Journal
SURFACE & COATINGS TECHNOLOGY
Volume 320, Issue -, Pages 240-245Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.surfcoat.2017.01.029
Keywords
Ag-coated Fe3O4@TiO2; Core-shell structure; Magnetic photocatalyst; Renewable photocatalytic activity; 2,4,6-trichlorophenol
Funding
- National Research Foundation of Korea [NRF-2015M3A9E2066855, NRF-2016R1A6A3A11935787, NRF- 2014R1A1A2054928, 2014H1C1A10669352014]
- Gangneung-Wonju National University
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In this study, a facile and efficient approach for fabricating Ag-coated Fe3O4@TiO2 particles with a good core-shell structure is demonstrated. The synthetic protocol involves coating successive layers of TiO2 nanoparticles onto a magnetic core using a sol-gel method at low temperature, followed by the deposition of silver nanoparticles on the surface of the Fe3O4@TiO2 particles through chemical reduction. The Ag-coated Fe3O4@TiO2 magnetic photocatalyst exhibited high photocatalytic activity in the degradation of Rhodamine B under visible light. Moreover, the Ag-coated Fe3O4@TiO2 photocatalyst showed enhanced photocatalytic properties when compared with a previous report concerning the oxidation of 2,4,6-trichlorophenol in aqueous solution. The renewable photo catalytic activity of the photocatalyst was also examined. (C) 2017 Elsevier B.V. All rights reserved.
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