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HomeKey Engineering MaterialsKey Engineering Materials Vol. 944Synthesis of Fe3O4 /TiO2-S Composite and Its...

Synthesis of Fe₃O₄/TiO₂-S Composite and Its Activity Test as Photocatalyst on the Metanil Yellow Degradation

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Abstract:

The synthesis of sulfur-doped titania magnetite composite and its activity as a photocatalyst in the degradation of metanil yellow have been investigated. The variations of sulfur dopan concentration studied were 1%, 3%, 5%, and 7%. The synthesized Fe₃O₄/TiO₂-S composite was characterized using FTIR, XRD, TEM, SEM-EDX, DR-UV, and VSM. The results showed that the Fe₃O₄/TiO₂-S photocatalyst is visible light responsive with magnetic properties. Sulfur dopan concentrations of 1, 3, 5, and 7 (%) had band gap energies of 2.83, 2.81, 2.76, and 2.84 (eV), respectively. The photodegradation results showed that Fe₃O₄/TiO₂-S 5% composite material could degrade metanil yellow in acidic pH at 180 min under visible light irradiation (73.44). The structural stability was observed after three times of photocatalyst reuse. The degradation kinetics of metanil yellow dye followed the pseudo-second order of Ho and McKay's kinetic model, with K values of 0.52 g mg^-1min^-1 under visible light. This composite has good photodegradation activity for metanil yellow can be applied under visible light and can be reused after use.

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Periodical:

Key Engineering Materials (Volume 944)

Pages:

191-200

DOI:

https://doi.org/10.4028/p-nx0966

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Online since:

April 2023

Authors:

Juliana Miftakhul Jannah*, Eko Sri Kunarti, Sri Juari Santosa

Keywords:

Fe₃O₄/TiO₂- S, Methanyl Yellow, Photocatalyst, Photocatalytic Degradation, Visible Light

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© 2023 Trans Tech Publications Ltd. All Rights Reserved

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