Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Surface-Plasmon-Induced Visible Light Photocatalytic Activity of Fe3O4/TiO2 Nanocomposite

Version 1 : Received: 4 October 2020 / Approved: 5 October 2020 / Online: 5 October 2020 (17:51:13 CEST)

How to cite: Esmaeili, N.; Ebrahimian Pirbazari, A.; Khodaee, Z. Surface-Plasmon-Induced Visible Light Photocatalytic Activity of Fe3O4/TiO2 Nanocomposite. Preprints 2020, 2020100104 (doi: 10.20944/preprints202010.0104.v1). Esmaeili, N.; Ebrahimian Pirbazari, A.; Khodaee, Z. Surface-Plasmon-Induced Visible Light Photocatalytic Activity of Fe3O4/TiO2 Nanocomposite. Preprints 2020, 2020100104 (doi: 10.20944/preprints202010.0104.v1).

Abstract

In this research, first a binary nanocomposite of magnetic recyclable photocatalyst Fe3O4/TiO2, was synthesized by sol gel technique. Then, in order to enhance the photocatalytic activity of the synthesized nanocomposite, it was deposited by silver nanoparticles for using in degradation of organic pollutants 2, 4-dichlorophenol (2, 4-DCP) under visible light. A range of analytical techniques including XRD, FESEM/EDX, DRS, VSM and N2 physisorption were employed to reveal the crystal structure, morphology and property of the nanocomposites. We obtained 32% and 55% degradation of 2, 4-DCP under visible light after 180 min irradiation in the presence of Fe3O4/TiO2 and Fe3O4/TiO2/Ag respectively. Thus, the excellent visible light photocatalytic activity of Fe3O4/TiO2/Ag sample can be attributed to the surface plasmon resonance effect of Ag nanoparticles deposited on Fe3O4/TiO2 nanocomposite.

Subject Areas

Fe3O4; Ag; TiO2 nanoparticles; Degradation; 2, 4-dichlorophenol

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