometer (VSM), and UV-Vis Diffuse Reflectance Spectroscopy (UV-Vis DRS). The findings indicated that the composite exhibited strong magnetic, measuring 49.4 emu/g, with a band gap of 2.92 eV. The composite showed commendable catalytic properties, with degradation efficiency of 96.52% for Congo red dye under conditions: a pH solution of 4, a dosage of 0.5 g/L, and a dye concentration of 10 mg/L at 100 min of irradiation. The photocatalytic degradation kinetic is align with pseudo-first-order reactions. The composite also exhibits remarkable stability and efficiency with 4.83% decline in degradation efficiency after five cycles. Fe3O4/SiO2/TiO2@Ag composite exhibited antibacterial activity against Escherichia coli and Staphylococcus aureus with a Minimum Inhibitory Concentration (MIC) value of 250 mg/L. Copyright © 2023 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0). </dc:description>
	<dc:publisher xml:lang="en-US">Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)</dc:publisher>
	<dc:date>2023-08-20</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:type xml:lang="en-US"></dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://journal.bcrec.id/index.php/bcrec/article/view/19275</dc:identifier>
	<dc:identifier>10.9767/bcrec.19275</dc:identifier>
	<dc:source xml:lang="en-US">Bulletin of Chemical Reaction Engineering &amp; Catalysis; 2023: BCREC Volume 18 Issue 2 Year 2023 (August 2023); 315-330</dc:source>
	<dc:source>1978-2993</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://journal.bcrec.id/index.php/bcrec/article/view/19275/9548</dc:relation>
	<dc:relation>https://journal.bcrec.id/index.php/bcrec/article/downloadSuppFile/19275/4821</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2023 by Authors, Published by BCREC Group</dc:rights>
	<dc:rights xml:lang="en-US">https://creativecommons.org/licenses/by-sa/4.0</dc:rights>
</oai_dc:dc>